Eleventh Reprint JULY 1995 ( foeorprnting Amcndmcn: No. I )

SPEClFICATION FOR PLAIN WASHERS

( Fkd- Revisioaz )

Screw Threads and Fasteners Sectional Committee, EDC 27

ChCifitIM SIIRI T. C. PANT

Represenfing Rexarch Designs & Standards Oqanization (Mix&

try of Railways )

SHIU C. M. MAUR ( Al&mute to Shri T. C. Pant )

COL J. P. ANTHONY SHRI S. C. GHOSH ( Ahnate )

s.xaw R. M. APm

Ministry of Defence ( DGI )

Machine Tool Prototype Factory, Directotatc Getieral of Ordnance Fact&q Ambemath

Directorate of Inspection ( Vehicles ), Mb&try of Dcfewe ( DGI )

%RI D. R. MALIK (Alternate ) ~f%W B. s. iiHAOOW4LIA

Smr s. K. BtiATIA

5x1~ R. S. 13~. S:mr M. rtANQASHA1 ( Attcrnak )

D.:CPUN DIRECTOR OP MARINE ENOINEERINO

E;I-COL M. K. DHAM DPI:: V. M. GHATAGE

SHRI B. R. SAMPATUWMAUX ( Alfernofe)

Ta:a Engineering. & Locomotive ,cO Ltd, JCUIlSilfZdpUr

Heavy Elc~ctricals ( II: &a ) Ltd, Bhopal Hindustar;. Ma.&& Toois Ltd, Bangalore

Indian Navy

Ministry of Defcncc ( R Rr D ) Hindustan Aeronautics Ltd, Ba.ngalore

1 Indian Teiephone Industries Ltd, Bangalore %a 3. GOW~WRAJ

SZIRI D. A. CHELLIAAH ( Altcrnau , SW:: N. V. HEBACKAR Kirloskar Ilrothers Ltd, Kirloskarvadi Smr 8. D. KAPUR All. India Manufacture:& Organization, Bombay SHIU Y. KAFUR Guest, V.een, Williams, Ltd, Calcutta

Sara Ds1.n~ P.WJL ( Alternate ) Saw M. N. KEW.RI

SIXRI K. GURURAJA ( Altcmak ) Bharat Electronics Ltd. Bangalore

DR % 1’. LUTHRA The Insritction of Engineers ( India), Calcutta SNXI Il. MAJUMDAR Offcc~ of the Develo;xnent Commissioner for Small

Scale Industries ( Ministry of Industs

St-txr G. B. JAUTIA ( Alhmotc ) Development & Company AA&, )

( Cdnud OR page 2 ) MuL:*“.~ -.-Z.-a1.--.-

BUREAU OF lNDi&N STANDARDS MAN,b& BHAVAN, 9 BAHADUR SHAH ZAFAR MAR0

NEW DELHI 110002

Mcmbcrs Hq6rcszr:fin~ CjHxI s. I,. ?&4JI:lrlDAR National Tc3t House, Calcutta SHRI R.N. ~~ALLICK Diwctoratr General of T:ecl;niial Deve:opmcnt

( Ministry of Industria! I:)evclopmcnt & Company Affairs )

SHRI R. S. MATHUR Engineering Association of India, Caicutta SHRI S. K. MANIKTA,LA ( AIlcrnnte )

$HKI P. s. 3 AC,\SuNDARKb, Directorate of Technical Devclop:n.eat & Production ( Air j ( Ministry of Defencc )

SHRI K. S. PATEL Jyoti L.td, Baroda SE-~.PREM PRAKAs~~ National Physical Laboratory ( CSIR ), New Delhi

SHRI P. C. JAIN ( Alfemak ) SHKl s. RAM ~.MRITWAM Directorate General of Civil Aviation (Ministry of

Tourism 8: Civil Aviation ) SHRI P. Ii. CHANDRASEKHAR ( AknQfC)

SmxT.S.S.!Lm The Cycle Manufacturers’ Assxiation of India, Calcutta

SHRI 3. C. BRADLEY (1 Alfrrnale ) SHRI S. SHIVANANDA SW.WY New Government Electric Fac:tory, Ban&ore

SHRI Ii. F. WAGNER ( Alternate) SHJH S. S. TEIAKUR Directorate General of Supplies 8.z Disposals ( Minis-

try of Works, Housing & Supply ) SHRI D. V. VIRMAX.I. Industria! Fasteners’ Association of India, Calcutta SHiBI M. \?. t’ATANKAR, Director General, ISI ( Ex-o$cio Member )

