dinstock catalogue

8/11/2019 Dinstock Catalogue

1/16

DinStock | Keeping the world from falling apartDinStock | Keeping the world from falling apart

Unit C1-C2 & D6 Hortonwood 10Telford, Shropshire TF1 7ES

Tel: +44 (0)1952 676700Fax: +44 (0)1952 676800

Email: [email protected]: www.dinstock.com

Head Office & Accounts DepartmentTel: +44 (0)1902 366551

We are Dinstock Ltd, a company registered in England and Wales under number 3186695. Ourregistered office is at Unit C1 Hortonwood 10, Telford, Shropshire, England, TF1 7ES. The DinStock

trademark was registered to identify products and services supplied by our company. To learn moreabout trademarks contact The Patent Office or visit their website at http://www.patent.gov.uk.

Care has been taken in the preparation of this catalogue, but no responsibility can be accepted for anyloss, damage or injury arising from its content.

Further copies of this catalogue may be ordered from Dinstock Ltd, Unit C1 Hortonwood 10, Telford,

Shropshire TF1 7ES Telephone: 01952 676700 Fax: 01952 676800

DesignedandprintedbyWeb.DezineLtd.Telephone:01902-369014


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Our Mission Statement

Dinstock Ltd is dedicated to customer

satisfaction by providing quality

products and services, on time and

at a competitive price.

Company Profile

DinStock is a leading manufact-

urer, stockist, and importer of

industrial fasteners, tools andassociated products.

Established in 1996, with a business

history spanning almost 40 years,

DinStock has emerged as a leader

in the fastener trade. Having the

most comprehensive stock profile in

the industry, DinStock is a one-stop

destination for consumers and

wholesalers in the UK and abroad.

The company services a variety of

markets including the construction,

civil engineering, metalworking,

automotive and many others sectors.

By having an inventory of more than

50,000 different line items of over

250 major manufacturers, our

customers can rely on a quick

response and prompt deliveries.

Located in Telford, the warehouse

and showroom is on the edge of the

M6 and M54 motorways, being

perfectly placed for rapid transit

throughout the UK.

Special fasteners, manufactured to

customer drawings, are produced

routinely and efficiently, and all with

competitive pricing.

The Group strives to achieve the

highest standards of quality,

reliability and customer service.

The result; a synergy providing a

diverse and competitive product

range including nuts, bolts, screws,

studs, threaded rods, pins,

construction accessories, washers

and custom forgings.

Robert S. Pearson

Managing Director.

2 3Open Mon - Fri 8 - 5.30pm & Sat 8 - 12pm Open Mon - Fri 8 - 5.30pm & Sat 8 - 12pm

Trade Counter / Showroom

If you prefer the personal touchthen please do not hesitate to callin to one of our showrooms whereour friendly sales staff will be onlytoo pleased to help you with yourrequirements. Any goods availablefrom stock can be collected fromany depot location.

Cash, cheques and most majorcredit cards are accepted, or youcan apply for a credit account.An application form is availableupon request.

Exports

If you have any exportrequirement, then please do nothesitate to contact our specialistexport division at Telford. A fullexport quotation can be providedon any shipping basis and ourstaff are fully trained in methodsof export documentation.

Delivery ServiceIf the goods you order are stockeditems, your order will be processedand delivered within 24-48 hours.

Express or same day deliveries canbe arranged and additionalcharges passed on at cost. We willprovide the lead-time for made-to-order products at the time ofplacing the order. We endeavourto despatch your goods on thesame day that we receive yourorder, but if you need them anyearlier then please specify this andwe will try our best to meet yourrequirements. See page 31 formore information about deliveries.

Keeping the world from falling apart

Commitment to qualityIt is important to note that ourentire organisation follows clearlydefined procedures aimed at

efficiency and customer service.Our Head Office at Willenhall isthe first part of our organisation toattain BS EN ISO 9002accreditation to underline ourcommitment to provide the highestlevels of service required bytoday's industry.

Product searchThere is no need to spend hourson the phone sourcing the toolsand fasteners you need, we cansupply almost any product in theindustrial market place. Just tell uswhat you want and we will track itdown for you.

DinStock is a Limited Company and a member of the Jackdaw Dinstock Group. As one

of the UK's leading manufactures and distributors of industrial fasteners - we also offerthe products and services of our sister company Jackdaw Tools Ltd.

Our Mission Statement

Dinstock Ltd is dedicated to customer

satisfaction by providing quality

products and services, on time and

at a competitive price.

Company Profile

DinStock is a leading manufact-

urer, stockist, and importer of

industrial fasteners, tools andassociated products.

Established in 1996, with a business

history spanning almost 40 years,

DinStock has emerged as a leader

in the fastener trade. Having the

most comprehensive stock profile in

the industry, DinStock is a one-stop

destination for consumers and

wholesalers in the UK and abroad.

The company services a variety of

markets including the construction,

civil engineering, metalworking,

automotive and many others sectors.

By having an inventory of more than

50,000 different line items of over

250 major manufacturers, our

customers can rely on a quick

response and prompt deliveries.

Located in Telford, the warehouse

and showroom is on the edge of the

M6 and M54 motorways, being

perfectly placed for rapid transit

throughout the UK.

Special fasteners, manufactured to

customer drawings, are produced

routinely and efficiently, and all with

competitive pricing.

The Group strives to achieve the

highest standards of quality,

reliability and customer service.

The result; a synergy providing a

diverse and competitive product

range including nuts, bolts, screws,

studs, threaded rods, pins,

construction accessories, washers

and custom forgings.

Robert S. Pearson

Managing Director.

CONTENTSIntroduction 2-3

Square Square Holding Down Bolts 4-5

Void Formers 6

Indented Foundation Bolts 7

High Strength Friction Grip 8-10

High Tensile Bolts & Sets 11-12High Yield Rebar Bolts 13

Threaded Rods 14-18

Lifting 19-21

Nuts 22-23

Washers 24-25

A Guide To Torque Values 26-27

Mechanical Properties 28

Surface Coatings 29

Product & Weight Table 30

Delivery & Insurance 31

Pre-sales technical supportSpecialist technical help is always on hand and our sales staff are fully trained onall our products. The amount of expertise and experience available to you isunrivalled and we are in a unique position to help you. If you need advice on anyof the products contained within this catalogue or any special requirement that isnot contained within the following pages, then please do not hesitate to contactour sales team for assistance.

Welcome to DinS tockWelcome to DinS tock

Robert Pearson - Managing Director


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STOCK RANGE: 4.6 & 8.8

Standard stock sizes are supplied complete

with a hexagon nut only. Lengths start at

300mm and stop at 600mm, however,

lengths up to 1500mm can be

manufactured from blank forgings in both

grades and all non-preferred diameters. Fordetailed product information, please call

our sales team on 01952-676700.

We stock a comprehensive range of blanks, available in both 4.6 and 8.8 condition and up to 1500mm long in all diameters upto M64. All other lengths below the dotted line can be manufactured to order. * NON-PREFERRED DIAMETERS. STANDARDSTOCK LENGTHS.

SQUARE SQUARE HOLDING DOWN BOLTS

BS7419 Grade: 4.6 & 8.8 SSOX

SQUARE SQUARE HOLDING DOWN BOLTS

BS7419 Grade: 4.6 & 8.8 SSOX

AVAILABLE GRADES

All standard stocks are supplied in a mild-steel (4.6) and alloy-steel (8.8) condition, however,

any material can be catered for, including stainless steel and most non-ferrous exotic materials.

APPLICATION & USE

Square Square bolting is mainly used in foundations prior to concrete being poured. When

used in partnership with matching anchorages with square holes, the under-square of the bolt

head locates in the anchorage to prevent the bolts rotation after installation.

Void formers or bolt boxes are commonly used to create a parallel or tapered void around the

bolt to enable bolt adjustment. Void formers are available in several materials, the most

popular Polystyrene, Waxed Cardboard and Expanded Metal.

M12 112 19 12 8 6

M16 116 24 16 10 8

M20 120 30 20 12.5 10

M22 122 32 22 14 12M24 124 36 24 15 12

M27 127 41 27 17 15

M30 130 46 30 18.7 15

M33 133 50 33 21 18

M36 136 55 36 22.5 18

M39 139 60 39 25 21

M42 142 65 42 26 21

M45 145 70 45 28 24

M48 148 75 48 30 24

ANOMINALDIAMETER

BTHREAD LENGTH

mm

CWIDTH ACROSS

FLATS-mm

DUNDERHEAD

THICKNESS-mm

ETHICKNESS OFSQ. HEAD-mm

FUNDERHEAD

WIDTH A/F-mm

4 5FAX DINSTOCK DIRECT

01952 676800EXPRESS ORDER LINE

01952 676700 www.dinstock.com

STANDARD RANGE

ADIAMETER

L300mm

L375mm

L400mm

L450mm

L525mm

L600mm

M12 *

M16

M20

M22 *

M24

M27 *

M30 M33

M36

M39 *

M42

M45 *

M48

300 0.53 300 0.85 - - - - - -

375 0.64 375 1.03 375 1.51 - - - -

450 0.76 450 1.22 450 1.78 450 2.90 450 4.22

525 0.88 525 1.43 525 2.04 525 3.35 525 4.82

600 1.00 600 1.58 600 2.31 600 3.77 600 5.42

- - 750 1.95 750 2.84 750 4.60 750 6.62

- - 1000 2.00 1000 3.72 1000 5.95 1000 8.62

- - - - 1250 4.61 1250 7.34 1250 10.62

M16 M20 M24 M30 M36weight weight weight weight weight

mm each kg mm each kg mm each kg mm each kg mm each kg

NOMINAL LENGTH (L) OF PREFERRED SIZES INCLUDING WEIGHTS

Non-standard lengths both shorter and longer than shown are available. Bolts available up to 1500mm long.

