IS: 2016· 1967

[lillian StandardSPECIFICATION FOR

PLAIN WASHERS-

( First Revision )Fifth Reprint JULY 1976

( Incorporating Amendment No.1)

UDC 621'882'4

@ Copyright 1972INDIAN STANDARDS INSTITUTIONMANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

Price Rs 6'~ February 1968

IS I 2016· 1967

\ TECHI leAL L1BR RY.G

Acce sion d on 1'~By ....•..•....•.....•• ·········1f1 ian Standard

SPECIFICATION FORPLAIN WASHERS

(First Revision)

MembersSHRI C. M. MALIK (Alternate to

Shri T. C. Pant)COLJ. P. ANTHONY

SHRI S. C. GHOSH(Alternate)SHRIR. M. APTE

Ministry of Defence (DGI)

Screw Threads and Fasteners Sectional Committee, EDC 27

ChairmanSHRI T. C. PANT

RepresentingResearch Designs & Standards Organization (Minis.

try of Railways)

MAJ I. J. S. BASSI

Machine Tool Prototype Factory, DirectorateGeneral of Ordnance Factories, Ambernath

Directorate of Inspection (Vehicles), Ministry ofDefence ( DG I )

SHRI D. R. MALIK (Alternate)SHRI B. S. BHAGOWALIA Tata Engineering. & Locomotive Co

JlUIlshedpurSHRI S. K. BHATIA Heavy Electricals ( India) Ltd, BhopalSHRIR. S. BIR Hindustan Machine Tools Ltd, Bangalore

SHRI M. RA~GASHAI( Alternate)DEPUTY DIRECTOROF MARINE Indian Navy

ENGINEERINGLT·COL H. K. DHAMDR V. M. GHATAGE

SHRI B. R. SAMPATHKUMARAN( Alternate )

SaRI B. GOVINDARAJ Indian Telephone Industries Ltd, BangaloreSHRID. A. CHELLIAH( Alternate)

SHRI N. V. HEBALKAR Kirloskar Brothers Ltd, KirloskarvadiSHRIB. D. KAPUR All India Manufacturers' Organization, BombaySHRI V. KAPUR Guest, Keen, Williams, Ltd, Calcutta

SHRI DILIP PAUL (Alternate)SHRI M. N. KESARI Bharat Electronics Ltd, Bangalore

SHRI K. GnRURAJA( Alternate )DR S. P. LUTHRASHRI D. MAJUMDAR

Ministry of Defence (R & D )Hindustan Aeronautics Ltd, Bangalore

Ltd,

( Continued on page 2 )SHRI G. B. JAKETIA(Alternate)

The Institution of Engineers ( India), CalcuttaOffice of the Development Commissioner for Small

Scale Industries ( Ministry of IndustrialDevelopment & Company Affairs)

INDIAN ST ANDARDSMANAK BHAVAN, 9 BAHADUR SHAH

NEW DELHI 110002

INSTIT UTIONZAFAR MARG

IS: 2016 • 1967

( Continued from page I)

RepresentingNational Test House, CalcuttaDirectorate General of Technical Development

( Ministry of Industrial Development &Company Affairs)

SHRI R. S. MATHUR Engineering Association of India, CalcuttaSHRI S. K. MANIKTALA (Alternate)

SHRI P. S. NAGASUNDARAM Directorate of Technical Development & Production( Air) ( Ministry of Defence)

]yoti Ltd, BarodaNational Physical Laboratory ( CSIR ), New Delhi

MembersSHRI S. D. MAJUMDARSHRI R. N. MALLICK

SHRI K. S. PATELSHRI.PREM PRAKASH

SHRI P. C. ]AIN (Alternate)SHRt S. RAMAMRITHAM Directorate General of Civil Aviation (Ministry of

Tourism & Civil Aviation)SHRI P. R. CHANDRASEKHAR ( Alternate)

SHRI T. S. S. RAO The Cycle Manufacturers' Association of India,Calcutta

SHRt]. C. BRADLEY ( Alternate)SHRt S. SHIVANANDA SWAMY

SHRI H. F. WAGNER (Alternate)Saar S. S. THAKUR

New Government Electric Factory, Bangalore

Directorate General of Supplies & Disposals (Minis-try of Works, Housing & Supply)

Industrial Fasteners' Association of India, CalcuttaDirector General, ISI ( Ex-officio Member)