Director ( X&h Engg ) SW-!Ugv

SHRI S.CWANDRASEKHARAN

Deputy Director ( Mcch Engg ), IS1

Bolts and Nuts for GeneralEE;Ei;eri;rg Purposes Subcommittee,

CO?WOUl SHRZ R. S. BIR Hindustan Machine Tools Ltd, Bangalore

h+mbns SHR I M: RANCASHAI ( dltemate to

SHRI ss hri R. S. Bir )

..-.. __ K. J~HATIA Heavy Electricals ( India ) Ltd, Bhopal L. T-COL H. K. DHAM Ministry of Defence ( R & D ) Sl _HRI D. S. GABBI Research Designs & Standards Organization

( Mini&y of Railways ) SHRI v. %.puR Guest, Keex, Williams, Ltd. Calcutta ,

SHRI DILIP PAUL ( A~fc-rnafc ) SHRl M. M. MURARKA

SHRX N. V. ,MESWANI ( Altui& ) Engineering Association of India, Calcutta

SHRI. R. S. THAPA Forbes Forbes Campbell & Cb Ltd, Bombay SHRI,J; P. PALKHIVALA ( Aftem&)

‘2

IS : 2dPS - 1967

Indian Standard SPECIFIC.ATION FOR

PLAIN WASHERS

( First Revision j

0. FOREWORD

0.1 This Indian Standard ( First Revision ) was adopted by the Indian Standards Institution on 9 November 1967, after the draft finalized by the > Screw Threads and Fasteners Sectional Committee had been approved by the Mechanical Engineering Division Council.

5.2 This standard was originally issued. in 1962. This revision incorporates the decision taken by the ISO/TC 2 Eolts, Nuts and Accessories.

a),3 This standard is based on:

Draft ISO Recommendation Ko. 940 ‘Washers for hexagon bolts and nuts, metric series. Inter:larional Organization for Standardizn- tion.

Dot: ISO/TC 2 ( Secretariat- T.84 ) 302 First draft proposal fclr washers for heltagon bolts and nuts - metric series - 42 up to and including 1.50 ,mm thread diameter. Internationai Organi- zation for Standardization.

Dot: ISO/TC 2 ( Secretariat-194) 326 First draft proposal for washers for cheese head screws -. metric series - 1 up to and including 20 mm thread diameter. International Organization for Standardization.

DIN 1251943 Scheiben fiir Sechskantschr uben und Muttern

cd!h% -as ers for hexagon bolts and nutS ). Deutscher Normen-

. .

Q.4 For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated, e+ress-, ing the result of a test, shali be rounded off in accordanc.e with IS : 2-1960*. The number of significant places retained in the rounded off value should be the same as that of thi: specified va1v.e in this standard.

3

I.1 This standard iays down the requirements for plain washers of the following types:

4

b)

Cl

Machined washers, for precision and semi-precision grade of general purpose baits and screws, in the diameter range ; ~7 to 155 mm; Punched washers, type A, for black grade general purpose bolts and. screws, in the diameter range i-8 to 52 mm; and Punched washers, type B, for slotted head screws in the diamctcr range 1.8 to 22 mm.

2.1 Mate&d - Washers shall be made of steel, brass, aluminium o;- any other suitable metal. specified by the purchaser.

2.2 W~rh~tisSp -‘- The washers shall be free from cracks, brxxs, pits and other dekcts. The holes shaIl be reasonably concentric with !;he outer periphery. A11 sha~rp edges sha’!l be removed.

3. D~XGNATXO~J

3.1 A washer shall be designated by name, type, size, number <:~f this standard and material.

Examples:

a) A machined washer of size 10.5 mm made of brass shall be designated as:

Machined Washer 10.5 IS : 2016~Brass

b) A punched washer, Type B of size 14 mm made of brass shah be designated as:

Punched Washer B 14 IS : 2016~&ass

4. EIMENSIONS

4.1 The dimensions for machined washers, punched washers, types A and B, shall be as given in Tables I,2 and 3respectively ( see P 6 to 11 ).. These tab& also give the size of bolt or screw for which the washers are witable.

42 The other ditiensional requirements for punched washers covered in Tables 2 and 3 khal be as givext in I§ : 5369-1969’.