TOLERANCES ON NORMAL LENGTH (L)

NOMINAL LENGTH TOLERANCEmm mm

250 L 315 5.2

250


4/16

INDENTED FOUNDATION BOLTSDIN529 Pattern-E Grade: 4.6

VOID FORMERS

Conical, Polystyrene, Expanded Metal

When installing foundation bolting, specifically SSOX, instances arise

where a pocket or void is required around the bolt, to allow for easier

adjustment even after the concrete has been poured and set.

The former is simply placed over the inverted bolt, fitting flushwith the plate washer or anchorage. The formers can be left in

situ until the concrete has set or in the later stages of the concrete

setting when the former can be rotated*, breaking the bond with

the concrete and removed allowing for grouting around the anchor

after setting the bolts in their final position.

We offer three alternative products for this purpose in Polystyrene Tapered Cones, Hollow

Waxed Card Cones, cylindrical 'Expamet' wire mesh sleeves.

CONICAL BOLT BOXESWaxed cardboard void former

provides an easy method of bolt

alignment for steel frame buildings.

EXPANDED METAL

BOLT BOXESExpanded metal void former

designed for positioning hold-

ing down bolts where the bolt

box remains in the concrete.

When imperial indented foundation bolting (IFB) to BS.1494 was made obsolete, no

equivalent was issued and therefore, when they were converted over to metric sizes, they were

replaced by and manufactured in accordance with DIN.529, Pattern E.

AVAILABLE GRADESAll standard stocks are supplied in a mild steel (4.6) condition, however, any material can be

catered for including Stainless Steel, Alloy Steel (8.8) and most non-ferrous exotic materials.

INSTALLATION METHODS

The best results are obtained when IFB's are placed in situ when the concrete is poured. When

this is not possible or when fitting to existing structures, the hole required should be 6-10mm

larger than the maximum diameter (E), and not less than 10mm deeper than the portion of

embedment (D). The prepared grout mixture should then be poured into the cavity and the

bolt inserted, ensuring that the bolt is rotated to released trapped air pockets.

It is important to allow the grouting mix to set thoroughly before loading the bolt.

POLYSTYRENE BOLT BOXESThis Polystyrene void former offers

a low cost method of forming a

cavity in foundations for holding

down bolts. Core diameter for bolt

approximately 25mm.

We can also offer Circular Hollow Section tubes (CHS) in any diameter, loose or as part of a fabricated foundation base assembly,

or other forms of void former to individual specifications. * ONLY POLY & WAX TYPES, EXPAMET ARE PERMANENTLY EMBEDDED.

STANDARD RANGERECOMMENDED EMBEDMENT LENGTHS




M10 25 50 20 65 80 90

M12 30 60 24 78 96 108

M16 40 80 32 104 128 144

M20 50 100 40 130 160 180

M24 60 120 48 156 192 216

M30 75 150 60 195 240 270

ANOMINALDIAMETER

CTHREAD

LENGTH-mm

DBODY

LENGTH-mm

EBODY DIA.

mm

STATICLOADS

mm

LIVELOADS

mm

HEAVYVIBRATION

mm

300 225 229 75 x 225375 300 305 75 x 300

400 350 305 75 x 300

450 375 380 75 x 375

525 450 457 75 x 450

600 550 534 75 x 475

750 600 610 75 x 600

BOLT LENGTHmm

POLYSTYRENE BOLT BOXTO SUIT M12-M30 BOLTS

LENGTH-mm

CONICAL BOLT BOXTO SUIT M12-M30 BOLTS

LENGTH-mm

EXPANDED METALBOLT BOX

mm


5/16

HIGH STRENGTH FRICTION GRIPBS4395 Part 1 General Grade Bolts

HIGH STRENGTH FRICTION GRIPBS4395 Part 1 General Grade Bolts

Sometimes abbreviated to HSFG bolts. Bolts which are of high tensile strength used in

conjunction with high strength nuts and hardened steel washers in structural steelwork. The

bolts are tightened to a specified minimum shank tension so that transverse loads are

transferred across the joint by friction between the plates rather than by shear across the bolt

shank. Friction Grip Bolting provides a simple method of transmitting loads through a

structural joint, by the friction on the contact face, developed through the high clamping force

from correctly tightened high strength bolts.

HSFG are fitted in clearance holes and since the connection is designed to resist slip, they are

not subject to bearing or shear forces and therefore remain in virtual static tension throughout

their life.

CALCULATION OF CORRECT BOLT LENGTHS

The 'grip' length, i.e. the total thickness to be bolted, should be added to the length indicated

to the table below. This measurement allows for the inclusion of one nut and one flat round

hardened washer. An additional allowance should be made for the inclusion of a load indicat-

ing washer, nut faced washer or additional hardened washers by adding 3mm in each case.

DIRECT TENSION INDICATORS (DTI) BS4395/A959M

The load indicating washer is used under the head of the bolt

or under the nut in conjunction with a 'nut-faced' washer,

where the 'pips' flatten when tightened to a specific

gap, measured by a feeler gauge. This offers a precise

and fool proof method of ensuring the bolt is tightened to the correct shank tension.

The specific gap required for all HSFG Pt. 1 is a minimum of 0.4mm if used under the head. If

used under the nut in conjunction with nut-faced washers then the gap should be 0.25mm.

THROUGH HARDENED WASHER

The force under the head of a bolt or nut can exceed,

at high preloads, the compressive yield strength of the

clamped material. If this occurs excessive embedding

and deformation can result in bolt preload loss. To

overcome this hardened washers under the bolt headcan be used to distribute the force over a wider area

into the clamped material.

16 17.4 17.8 36 37 3 3.4

20 21.1 21.5 43 44 3.3 3.7

22 23 23.4 48.5 50 3.8 4.2

24 26 26.4 54.5 56 3.8 4.2

27 29 29.4 58.5 60 3.8 4.2

30 32.4 32.8 64.5 66 3.8 4.2




M12 1.75 22 8 11 22

M16 2.00 27 10 15 26M20 2.50 32 13 18 30

M22 2.50 36 14 19 34

M24 3.00 41 15 22 36

M27 3.00 46 17 24 39

M30 3.50 50 19 26 42

M33 3.50 55 21 29 45

M36 4.00 60 23 31 48

ANOMINALDIAMETER

THREADPITCH

CWIDTH ACROSS

FLATS-mm

DTHICKNESS OFHEX HEAD-mm

ETHICKNESS OF

NUT-mm

ADDITION TOGRIP LENGTH

NOMINALSIZE-mm

INSIDE DIAMETER BMin-mm Max-mm

OUTSIDE DIAMETER CMin-mm Max-mm

THICKNESS AMin-mm Max-mm

There are SIX main advantages using HSFG over standard hexagon bolting:

ECONOMY - Fewer HSFG are required than black mild steel bolts or rivets they are aneconomical alternative to turned barrel bolts requiring close tolerance holes.

RELIABILITY - Once tightened, the bolts will remain tight and maintain the permanentstrength of the joint.

SIMPLICITY - A minimum of skill is required in tightening and operators need only follow a

few simple rules. CONVENIENCE - Whether in the shop or on the site, HSFG bolts enable joints to be made

easily. Welding of site splices can be eliminated, avoiding the difficulties of welding inadverse weather conditions.

FASTER ERECTION - HSFG have been chosen for many projects on account of speed atwhich they enable steelwork to be fastened

EASE OF INSPECTION - When the (DTI) Load Indicator method of tightening is used avisual check is all that is usually required.


6/16

HIGH TENSILE BOLTS & SETSDIN931 & DIN933 Metric Hexagon

HIGH STRENGTH FRICTION GRIPDIN6914 (10.9), BS4395 Pt. 2 Higher Grade Bolts

HIGH STRENGTH FRICTION GRIP

Higher Grade bolts, equivalent to BS4395 Part 2, supplied in self-colour, electro zinc plated or

hot-dipped & spun-galvanized.

With DIN standard HSFG, no load indicator washers are required, however, double through

hard washers are normally used (DIN 6916).

We distribute and manufacture a vast range of standard, non-standard and special bolting

from a range that spans M6 to M76 diameters. Our stocks of finished bolts are available up to

M48 dia. x 300mm long, with diameters of M52 and above with lengths in excess of 300mm

up to 1500mm manufactured from our large stocks of blank forgings.

Stock materials include grades 4.6 (mild steel) and 8.8 (standard high tensile), 10.9 and 12.9

(higher-grade high tensile) and B7 (petrochemical) for all metric sizes. In addition to carbon

and alloy steels, we can offer all sizes in A2 (commercial) or A4 (marine grade) stainless steel,

just two types among the range of non-ferrous materials we can supply.




NOMINAL DIA. (A) M12 M16 M20 M22 M24 M27 M30

THREAD PITCH 1.75 2.0 2.5 2.5 3.0 3.0 3.5

ACROSS FLATS (E) 22 27 32 36 41 46 50

HEAD DEPTH (D) 8 10 13 14 15 17 19

C (AT L ) 21(40) 26(70) 31(85) 32(85) 34(85) 37(95) 40(95)

C (AT L >) 23(40) 28(70) 33(85) 34(85) 37(85) 39(95) 42(95)

ASSEMBLY PRE-LOAD 50kN 100kN 160kN 190kN 220kN 290kN 350kN

TORQUE (STEEL) 120Nm 350Nm 600Nm 900Nm 1100Nm 1650Nm 2200Nm

TORQUE (HOT D.G.) 100Nm 250Nm 450Nm 650Nm 800Nm 1250Nm 1650Nm

NOMINAL DIA. M12 M16 M20 M22 M24 M27 M30

THREAD PITCH 1.75 2.0 2.5 2.5 3.0 3.0 3.5

ACROSS FLATS-mm 22 27 32 36 41 46 50THICKNESS-mm 10 13 16 18 19 22 24

NOMINAL SIZE M12 M16 M20 M22 M24 M27 M30

INSIDE DIA.-mm 13 17 21 23 25 28 31

OUTSIDE DIA.-mm 24 30 37 39 44 50 56

THICKNESS-mm 3 4 4 4 4 5 5

HIGH-STRENGTH STRUCTURAL BOLTS: DIN 6914, ISO 7412, MEN 551, ANSI B18.2.3.7M

HIGH-STRENGTH STRUCTURAL NUTS: DIN 6915, ISO 7414, MEN 5512

HIGH-STRENGTH STRUCTURAL WASHERS: DIN 6914, ISO 7412, MEN 551, ANSI B18.2.3.7M

M6 1.0 0.75 10 11.5 4

M8 1.25 1.0 13 15 5.5

M10 1.5 1.25 17 19.6 7

M12 1.75 1.25 19 21.9 8

M14 2.0 1.5 22 25.4 9

M16 2.0 1.5 24 27.7 10

M18 2.5 1.5 27 31.2 12

M20 2.5 1.5 30 34.6 13

M22 2.5 1.5 32 36.9 14

M24 3.0 2.0 36 41.6 15

M27 3.0 2.0 41 47.3 17

M30 3.5 2.0 46 53.1 19

M33 3.5 2.0 50 57.7 21

M36 4.0 3.0 55 63.5 23

M39 4.0 3.0 60 69.3 25

M42 4.5 3.0 65 75.1 26

M45 4.5 3.0 70 80.8 28

M48 5.0 3.0 75 86.6 30

M52 5.0 4.0 80 92.4 33

M56 5.5 4.0 85 98.1 35

ANOMINALDIAMETER

THREADPITCH

ISO COARSE

THREADPITCH

ISO FINE

EWIDTH ACROSS

FLATS-mm

FWIDTH ACROSS

CORNERS-mm

DTHICKNESS OFHEX HEAD-mm


7/16


8/16

D M6 M8 M10 M12 M16 M20 M22 M24

TIE-RODS & TIE BARSMetric & Imperial

ENGINEERING STUDSDIN938 & DIN939: Metric

PRODUCT SPECIFICATION

Engineering studs are available in several

standards determining the thread lengths of

both the metal end and nut end. The metal

end B is normally taken off the overall giving

the nominal length L. The overall length

determines thread lengths for the nut end.Available in all standard grades. All other

sizes are made to order up to M100 dia.


These round steel bars can have either clean-sawn or cropped ends. Intended for use in

expansion or contraction joints, a wide range of standard sizes are available for immediate

delivery.

Available in mill length to 12,000mm/40ft and up to 100mm/4inch diameters, the DinStock

tie-rods may be cut to a specified length before shipment to the jobsite. We can also offer roll-

threading on effective diameter bars M6-M39.

AVAILABLE GRADES

We hold stocks of mild steel (4.6), high tensile (8.8), and Stainless Steel Grade A2 & A4 to

cater for immediate same-day manufacture requirements. Other materials we offer include

Brass, B7, B8, and other exotic non-ferrous materials.

When ordering DinStock tie-rods it is important to specify, the diameter (A), the thread

length (B1 & B2), the overall length (C), material grade, and finally the thread form.

Our friendly, helpful staff will be happy to assist you with your specific requirements. Please

call our team on 01952-676700 for more information.

CORROSION PROTECTION

An important element in the long-term durability of any tie-rod installation is corrosion

protection. A number of possibilities exist depending on site conditions and degree of

exposure. Examples of successful corrosion protection currently in use are:

Electro Zinc Plating Galvanizing Sherardizing Epoxy Coating DENSO Taped, Pasted, and PVC Wrapped

ATTENTION: when ordering studs according to DIN the diameter D x the effective length L has to be stated e.g. stud M10 x 65 -DIN 939 where L = 65mm is the working length and B 1 = 12mm the metal end. The total length is 65 + 12 = 77mm. Thethread length on the nutside B2 = 26mm. The screw-in threaded end has been made with tolerance Sk6, acc. to DIN 13-51,meaning heavy fit, and prevents loosening of studs during disassembly. Studs acc. to DIN 939 with a metal end 1,25D havemany applications, among others is cast-iron.

(1) Depending on availability class 5.6 can be supplied. (2) L 125mm. (3) 125mm < L 200mm. (4) The threadlength on thenutside B2 at this length deviates and can be calculated with following formula: B2=L-(X1+3).




P 1.0 1.25 1.5 1.75 2.0 2.5 2.5 3.0

B1 1D 6 8 10 12 16 20 22 24

B2 18 22 26 30 38 46 50 54

X1 2.5 3.2 3.8 4.3 5 6.3 6.3 7.5

D M6 M8 M10 M12 M16 M20 M22 M24

B1 1,25D 7.5 10 12 15 20 25 28 30

B2 (1) 18 22 26 30 38 46 50 54

B2 (2) 24 28 32 36 44 52 56 60

X1 2.5 3.2 3.8 4.3 5 6.3 6.3 7.5

M6 M8 M10 M12 M16 M20 M22 M24

STANDARD RANGE

20(4) 20(4) 20(4) 25(4) 35(4) 40(4) 50(4) 50(4)

25 25(4) 25(4) 30(4) 40(4) 45(4) 60(4) 60(4)

30 30 30(4) 35(4) 45(4) 50(4) 70 70

35 35 35 40 50 55(4) 80 80

40 40 40 45 55 60 90 90

45 45 45 50 60 65 100 100

50 50 50 55 65 70 110 110

55 60 55 60 70 75 120 120

65 60 65 75 80 140 13070 65 70 80 90 140

70 75 90 100 150

80 100 110 160

90 120 180

100 140 200

ENGINEERS STUDS - METAL END 1D - STEEL: DIN938

ENGINEERS STUDS - METAL END 1,25D - STEEL: DIN939


9/16

HEXAGON CONNECTION NUTSDIN6334 Mild Steel & High Tensile

Hexagon Connectors, also commonly known as Studding Connectors or Couplers, are

predominantly used as a method of extending tie-rods and allthread bars. The rule concerning

their installation is simply that 50% of the connector should be engaged on each part being

joined to ensure the tensile strength is maintained.

Most connectors are manufactured from mild steel hexagon bar, in some cases round bars,

being drilled and tapped 100% of its length internally. Whilst it is advised to seek a higher

strength material grade when applications involve the extension or connection of 8.8 grades

and higher, independent tests have been performed to ensure compatibility with use on highergrades including 8.8.

All of our standard range of connectors will be supplied as Grade 8 or will be advised that

they are compatible for use up to 8.8 grades. We stock a comprehensive range of metric sizes

up to M36 with sizes M39 and above manufactured to order with a few days lead time.

AVAILABLE GRADES

All available in self-colour, zinc plated, and galvanized tapped oversize from stock. Other

finishes and materials are available on request.

Bolt Extensions are also available, but supplied as a headed hexagon blank, drilled and

tapped internally. Dimensions not shown.




Hexagon Connection Nut Bolt Extension

M6 10 18 M22 32 66

M8 13 24 M24 36 72

M10 17 30 M27 41 81

M12 19 36 M30 46 90M16 24 48 M33 50 99

M20 30 60 M36 55 108

ANOMINALDIAMETER

EWIDTH ACROSS

FLATS-mm

COVERALL

LENGTH-mm

ANOMINALDIAMETER

EWIDTH ACROSS

FLATS-mm

COVERALL

LENGTH-mm

ALLTHREAD/STUDDINGDIN975 Steel & Non-ferrous

B7HIGH TENSILE 8.8MILD STEEL 4.6


Allthread or studding can be made into any

length required. For short pieces we can offer a

cropped & roll threaded option. For longer

lengths we provide a cutting service from our

standard diameters M8-M64 in 1000 and

3000mm stock lengths. We also offer alldiameters, grades and finishes in angled cut

studs for resin anchor applications.

AVAILABLE GRADES & THREAD FORMS

All available in Self Colour (BARE), Bright Zinc Plated (BZP), Galvanized (HDG), and

Sheradized. Materials available include, Mild Steel, High Tensile 8.8, 10.9 & B7, Brass, and

Stainless Steel. Other finishes and materials are available on request.