@Gcaad rqdremcnts for pIah washas id lddr nwhtii

4

X@t2016-1967

5. lRNIS?I

S;1 Tht plain washers shah .be supplied in natural finiih unless otherwise s$ecified by the purchaser. At the request of the purchaser, washers may be phosphate coated, nickel plated, tinned, galvanized, ‘copper plated, cadmium plated, etc. The properties of the plain washers shall not, however, be impaired by the protective coating specified by the purchaser.

6. PACKING

6.1 The plain washers may be packed as recommended below:

Sizes up to 10.5 mm In boxes of 1000 pieces Size3 from 13 to 19 mm In boxes of 500 pieces Sizes 21 mm and above In boxes of 100 pieces.

The plain washers may also be packed in quantities of 2 kg and 50 kg.

‘7,I The packages containing washers shall be marked with the sire and manulhcturer’a name or trade-mark.

7.X.1 The package may also bc marked with the IS1 Certification Mark.

Nme -The use of the IS1 Certification Mark is governed by the provisions of the Indian Standards Institution ( Certification Marks ) Act and the Rules and Regulations made thereunder. The ISI Nark on ~producta covered by an Indian Standard conveys the assurance that they have been produced to comply with the requirements of that standard under a well-dc6ncd system of inspection, tclting and quality control which is devised and supervked by ISI and opuattd by the producer. IS1 marked products are also continuously checked by ISI for conformity to that standard as a Father safeguard. Details pf conditions under which a licencc for the use of the IS1 Certification Mark may be granted to roanufactuxxs or proc&aon, may be obtained from the Indian Standards Institution.

i SIZE d H12*

-

1.7 -

(2)

2.2

-...--- D

-- Basic TO1

_.-..- --

4 -4-o -0.3

_.-..- _

5 +0 -0.3

-...- __-~

5 +o -0.3

---

6 +o -0.3

3.2

(3.7)

4.3 --

(4.8)

7 -to -0.3

--

8 3.3

9 t,“.,

10 2i.3

T -1, .

_

I -.

,

Basic --.-

0.3 --

0.3 -

0.3

0.5

0.5 -.

0.5

0.8 --

04 ~-

I.0 ----

-

-

.

_j.

. .

- .

_

_ .

. .

“I_

-‘.,

TO1

*O-I --

*0.1

*O*l

*O-I

x0.1

10-l -.

10.1

=kO*l

10.1

O-1 &i31.>; ~.- --.--

0.1 (M1.U) ------

0.; M2 I---

0.2 (M2.2) .-

0.2 M2.5

0.2

0.3

o-3

0.4

bntimd ) NO= - Sizes in brackets are of second preference.

( *Sea IS : 919 - 1963 ‘ Recommendationa for limits and fits for enginestring ( r&d ) ‘.

6

M3

(h13.5)

M4 _-

(M45)

fSt2016.1967 c

--

SIZE

I

D d H12*

BE& L 5.3 IO

6.4 12.5

(7.4) 14

8.4 17

10.5 21

13 24 ----

(1s) / ,28 --. ---

17, I 30’ ----. _-~-

(i9) j 34 --.-

21

(231 ---

25 --

(28) --.._--

31 - -_.-

_ I

-

37 -.__--

39 _.--

44 -.--

50

56 .---

--

. -

_ .,

..-

-

To1

44 70.3

- __- +j - 0.4

-- +o -0.4

t-0 -0.4

+o -0.5

4-Q -0.5

+o -0.5

-t-O -0.5

+o -0.8

+o -0.8

.-.-.- +o --0.8

+0 -0.8

3-O -0.8

+a - ---!.a

--._..--

.-

_

.-

.-

. .

_.

_

__

-- -- i&n i&n -- -- -

0.4 0.4 -

0.6 0.6

1.6 40.2 0.6

-- 2 *o-2

I--- 0.6

M5

M6 --*-

W7)

M8

Ml0

----I 2.5 +=0*3 Ml2

43 ---

WI --“A

5Q -.--

@*I --..A

58

w

65

-- -.-

__-

.---.-

-- --” _

---.- -, , -

--- --- --

-- --

(cw!!)

Ncm-Sk in brackets are of second prc&cncc. *&a IS : 919 - 1963 G Recommendations for limits and fits for en&dg ( ww ) *.