Available in a variety of thread types including Metric (ISO and Fine Pitch), Left Hand, BSW,

BSF, UNC, UNF, Diwydag Speedbars, and Resin Anchor Studs.

DIAMETER BARE BZP HDG BARE BZP HDG BARE KG/MTR

STANDARD RANGE

M6 0.17

M8 0.31

M10 0.49

M12 0.71

M14 0.97

M16 1.31

M18 1.62

M20 2.05

M22 2.52

M24 2.96

M27 3.83

M30 4.68

M33 5.76

M36 6.80

M39 8.08

M42 9.33

M45 10.82

M48 12.25

M52 14.54

M56 16.82

M60 19.80

M64 22.20

M68 25.30

M72 28.50

M76 32.00


10/16

PITCH 3.0 3.0 4.0 4.0 4.0 4.0 5.0 5.0 5.0

NOMINAL DIA.(A)

M10 M12 M14 M16 M18 M20 M22 M24 M26

STANDARD RANGE

TRAPEZOIDAL THREADED RODS & NUTS

DIN975-5.8In Accordance to DIN103 and DIN7168-2 Tolerance Class U





We offer a range of ACME allthreads in

1000mm, 1500mm and 3000mm bar

lengths, both right-hand and left-hand

threads in Steel and Stainless Steel. These

bars are coarse trunk threaded enabling

fast fitting and running nuts. Nuts areavailable in both steel and bronze in

round and steel hexagon.


End fittings are Quenched and Tempered,

bodies heat treated by normalising. Hooks

are forged with greater cross sectional

area that results in a stronger hook with

better fatigue properties. Turnbuckle eyes

are forged elongated, by design, tomaximise easy attachment in system and

minimise stress in the eye. Turnbuckles

can be supplied proof tested with

certificates if requested at time of order.

TURNBUCKLESDIN1480, BS4429

Standard Pattern

BS4429 Pattern


Available in three styles: Hook & Eye,

Hook & Hook, and Eye & Eye. Standard

diameters range from M6-M33 diameter,

which come as standard in a BZP finish.

Also available in Stainless Steel. Typical

hardness levels, Tensile Strengths and

Ductility Properties are available for all

sizes, on request.

A

NOMINALDIAMETER

B

BODYLENGTH-mm

L

CLOSEDLENGTH-mm

L

OPENLENGTH-mm

C

HOOKCAPACITY-mm

D

EYE CAPACITYmm

WEIGHT

PER 100KGS

STANDARD RANGE

M12 191 229 18.7 10 13

M16 241 305 23.7 11 16

M20 241 305 29.7 16 20

M22 229 305 31.6 13 21

M24 229 305 35.4 17 25

M27 229 339 40.4 21 33

M30 229 339 45.4 21 33

ANOMINALDIAMETER

BINTERNAL BODY

LENGTH-mm

COVERALL

LENGTH-mm

DBS4429 PATT.

WIDTH A/F-mm

ESTNDRD PATT.

mm

FSTNDRD PATT.

mm

M6 110 160 240 9 8 11.0

M8 110 165 270 10 10.5 20.0

M10 125 200 320 14 13 28.0

M12 125 230 350 16 16 43.0

M16 170 285 450 22 19 100.0

M20 200 327 520 24 21 160.0

M24 255 397 647 28 26 280.0

M30 255 440 592 31 33 410.0

M33 295 460 620 36 39 600.0


Screwed bar and nuts in numerous sizes

including Trapezoidal from 10mm to 50mm

diameter in left or right hand thread. Stocks

constantly expand. Steel or Bronze Round

Nuts. According to DIN 103; Steel ST 50-2;

Bronze Rg1. Most sizes ex stock. Also

available: bronze and stainless steel. Full

data sheet available on request.

PITCH 3.0 3.0 4.0 4.0 4.0 4.0 5.0 5.0 5.0

DIAMETER (B) 22 26 30 36 40 45 45 50 50

THICKNESS (C) 15 18 21 24 27 30 33 36 39

NOMINAL DIA.(A)

Tr10 Tr12 Tr14 Tr16 Tr18 Tr20 Tr22 Tr24 Tr26

PITCH 5.0 6.0 6.0 6.0 7.0 7.0 8.0 9.0

DIAMETER (B) 60 60 62 75 80 80 90 100

THICKNESS (C) 42 45 48 54 60 66 75 90

NOMINAL DIA.(A)

Tr28 Tr30 Tr32 Tr36 Tr40 Tr44 Tr50 Tr60

PITCH 5.0 6.0 6.0 6.0 7.0 7.0 8.0 9.0

NOMINAL DIA.(A)

M28 M30 M32 M36 M40 M44 M50 M60


11/16

AVAILABLE THREAD FORMS

BSW and Metric threads can be supplied from our range of

dynamo eyebolts. Collared eyebolts and eyebolts with oval

links are not illustrated but are available in a number of sizes

and capacities, specifications available on request.

EYENUTSDIN582 Metric Coarse Thread, Tested & Certified

DYNAMO EYEBOLTSBS4278 Table 3:1984, Tested & Certified


Collared or dynamo eyebolts are available for many different uses. Dynamo eyebolts make

provision for vertical lift only; if used in pairs a spreader frame is required. Capacities range

from 0.10 to 3.20 tonnes. Collared eyebolts (not shown) make provision for angled lifts (i.e.

using a two leg sling) recommended not to exceed 45 from the vertical. Capacities range

from 0.10 to 20 tonnes (metric sizes start at 0.10 tonne).

APPLICATION & USE

Dynamo eyebolts may be used up to the marked safe working load (SWL) for axial lifting only.

For non-axial loading ensure the SWL is reduced by the appropriate factor. In non-axial

loading the load should be applied within 5 of the plane of the eye.

STANDARDRANGE

STANDARD

RANGE




0.10 6 22 9 27 18 17 5 0.07

0.15 8 22 9 27 18 17 5 0.07

0.25 10 22 9 27 18 17 5 0.07

0.32 12 22 9 27 18 17 5 0.07

0.50 14 32 13 41 28 29 9 0.24

0.63 16 29 11 34 23 23 6 0.14

1.00 18 40 15 47 32 32 9 0.40

1.25 20 40 15 47 32 32 9 0.40

1.60 22 44 17 53 35 35 14 0.61

2.00 24 51 19 60 40 40 12 0.80

3.20 30 64 24 76 51 51 14 1.72

VERTICALSWL

tonnes

Amm

Cmm

Dmm

Emm

Gmm

Hmm

WEIGHTEACHkgs

Bmm

0.15 8 22 9.5 27 100 19 6 0.11

0.25 10 22 9.5 27 100 19 6 0.12

0.32 12 29 11 35 100 25 8 0.17

0.63 16 32 13 41 114 29 9.5 0.35

1.25 20 41 16 54 127 35 11 0.60

2.00 24 51 19 64 127 41 13 1.10

VERTICALSWL

tonnes

Amm

Cmm

Dmm

Emm

Gmm

Hmm

WEIGHTEACHkgs

Bmm STANDARD

RANGE

0.5 1/2 1/2 1.1/8 3/ 4 1.3/ 43 .1/16 7/8 1.18

0.8 5/8 1/2 1.1/8 3/ 4 1.3/ 43 .1/16 7/8 1.25

1.2 3/4 5/8 1.1/2 1.1/8 1.7/8 3.3/8 1 2.15

1.6 7/8 5/8 1.1/2 1.1/8 1.7/8 3.3/8 1 2.28

2.2 1 3/4 1.3/4 1.3/8 2.1/8 4.1/8 1.1/2 3.30

VERTICALSWL

tonnes

Ainch

Cinch

Dinch

Einch

Finch

Ginch

WEIGHTEACHkgs

Binch

STANDARDRANGE

140 8 36 20 8.5 20 8 0.05

230 10 45 25 10 25 10 0.11

340 12 54 30 11 30 12 0.16

700 16 63 35 13 35 14 0.25

1200 20 72 40 16 40 16 0.34

1800 24 90 50 20 50 20 0.77

3600 30 108 65 25 60 24 1.30

5100 36 126 75 30 70 28 2.10

7000 42 144 85 35 80 32 3.58

8000 48 166 100 40 90 38 5.12

VERTICALSWL

tonnes

Amm

Cmm

Dmm

Emm

Smm

WEIGHTEACHkgs

Bmm


DinStock offers a variety of high quality eyenuts in Carbon Steel as well Stainless Steel

(untested). A wide range of general lifting equipment including wire rope grips, thimbles,

hooks, shackles, rigging screws, and turnbuckles are available. For detailed product

information, please call our sales team on 01952-676700.

In assessing the safe working load (SWL), it is assumed that the stud onto which the eyenut isscrewed is of equal or higher grade and the thread is the same or more in length. To clearly

order eyenuts correctly you should specify: thread diameter (A), type of thread, safe working

load (VERTICAL SWL), and hole diameter (E). Certifications are available upon request.

AVAILABLE THREAD FORMSA variety of thread types including BSF, UNC, UNF are also

available from our vast range. Bownuts manufactured to

BS3974 Part 1 1974 are also available in both BSW and

Metric threads.

Eyenuts to DIN 582 - Metric Coarse ThreadTested & Certified

Eyenuts - BSW ThreadTested & Certified

PREVAILING TORQUE NUTS NYLOCHEXAGON NUTS


12/16

Proof Load Stress

Kgf/mm2

Proof Load Stress

N/mm

2

Brinell Hardness HB

Maximum

PREVAILING TORQUE NUTS NYLOCDIN985:1987 Zinc Plated & Galvanized

HEXAGON NUTSDIN555 & DIN934:1987 Metric Grades 5, 8, 10 & 12




MECHANICALPROPERTIES

5 8 10 12


We carry a wide range of metric hexagon nuts in Grades 5, 8, 10, and 12. These are

DIN555/DIN934 in M6 thru M72 diameter. We have comprehensive stocks of most types of

nut including: DIN 934 Full Nuts (Metric Fine), DIN 936 Lock Nuts, DIN 982 Nyloc Nuts, DIN

985 Nyloc Nuts, DIN 6334 Connector Nuts, Castle Nuts, Slotted Nuts, and CNC Machined

Specials. Finished in Self-Colour, Zinc Plated, Galvanized, or Sheradized. Comprehensive

stocks of imperial diameters and thread forms are also available from stock. For technical

information, please call our customer support line on 01952-676700.

40 80 100 120

392 785 985 1177

302 302 335 353

PROPERTY CLASS PRODUCT SPECIFICATION

The bolt threads bite into the nylon insert to

prevent nuts from working loose. Not

recommended for use in high temperatures.

Once removed, it is recommended to re-

install new nuts for best retention of locking

properties. Note: all galvanized nyloc nutsare tapped oversize by 0.4mm to ensure free

fitting to galvanized bolting.

PITCH 0.5 0.7 0.8 1.0 1.25 1.5 1.75 2.0 2.0 2.5 2.5 2.5 3.0

ACROSS FLATS (B) 5.5 7 8 10 13 17 19 22 24 27 30 32 36

THICKNESS (C) 4 5 5 6 8 10 12 14 16 18.5 20 22 24

NOMINAL DIA.(A)

M3 M4 M5 M6 M8 M10 M12 M14 M16 M18 M20 M22 M24

PITCH 3.0 3.5 3.5 4.0 4.0 4.5 4.5 5.0 5.0 5.5 5.5 6.0

ACROSS FLATS (B) 41 46 50 55 60 65 70 75 80 85 90 95

THICKNESS (C) 27 30 33 36 39 42 45 48 52 56 60 64

NOMINAL DIA.(A)

M27 M30 M33 M36 M39 M42 M45 M48 M52 M56 M60 M64

METRIC FINE NYLOC NUTSZinc Plated

FINE PITCH 1.0 1.25 1.5 1.5 1.5 1.5 2.0 1.5 2.0 2.0 2.0 2.0 3.0

EXTRA FINE PITCH 1.0 1.25 1.5 1.5* 1.5* 1.5* 1.5* 1.5*

NOMINAL DIA.(A)

M8 M10 M12 M14 M16 M18 M20 M22 M24 M27 M30 M33 M36

FINE PITCH 3.0 3.0 3.0 3.0

EXTRA FINE PITCH 1.5* 1.5* 1.5*

NOMINAL DIA.(A)

M39 M42 M45 M48STANDARD RANGE

M6 1.0 0.75 10 11.05 5

M8 1.25 1.0 13 14.38 6.5

M10 1.5 1.25 17 18.90 8

M12 1.75 1.5 19 21.10 10

M14 2.0 1.5 22 24.49 11

M16 2.0 1.5 24 26.75 13

M18 2.5 2.0 27 29.56 15

M20 2.5 2.0 30 32.95 16

M22 2.5 2.0 32 35.03 18

M24 3.0 2.0 36 39.55 19

M27 3.0 2.0 41 45.20 22

M30 3.5 2.0 46 50.85 24

M33 3.5 2.0 50 55.37 26

M36 4.0 3.0 55 60.79 29

M39 4.0 3.0 60 66.44 31

M42 4.5 3.0 65 71.30 34

M45 4.5 3.0 70 76.95 36

M48 5.0 3.0 75 82.60 38

M52 5.5 3.0 80 88.25 42

M56 5.5 4.0 85 45

M60 6.0 4.0 90 48

M64 6.0 4.0 95 51

M68 6.0 4.0 100 55

M72 6.0 4.0 105 58

B

BODYDIAMETER

THREAD

PITCHISO METRIC

THREAD

PITCHMETRIC FINE

B

WIDTH ACROSSFLATS-mm

C

WIDTH ACROSSCORNERS-mm

D

THICKNESS OFNUT-mm

WASHER PLATESFLAT ROUND WASHERS


13/16


All DIN125 and BS4320 form A-C washers

are manufactured to precision tolerances and

are termed bright mild steel. Available as

standard in BZP finish. All DIN125 and

BS4320 form E-G washers are manufactured

to wider tolerances and are termed as blackstandard mild steel. Available in all finishes,

Self-Colour, BZP, Galvanized, and Sheradized.

We stock flat washers in many types - bright

steel, stainless steel, brass, copper, aluminium and fibre, to suit traditional and developing

high technology industries whose requirements cover both metric and imperial dimensions.

DinStock flat washers conform to British, European and American standards, including

BS4310, BS4320, DIN125, DIN126, DIN128 and DIN137. Not only can we offer all types of

standard flat washer; we can also manufacture specials for non-standard applications. Other

standard washers available from stock include: chamfer washers, mudguard repair washers,

spring lock washers, and serrated lock washers.

WASHER PLATESMild Steel

FLAT ROUND WASHERSDIN125 & BS4320 Metric Mild Steel




Form A Form B

STANDARD RANGE

M6 10.0 x 1.0 12.8 x 0.8 12.5 x 1.0 12.5 x 1.6 18.0 x 2.0

M8 17.0 x 1.6 17.0 x 1.0 21.0 x 1.6 17.0 x 1.6 21.0 x 1.6 24.0 x 2.0

M10 21.0 x 2.0 21.0 x 1.25 24.0 x 2.0 21.0 x 2.0 24.0 x 2.0 30.0 x 2.5

M12 24.0 x 2.5 24.0 x 1.6 28.0 x 2.5 24.0 x 2.5 28.0 x 2.5 36.0 x 3.0

M14 28.0 x 2.5 28.0 x 1.6 30.0 x 2.5 28.0 x 2.5 30.0 x 2.5 42.0 x 3.0

M16 30.0 x 3.0 30.0 x 2.0 34.0 x 3.0 30.0 x 3.0 34.0 x 3.0 48.0 x 4.0

M18 34.0 x 3.0 34.0 x 2.0 37.0 x 3.0 34.0 x 3.0 37.0 x 3.0 54.0 x 4.0

M20 37.0 x 3.0 37.0 x 2.0 39.0 x 3.0 37.0 x 3.0 39.0 x 3.0 60.0 x 5.0

M22 39.0 x 3.0 39.0 x 2.0 44.0 x 3.0 39.0 x 3.0 44.0 x 3.0 66.0 x 5.0

M24 44.0 x 4.0 44.0 x 2.5 50.0 x 4.0 44.0 x 4.0 50.0 x 4.0 72.0 x 6.0

M27 50.0 x 4.0 50.0 x 2.5 56.0 x 4.0 50.0 x 4.0 56.0 x 4.0 81.0 x 6.0

M30 56.0 x 4.0 56.0 x 2.5 60.0 x 4.0 56.0 x 4.0 60.0 x 4.0 90.0 x 8.0

M33 60.0 x 5.0 60.0 x 3.0 66.0 x 5.0 60.0 x 5.0 66.0 x 5.0 99.0 x 8.0

M36 66.0 x 5.0 66.0 x 3.0 72.0 x 5.0 66.0 x 5.0 72.0 x 5.0 108.0 x 10.0

M39 72.0 x 6.0 72.0 x 3.0 72.0 x 6.0 77.0 x 6.0 117.0 x 10.0M42 78.0 x 7.0 78.0 x 4.0 78.0 x 7.0

M45 85.0 x 7.0 85.0 x 4.0 85.0 x 7.0

M48 92.0 x 8.0 92.0 x 6.0 92.0 x 8.0

M52 98.0 x 8.0 98.0 x 8.0

M56 105.0 x 9.0

M60 110.0 x 9.0

M64 115.0 x 9.0

M68 120.0 x 10.0

M72 125 x 10.0

M76 130.0 x 10.0

ABOLT DIA.

B x CFORM A-mm

B x CFORM B-mm

B x CFORM C-mm

B x CFORM E-mm

B x CFORM F-mm

B x CFORM G-mm


All DinStock Square Plate Washers are

supplied in self colour, BZP and galvanized

finish. Other finishes and materials are

available on request. All central diameters

are to suit bolt sizes and are manufactured

with a 2mm oversize clearance hole forboth round and square. Square holed

plates suitable for use with SSOX BS7419

(page 4) and Cup Square DIN603.