8

93

WV

104

VW

114

(119)

(124)

129

WV

144

(!55) --

160

165

175

180

185

200

210

220

230

240

250

- -.I-. --.._

--,-

_._.-- a

--

-

- .-

Mm - Sizes in hnwketu are of second preference.

*&w IS : 919 - 1963 ‘ Rceommendatiws for hita and fiti for engineering ( raked ) ‘,

I _ I

! r

t; I

1; 8 I ^

NOTE -Sizes in brackets are of second preference. .,“Lm

10

ISr2016-1967

TABLE 3 IMMFiNSIONS FOX PUNCZHED %MS?IERS, TYPE BP FOR ‘ROUND AND f.HEESE HEAD SCREWS

( Cl .uw 4.1 and 4.2 )

All di nensions in millimetres.

‘;‘;’ 4.5 0.5

2:; 0.5 ‘g:;)

3.4 0.5 :1&S -...-. ..---

‘z;’ 7.0

(i0) 8.0 ;:; (g-5)

9.0 0.8 {:!ti+5)

Ii.5 6.6

(F.6) .- 9

;:

“1;’ (2v -.- .,o “1.

..L----..- ..- -_-

I 9.5 1.0 ih415

1.6 M6

I i.: 1.6 (M7)

.._~-- - -. ..--- I I 14 1.6 bia I ii

2 MI0 2.5 Ml2

.._-- .-. ‘- ----

24 I 2.5 3.15 ‘g’ I i;: 1 3.15. (F&18) - ---.....----- ._,._-...-- - I---’ ,_..._ ---...-.- ~___

-. 33 3.15 M20 --! ! 1~ -.

AlWEN.DlWBJT N8,2 MARCH 1979 TQ

( Fkst Reokion )

Altekiitiotis

[ Page 4, &use 4.2 (see also Amendment No. 1 ) - Substitute the following for the existing clause:

‘4.2 The other dimensional requirements for punched washers covered in Tables 2 and 3 shall comply lvith those specified for ordinary washers according to IS : 5369-1975*.’

( Page 4, foot-note with ‘ * ’ mark ) - Substitute the following for the existing foot-note:

‘*General requirenlents for plain washers and Jock w&hers (JirJf rco20n ).’

clausA Page 5, clauses 6 and.6.J ) - Substitute the following for the existing 5:

‘6. CXNERAI; PLEQUI&EMENTS 6,l In respect of requirements not covered in this standard, machined and punched washers ‘shall comply wih requirements specified: for precision and ordinary washers, respectively, according to IS : 5369-1!375*,’

Addendram

( Page 5, j%ot-note ) - Add the following new foot-note zat the end: ‘*General reqlrirements for plain washers and lock washers (Jrsl r&:ion ).’

IEDC 27 )

Printed at Simco Printir.g Press, Delhi

AMENDMENT NO. 3 NOVEMBER 1980

TO

IS:2016-1967 SPECIFICATION FOR PLAIN MASHERS

(First Revisionl

Alterations ------

(Page 6, Tabi!e 1, figure) - Substitute the following for the existing figure:

(Page 10, Table 2, figure) - Substitute the following for the existing figure:

1

Addendun -- --

(Page 4, oZuwe~.~-4.2) - Add the followiw new c&mse after 4.2:

"4.3 .Ma&ined and punched washers shall conform to the concentricity tolerance, permissible deviations for parallelism and flatness as specified in 16:5369-1975 'General requirements for plain washers and -Lock washers (first Z’f&8iO?Z) ’ .”

AMENDMENT NO. 4 OCTOBER 1982

TO

IS:2016-1967 SPECIFICATIOM FOR PLAIN WASHERS

Alterations ------

[Page 4, ohuse 4.2 (see aikc Amendment No. 2)] - Substitute the following for the existing clause?

"4,2 The tolerance on inner diameter, d outer diameter, D and thickness 8 for machined and punched washers shall conform to precision and ordinary washers respectively as specified Pn Is:5369-1975 "General Requirements for Plain Washers and IQ& W&hers'."

fkge 4, eZaasse 4.3 (se& abo Amendment No. 3)] - Substitute the fo'orlowirsg for the existing clause:

'4.3 In respect 0P' concentricity tolerance, permissible deviations for paralleU.sm and flatness, the machined and punched washers shall conform to precision and ordI.nary washers respectively as specified in x3:5369-1975.'

--- hinted at Simco hinting Press, Delhi