STANDARD RANGE

40 3 M6-M12

40 5 M6-M20

50 3 M6-M24

50 6 M6-M24 M12-M16

75 6 M12-M30 M12-M24

75 10 M12-M30 M12-M30

100 6 M12-M24 M12-M30

100 8 M16-M30 M16-M30100 10 M12-M36 M12-M36

100 12 M16-M36 M12-M48

100 15 M16-M36 M12-M48

120 10 M16-M30 M16-M30

120 15 M16-M30 M16-M30

120 20 M20-M30 M20-M30

150 10 M16-M42 M12-M48

150 12 M16-M30 M16-M30

150 15 M16-M42 M12-M48

150 20 M20-M36 M20-M36

APLATE WIDTHSQUARE-mm

BPLATE THICKNESS

mm

RBOLT DIAMETER

mm

SBOLT DIAMETER

mm

R ou nd H ol e P at te rn S qu ar e H ol e P at te rn

AVAILABLE PATTERNS

In addition to the standard range above we also supply a range of multiple holed plate

washers. All plates are available with round or square holes, and locking cap if required for

use with hexagon bolts.

A GUIDE TO TORQUE VALUESA GUIDE TO TORQUE VALUES


14/16

Flowl/s x 2119 = cu.ft/mincu.ft/min x 0472 = l/s

Powerhp x 0746 = kW

kW =

A GUIDE TO TORQUE VALUESMetric and Imperial Bolts

A GUIDE TO TORQUE VALUESMetric and Imperial Bolts




It should be understood that the subject of torque tensionloading is beyond the scope of this catalogue. The informationhere supplied is an acceptable guide for normal conditions;for critical applications, however, further information andresearch will be necessary.

In preparing this guide to torque values, the following basicassumptions have been made:(a) bolts and nuts are new, standard finish, uncoated and

not lubricated*(b) the load will be 90% of the bolt yield strength(c) the coefficient of friction () is 0,14(d) the final tightening sequence is achieved smoothly and

slowly, until the torque has been obtained.

* If lubrication has been applied to the bolt and/or the nut(other than the normal protective oil film), multiply therecommended torque by the appropriate factor shown in thetable.Example: Bolt and nut are both phosphated; required torque= torque recommended x 075.

METRIC COARSE METRIC FINE

mm 4.6 5.6 8.8 10.9 12.9 8.8 10.9 12.9

GRADE R GRADE S GRADE T GRADE X SAE 8

in BSW BSF UNC UNF UNC UNF UNC UNF UNC UNF

1/4 8 9 9 11 10 12 15 17 14 16

5/16 16 18 19 22 21 24 31 34 28 31

3/8 29 32 35 39 38 43 55 62 51 57

7/16 47 51 56 62 62 68 89 98 81 90

1/2 70 77 85 96 94 106 135 151 124 1395/8 144 154 171 192 188 212 269 303 248 279

3/4 255 268 303 336 333 369 477 529 439 487

7/8 411 432 488 536 537 590 769 844 708 778

1 617 652 731 797 804 876 1151 1255 1060 1156

1.1/8 876 930 1036 - 1140 - 1632 - 1503 1679

1.1/4 1235 1303 1460 - 1606 - 2300 - 2119 2336

1.1/2 2146 2278 2541 - 2795 - 4002 - 3687 4129

RECOMMENDED MAXIMUM BOLT LOADS AND TORQUE VALUES (IMPERIAL THREADS)

M6 4.5 5.5 12 18 21 13 20 23

M8 11 14 30 44 51 32 47 55

M10 22 27 59 87 102 62 92 107

M12 38 48 103 152 178 113 166 194

M14 61 77 164 242 283 179 263 308

M16 96 120 257 377 442 273 401 470

M18 132 166 365 519 608 410 584 684

M20 188 235 517 737 862 574 818 957

M22 256 320 704 1002 1173 773 1101 1289

M24 325 406 894 1274 1491 973 1386 1622

M27 475 594 1308 1863 2181 1414 2014 2357

M30 646 807 1777 2531 2962 1967 2802 3278

M33 879 1099 2418 3444 4030 2652 3777 4420

M36 1129 1411 3106 4423 5176 - - -

M39 1461 1827 4019 5724 6699 - - -

RECOMMENDED MAXIMUM BOLT LOADS AND TORQUE VALUES (METRIC THREADS)

Torquelbf.ft x 136 = NmNm x 0737 = lbf.ft

Forcelbf.ft x 136 = Nm

Nm x 0737 = lbf.ft

Pressurelbf/in2x 0069 = barbar x 14504 = lbf/in2

Conversion Factors

Nm x rev/min9546

Formulae

Accepted formulae relating torque and tension, basedon many tests are:-

M=

or for metric sizes:-

M=

These formulae may be used for bolts outside the rangeof the tables.

P x D60

M = torque lbf.ftP = bolt tension lbfD = bolt dia. ins

M = torque NmP = bolt tension NewtonsD = bolt dia. mm

P x D5000

Lubrication Factor

Surface

condition

ofnut

Self 1.00 1.00 0.80 0.90

Zinc 1.15 1.20 1.35 1.15

Cadmium 0.85 0.90 1.20 1.00

Phosphateand oil

0.70 0.65 0.70 0.75

Zincwith wax

Surface condition of bolt

Self Zinc Cadmium Phosphate

0.60 0.55 0.65 0.55

Why is torque necessary?Torque is a 'turning' or twisting force and differs from tension which iscreated by a straight pull. However, we use torque to create tension.As can be seen, once the nut and bolt are tightened the two platesare clamped together. The thread angle in the bolt converts theforce applied into tension (or stretch) in the bolt shank. Theamount of the tension created in the bolt is critical.

When a bolt is tensioned correctly it is working at its optimumefficiency and will resist coming undone. However, if thetension is too low, the nut could vibrate or workloose. If the tension is too high (over-stretched),

the bolt could break.

Every bolt has a correct optimum torque/tensionfigure for each fastening application. It isimportant to have these figures available so thatthe end product will be safe, efficient and economical.

It should also be realised that some torque wrenches are "lengthdependent" which means that the actual torque applied to thefastener varies if the hand position on the wrench is varied - evenwith the wrench is preset! This occurs if the pivot point of the wrenchmechanism is not coincidental with point of application of torque.

BS4395 PART 1 BS4395 PART 2

MINIMUM SHANK TORQUE* SHANK TENSION KN TORQUE*

mm TENSION (KN) Nm lbf.ft MIN 85% (KN) MAX 115% (KN) Nm lbf.ft

M12 49.4 130 96 - - - -

M16 92.1 324 239 103.9 140.5 366 270

M20 144 634 467 161.8 219 712 525

M22 177 857 633 200.3 270.8 969 715

M24 207 1093 806 233.4 316 1232 909

M27 243 1390 1025 303 409 1800 1326

M30 286 1888 1392 370 500 2442 1801

M33 - - - 459 621 3332 2458

M36 418 3310 2442 - - - -

HIGH STRENGTH FRICTION GRIP BOLTS BS4395 Parts 1 & 2. THEORETICAL TORQUEVALUES TO MEET REQUIREMENTS OF BS4604 Parts 1 & 2.

These torque values are for guidance only. Always check with the equipment/bolt manufacturer. In the interest of continuedproduct development, DinStock reserves the right to modify the data and specifications contained in this catalogue without priornotice. * TORQUE TO GENERATE 110% OF MINIMUM SHANK TENSION.

Maximum Torque lbf.ft for bolts BS1768, BS1083.

Approximate Torque Nm to BSEN20898-1, ISO898/1.

SURFACE COATINGSMECHANICAL PROPERTIES


15/16

Marking of bolts, screws and studsMarking of all property classes is obligatory for hexagon bolts and screws

with nominal diameters d 5mm, preferably on top of the head.

Marking of property classes 8.8 is obligatory for hexagon socket head cap

screws with nominal diameter d 5mm, preferably on the top of the head.

When low carbon martensitic steels are used for class 10.9, the symbol 10.9shall be underlined: 10.9.

Studs shall be marked for property classes 8.8 and with nominal diameter d

5mm. For studs with interference fit, the marking shall be at the nut end.

Alternative identification with symbols is permissible.

Left-hand thread shall be marked for nominal diameters d 5mm with an anti-clockwise rotating arrow either on the top of the

head or the point.

The trade (identification) marking of the manufacturer is mandatory on all products, which are marked with property classes.

For other types of bolts and screws the same marking system shall be used. For special components marking will be as agreed

between the interested parties.

SURFACE COATINGSBasic Descriptions and Benefits

MECHANICAL PROPERTIESSteel Bolts, Screws and Studs




Hot Dip Galvanizing BS729The immersion of steel in molten zinc creates a toughprotective coating which is metallurgically bonded to the steel.It also has amazing electrochemical properties whereby thesteel is still protected from corrosion even where thegalvanizing has been chipped or scratched. Being animmersion process all internal surfaces of a fabrication receivethe same level of protection, giving hot dip galvanizing itsreputation for a 'Heineken' effect.Externally exposed

galvanizing on heavy steelwork is now lasting an average of40 years in the UK, with lifetime continuing to increase as acidrain concentrations decline. Over 730,000 tonnes of steel werehot dip galvanized in the UK alone in 1999.

Zinc Electroplating BS1706Widely used by industry in general, and automotivemanufacturers in particular, electrodeposited zinc givessacrificial protection to the underlying iron or steel, that is thezinc corrodes in preference to the underlying metal. This hasthe additional benefit that steel exposed at cut or abradedareas will not easily rust.

Bright zinc gives reasonable protection at fairly low thicknesses,typically 8, so is ideal for small components such as machinescrews with fine threads.

10 Zinc Average thickness. The relative corrosionperformance of coatings is often assessed using neutral saltspray testing. During electroplating, hydrogen is evolved at thesurface of components and can embrittle hardened steel

components.

Sherardizing BS4921Sherardizing is a diffusion process in which particles areheated in the presence of zinc dust. The process is normallycarried out in a slowly rotating closed container attemperatures ranging from 320-500 degrees centigrade.

The resultant zinc/iron alloyed coating is subsequently zincphosphated or chromated, resulting in a clean, passivated,matt grey surface. The coating closely follows the contours ofthe base material and uniform coatings are produced onarticles, including those of intricate shapes. Carbon steels, lowalloy steels, sintered steels, malleable grey iron and cast ironare suitable for sherardizing. The process does not give rise tohydrogen embrittlement.

Sherardizing benefits include: Long Term corrosion Protection,Coating Thickness range available 15-80m, Salt SprayResistance, Sherardizing - 96 hours, Sherardizing 2000 - 500hours, Damage Resistant, and Uniform Coating.

DACROMET 500 LCFasteners are subject to ever-increasing demands with regardto their reliability and resistance to corrosion. These stringentrequirements present serious dilemmas for you. On one hand,strict reliability requirements mean that you are forced to usehigh quality fasteners (quality class 10.9 and higher). On theother hand, these fasteners are expected to have the sameminimum corrosion resistant properties as the other parts ofthe product.

Until recently your choice was restricted to less reliablesolutions.

If electro-galvanizing is chosen for high quality fasteners thereis a conscious risk of fractures as a result of hydrogenembrittlement. If you choose a more reliable surface coatingsuch as thermal galvanizing of screw threaded products, youare not only restricted in terms of dimensions but also in termsof the fit of the internal and external screw thread. In order tocarry out thermal galvanizing of relatively thick layers of zinc,some material has to be removed before galvanization. Thismeans that the flank covering between the internal andexternal screw thread is lower which has negative

consequences on the load capacity.

However, if you specifically choose electroplating of a zinccoating and you want to suppress completely risk as a result ofhydrogen embrittlement, then the choice of high qualityfasteners is out of the question. In this case you will have torely on lower quality fasteners with greater dimensions as aresult. The new DACROMET 500 LC Grade A nonelectrolytically applied surface coating eliminates all of theserestrictive and high risk considerations.

What is DACROMET?DACROMET consists of an inorganic support to whichextremely fine zinc and aluminium particles are firmly attached.These particles have been passivated to optimise the corrosionresistant properties.

How is DACROMET 500 LC applied?The products are cleaned thoroughly beforehand andsubsequently immersed in a water-borne dispersion of zinc andaluminium flakes with low solvent content. Centrifuging is used

to remove the excess solution on the products, and the mineralstructure of the coating is obtained by reaction at appr. 300C.This process is repeated several times until the requiredcoating thickness is obtained.

What is the layer of thickness ofDACROMET 500 LC OFFER?For DACROMET 500 LC Grade A the minimum coatingthickness for fasteners is usually 5m. Grade B, which isavailable upon request, has a layer thickness of 8m andoffers even better corrosion protection.

What degree of corrosion protectiondoes DACROMET 500 LC OFFER?DACROMET 500 LC Gr ade A offers corrosion protectiondepending on the environment. It is several times greater thanelectro-galvanizing and can compare favourably in givenconditions with the protection given by hot dip galvanizing.

Compare salt-spray tests in accordance with ASTM B117 /DIN59021 and values in accordance with DIN50961.

(1) For class 8.8 in diameter d = 16mm there

is an increased risk of nut stripping in the

case of inadvertent over-tightening

inducing a load in excess of proofing

load. Reference to ISO 898-2 is

recommended.

(2) For structural bolting the limit is 12mm.(3) Applies only to nominal thread diameter d

= 16mm.

(4) Min. tensile properties apply to products

of nominal length l = 2,5 d. Min.

hardness applies to products of l < 2,5 d

and other products, which cannot be

tensile-tested (e.g. due to headconfiguration).

(5) Surface hardness shall not be more than

30 Vickers points above the measured

core hardness on the product readings of

both surface and core are carried out at

HV 0,3. For class 10.9 max. surface

hardness = 390 HV.

(6) In cases where the lower yield stress Relcannot be determined, it is permissible to

measure the proof stress Rp0,2.

Scope and field of applicationThe property classes and their mechanical properties apply to bolts, screws and studs, with metric (ISO) thread, with nominal

thread diameter d = 39mm, made of carbon steel or alloy steel and when tested at room temperature.

They do not apply to set screws and similar (see ISO 898-5) or to specific requirements such as weldability, corrosion resistance,

ability to withstand temperatures above +300C or below -50C. The designation system may be used for sizes (e.g. d > 39mm),

provided that all mechanical requirements of the property class are met.

Designation system of property classesThe property class symbols, indicating the most important mechanical properties, consist of two figures, one on either side of adot. For example, 10.9. The first indicates 1/100 of the nominal tensile strength in N/mm 2 (See Rm in the table).

So property class 10.9 has a tensile strength 10 x 100 = 1000 N/mm2.

The second figure indicates 10 times the ratio between lower yield stress Rel (or proof stress Rp0,2) and nominal tensile strength

Rm (yield stress ratio).

So at property class 10.9 the second figure 9 = 10 x (900 1000).

The multiplication of these two figures will give 1/10 of the yield stress in N/mm 2, so 10 x 9 = 1/10 x 900 N/mm 2.

Guide for properties at elevated temperatures(No integral part of the standard)

TIME UNTIL

SURFACE TREATMENT RED RUST

Zinc plated (@ 5m) 48 hours

Zinc plated (@ 8m), yellow passivated 120 hours

Hot dip galvanized (@ 40m) 400 hours

DACROMET 500 LC Grade A 500 hours

DACROMET 500 LC Grade B 1000 hours

DELIVERY & INSURANCEPRODUCT & WEIGHT TABLE


16/16

DELIVERY & INSURANCEUK Mainland

PRODUCT & WEIGHT TABLE




60 0. 123 0. 164 0. 209 0. 254 0. 315

65 0. 131 0. 173 0. 221 0. 269 0. 332 0. 448

70 0. 138 0. 183 0. 233 0. 283 0. 349 0. 470 0. 608

75 0.146 0.192 0.244 0.298 0.367 0.492 0.635 0.796

80 0.153 0.202 0.256 0.312 0.384 0.514 0.662 0.829 1.025

85 0.161 0.212 0.268 0.327 0.401 0.536 0.689 0.862 1.064

90 0.169 0.221 0.280 0.341 0.418 0.558 0.716 0.894 1.104 1.353

95 0.176 0.231 0.292 0.356 0.436 0.580 0.744 0.927 1.143 1.400 1.648

100 0.184 0.241 0.304 0.370 0.453 0.602 0.771 0.960 1.182 1.446 1.701 2.030

110 0.199 0.260 0.328 0.399 0.487 0.646 0.825 1.026 1.261 1.538 1.808 2.153 2.519

120 0.214 0.279 0.352 0.428 0.522 0.690 0.879 1.092 1.339 1.630 1.915 2.276 2.659 3.212

130 0.228 0.297 0.374 0.455 0.554 0.730 0.929 1.153 1.412 1.716 2.015 2.391 2.789 3.366

140 0.243 0.316 0.398 0.484 0.588 0.774 0.984 1.219 1.490 1.808 2.122 2.514 2.929 3.531 4.127

150 0.258 0.335 0.422 0.513 0.623 0.818 1.038 1.285 1.569 1.900 2.229 2.637 3.069 3.695 4.318

160 0.273 0.354 0.445 0.542 0.657 0.862 1.092 1.351 1.647 1.992 2.336 2.760 3.209 3.860 4.509

170 0.289 0.374 0.469 0.571 0.692 0.906 1.146 1.416 1.725 2.085 2.443 2.883 3.349 4.024 4.700

180 0.304 0.393 0.493 0.600 0.727 0.950 1.201 1.482 1.804 2.177 2.550 3.006 3.490 4.189 4.892

190 0.319 0.412 0.517 0.629 0.761 0.993 1.255 1.548 1.882 2.269 2.657 3.129 3.630 4.354 5.083

200 0.334 0.431 0.541 0.658 0.796 1.037 1.309 1.614 1.961 2.361 2.764 3.252 3.770 4.518 5.274

210 0.347 0.447 0.561 0.682 0.824 1.074 1.355 1.670 2.027 2.440 2.854 3.357 3.888 4.659 5.437

220 0.362 0.466 0.585 0.711 0.859 1.118 1.409 1.736 2.105 2.532 2.961 3.480 4.028 4.824 5.628

230 0.377 0.486 0.608 0.740 0.893 1.162 1.463 1.801 2.184 2.624 3.068 3.603 4.168 4.989 5.819

240 0.392 0.505 0.632 0.769 0.928 1.206 1.517 1.867 2.262 2.716 3.175 3.726 4.309 5.153 6.010

250 0.407 0.524 0.656 0.798 0.962 1.250 1.572 1.933 2.340 2.809 3.282 3.849 4.449 5.318 6.201

260 0.422 0.543 0.680 0.827 0.997 1.294 1.626 1.999 2.419 2.901 3.390 3.972 4.589 5.482 6.393

270 0.438 0.563 0.704 0.856 1.031 1.338 1.680 2.065 2.497 2.993 3.497 4.095 4.729 5.647 6.584

280 0.453 0.582 0.728 0.885 1.066 1.381 1.735 2.130 2.576 3.085 3.604 4.218 4.869 5.812 6.775

290 0.468 0.601 0.752 0.914 1.101 1.425 1.789 2.196 2.654 3.177 3.711 4.341 5.009 5.976 6.966

300 0.483 0.620 0.775 0.943 1.135 1.469 1.843 2.262 2.733 3.270 3.818 4.464 5.149 6.141 7.157

310 0.498 0.640 0.799 0.972 1.170 1.513 1.897 2.328 2.811 3.362 3.925 4.587 5.289 6.305 7.348

320 0.513 0.659 0.823 1.001 1.204 1.557 1.952 2.394 2.890 3.454 4.032 4.710 5.429 6.470 7.539

330 0.528 0.678 0.847 1.030 1.239 1.601 2.006 2.459 2.968 3.546 4.139 4.833 5.569 6.635 7.731

340 0.544 0.697 0.871 1.059 1.273 1.645 2.060 2.525 3.046 3.638 4.246 4.956 5.710 6.799 7.922

350 0.559 0.717 0.895 1.088 1.308 1.688 2.114 2.591 3.125 3.731 4.353 5.079 5.850 6.964 8.113

360 0.574 0.736 0.919 1.117 1.342 1.732 2.169 2.657 3.203 3.823 4.460 5.202 5.990 7.128 8.304

370 0.589 0.755 0.942 1.146 1.377 1.776 2.223 2.723 3.282 3.915 4.567 5.325 6.130 7.293 8.495

380 0.604 0.774 0.966 1.174 1.411 1.820 2.277 2.788 3.360 4.007 4.674 5.448 6.270 7.458 8.686

390 0.619 0.794 0.990 1.203 1.446 1.864 2.332 2.854 3.439 4.099 4.781 5.571 6.410 7.622 8.878

400 0.634 0.813 1.014 1.232 1.481 1.908 2.386 2.920 3.517 4.192 4.888 5.694 6.550 7.787 9.069

410 0.650 0.832 1.038 1.261 1.515 1.951 2.440 2.986 3.596 4.284 4.995 5.817 6.690 7.951 9.260

420 0.665 0.851 1.062 1.290 1.550 1.995 2.494 3.052 3.674 4.376 5.102 5.940 6.830 8.116 9.451

430 0.680 0.871 1.086 1.319 1.584 2.039 2.549 3.117 3.752 4.468 5.209 6.063 6.970 8.281 9.642

440 0.695 0.890 1.109 1.348 1.619 2.083 2.603 3.183 3.831 4.560 5.317 6.186 7.111 8.445 9.833

450 0.710 0.909 1.133 1.377 1.653 2.127 2.657 3.249 3.909 4.653 5.424 6.309 7.251 8.610 10.024

500 0.786 1.005 1.253 1.522 1.826 2.346 2.929 3.578 4.302 5.113 5.959 6.924 7.951 9.433 10.980

550 0. 861 1. 102 1. 372 1. 667 1. 999 2. 565 3. 200 3. 907 4. 694 5. 574 6. 494 7. 540 8. 652 10. 256 11. 936

600 0. 937 1. 198 1. 491 1. 811 2. 171 2. 785 3. 471 4. 236 5. 086 6. 035 7. 029 8. 155 9. 352 11. 079 12. 892

650 1. 013 1. 294 1. 610 1. 956 2. 344 3. 004 3. 743 4. 565 5. 478 6. 496 7. 565 8. 770 10. 053 11. 902 13. 847

700 1. 089 1. 390 1. 730 2. 101 2. 517 3. 223 4. 014 4. 894 5. 870 6. 957 8. 100 9. 385 10. 753 12. 725 14. 803

750 1. 164 1. 487 1. 849 2. 246 2. 690 3. 443 4. 285 5. 223 6. 263 7. 418 8. 635 10. 000 11. 454 13. 548 15. 759

800 1. 240 1. 583 1. 968 2. 390 2. 862 3. 662 4. 557 5. 552 6. 655 7. 879 9. 170 10. 615 12. 154 14. 371 16. 715

LENGTH NOMINAL DIAMETER

mm M16 M18 M20 M22 M24 M27 M30 M33 M36 M39 M42 M45 M48 M52 M56

DIN931-8.8All weights in kgs each

All quotations are based upon our best price ex-works, withcarriage charges applicable based upon total weight or bagquantity. Carriage charges are calculated in multiples of 25kgs.Unless otherwise advised, when a consignment exceeds 175kgor the goods are of considerable length, a pallet will be usedfor despatch.

Timed Delivery ScheduleWe are in a unique position to offer a guaranteed next dayservice to the whole of the UK whether it is the centre of

London or the Islands of Scotland.

For your urgent consignments we also offer timed deliveries tomost destinations, so whether you need it there before 9am,10am or 12 noon we have a service to meet yourrequirements.

We recognise that sometimes, there may be a real crisis. That'swhy we can even deliver your consignments on a Saturday, orif you require, before 9am on Monday morning.

2-3 Day ServiceFor your less time critical consignments, our 2-3 Day servicestill provides you with a service that is second to none butwithout the cost of next day delivery.

Surchages may apply for Next Day deliveries to the ScottishHighlands. Please check your postcode destination against thelistings below for a guaranteed delivery.

WITHIN

24HOURS

BEFORENOON

ENGLANDAll postcodes

WALESAll postcodes

SCOTLANDAB: All postcodesDD: All postcodesDG: All postcodesEH: All postcodesFK1 to FK7

FK8Stirling andAberfoyle onlyFK9 to FK16, FK17Callander onlyG: All postcodesIV1 Inverness Town only,North Kessock &Charlestown only,Newtown and FrackleyIV2 Inverness Town only

IV3 Inverness Town onlyIV4 Beauly onlyIV5, IV6Muir of Ord onlyIV7 to IV12IV13 Tomatin onlyIV14StrathpefferIV15 Dingwall onlyIV17Alness onlyIV18 Invergordon onlyIV19 Tain onlyKA: All postcodesexcluding islands

KY: All postcodesML: All postcodesPA1 to PA40: Mainlandonly excluding MorvenPH1 to PH9PH10 Blairgowrie andRattray onlyPH11Alyth onlyPH12, PH13, PH14PH15Aberfeldy only

PH16 Pitlochry onlyPH18 Blair Atholl andCalvine onlyPH19 Dalwhinnie onlyPH20 Laggan andNewtonmore onlyPH21 Kingussie onlyPH22Aviemore onlyPH23 Carrbridge onlyPH24 Boat of GartenonlyPH26 Grantown-on-Spey

onlyPH33 Fort William onlyPH34Spean Bridge onlyTD: All postcodes

NORTHERN IRELANDAll postcodes

ISLE OF MANAll postcodes

ISLE OF WIGHTAll postcodes

CHANNEL ISLESAll postcodes

ANGLESEYAll postcodes

SCOTTISH ISLESBy prior arrangement butmay incur a surcharge

REPUBLIC OF IRELANDAll countries Next Daydelivery by air.Normal air freight; sizeand weight restrictionsapply.

ENGLANDAll postcodes

WALESAll postcodes

SCOTLANDAB10, AB11, AB12AB15, AB16, AB21AB22 Bridge of Don onlyAB23 Bridge of Don onlyAB24, AB25DD1 to DD7DG: All postcodes

EH1 to EH30EH47 to EH55FK1 to FK7FK8Stirling onlyFK9 to FK15G1 to G62G64 to G83IV1 Inverness Town onlyIV2 Inverness Town onlyKA1 to KA17KA19 to KA25KY: All postcodesML1 to ML12PA1 to PA16

PH1 Perth Town onlyPH2 Perth Town onlyTD1TD4 to TD9TD12, TD15



CHANNEL ISLESNot available

SCOTTISH ISLESNot available


ISLE OF MANNot available

REPUBLIC OF IRELANDDublin City, Limerick City,Cork City, Galway City,Waterford City.

NEXT DAY GBP GBP WEIGHT

SERVICE MIN. CHARGE PER BAG PER BAG

Within 24 hours 8.00 4.50 25kg

Before Noon 10.00 6.75 25kgBefore 10am 12.00 9.00 25kg

Before 9am 16.00 11.25 25kg

Pallet upto 500kg 40.00 - 500kg max.

Pallet 500kg to 1ton 55.00 - 1000kg max.

SATURDAYDELIVERY ENGLAND

All postcodes

WALESAll postcodes

SCOTLANDAB10, AB11, AB12AB15, AB16AB21 to AB25AB30. AB31, AB40,AB42DD1 to DD7DD10, DD11

DG: All postcodesEH: All postcodesFK1 to FK7FK8Stirling onlyFK9 to FK16G1 to G82KA: All postcodesexcluding IslandsKY: All postcodesML: All postcodesPA1 to PA19PH1 Perth onlyPH2 to PH5PH13, PH14

TD: All postcodesAll other postcodespossible by priorarrangement, subject toan additional surcharge




CHANNEL ISLANDSAll postcodes by priorarrangement

ISLE OF MANAll postcodes by priorarrangement

REPUBLIC OF IRELANDDublin City only

dinstock catalogue

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