SHRI D. V. VtRMANISHRI M. V. PATANKAR,

Director ( Mech Engg )Secretary

SHRt S. CHANDRASEKHARANDeputy Director ( Mech Engg), ISI

Bolts and Nuts for General Engineering Purposes Subcommittee,EDe 27: 3

ConvenerSHRI R. S. BIR Hindustan Machine Tools Ltd, Bangalore

MembersSHRI M. RANGASHAI (Alternate to

Shri R. S. Bir)SHRI S. K. BHATIALT-COL H. K. DHAMSHRI D. S. GABBI

Heavy Electricals ( India) Ltd, BhopalMinistry of Defence (R & D )Research Designs & Standards

( Ministry of Railways)Guest, Keen, Williams, Ltd, Calcutta

Organization

SHRI V. KApURSHRI DILIP PAUL (Alternate)

SHRI M. M. MURARKA Engineering Association of India, CalcuttaSHRI N. V. MESWANI (Alternate)

SHRI R. S. THAPA ' Forbes Forbes Campbell & Co Ltd, BombaySHRI]. P. PALKHIVALA (Alternate)

2

,...>- ..- •·

~ ·~ IS: 2016 - 19610: &;.w.me ~; Indian Standard-0 . :..J ," ~ SPECIFICATION FOR-.oJ": ·0 ·.,.•.. ~ 0 · PLAIN WASHERS.....•

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" :=.•. 0 ( First Revision)'r:;;'r.I.)'.'; >- O. FOREWORDA ~

0.1 This Indian Standard (First Revision) was adopted by the IndianStandards Institution on 9 November 1967, after the draft finalized by the

: Screw Threads and Fasteners Sectional Committee had been approved bythe Mechanical Engineering Division Council.

0.2 This standard was originally issued in 1962. This revision incorporatesthe decision taken by the ISO jTC 2 Bolts, Nuts and Accessories

0.3 This standard is based on:

Draft ISO Recommendation No. 940 Washers for hexagon bolts andnuts, metric series. International Organization for Standardiza-tion.

Doc: ISO jTC 2 (Secretariat-184) 302 First draft proposal forwashers for hexagon bolts and nuts - metric series - 42 up toand including 150 mm thread diameter. International Organi-zation for Standardization.

Doc: ISO/TC 2 (Secretariat-194) 326 First draft proposal forwashers for cheese head screws - metric series - I up to andincluding 20 mm thread diameter. International Organizationfor Standardization.

DIN 125-1943 Scheiben fiir Sechskantschr uben und Muttern(Washers for hexagon bolts and nuts). Deutscher Norrnen-ausschuss.

0.4 For the purpose of deciding whether a particular requirement, of thisstandard is complied with, the final value, observed or calculated, express-ing the result of a test, shall be rounded off in accordance with IS : 2-1960*.The number of significant places retained in the rounded off value shouldbe the same as that of the specified value in this standard.

*Rules for rounding off numerical values ( revised).

3

IS: 2016- 1967

1. SCOPE

1.1 This standard lays down the requirements for plain washers of thefollowing types:

a) Machined washers, for precision and semi-precision grade ofgeneral purpose bolts and screws, in the diameter range 1'7 to155 mm;

b) Punched washers, type A, for black grade general purpose boltsand screws, in the diameter range 1'8 to 52 mm; and

c) Punched washers, tYIYeB, for slotted head screws in the diameterrange 1'8 to 22 mm.

2. MANUFACTURE

2.1 Material- Washers shall be made of steel, brass, aluminium or anyother suitable metal specified by the purchaser.

• 2.2 Worktnanship - The washers shall be free from cracks, burrs, pitsand other defects. The holes shall be reasonably concentric with the outerperiphery. All sharp edges shall be removed.

3. DESIGNATION

3.1 A washer shall be designated by name, type, size, number of thisstandard and material.

Examples:

a) A machined washer of size 10'5 mm made of brass shall bedesignated as:

Machined Washer 10'5 IS: 2016-Brass

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

Punched Washer Bl4 IS: 2016-Brass

4. DIMENSIONS

4.1 The dimensions for machined washers, punched washers, types A andB, shall be as given in Tables 1, 2 and 3 respectively ( see P 6 to 11 ). Thesetables also give the size of bolt or screw for which the washers are suitable.

4.2 The other dimensional requirements for punched washers covered inTables 2 and 3 shall be as given in IS~5369-1969*.'

*General requirements for plain washers and lock washers.

4

is : 2016 - 1967

5. 'FINISH

5.1 The plain washers shall be supplied in natural finish unless otherwis ,specified by the purchaser. At the request of the purchaser, washers m••ybe phosphate coated, nickel plated, tinned, galvanized, copper plat v , d,cadmium plated, etc. The properties of the plain washers shall i.ot,however, be impaired by the protective coating specified by thepurchaser.

6. PACKING6.1 The plain washers may be packed as recommended below:

Sizes up to 10'5 mm In boxes of 1000 piecesSizes from 13 to 19 mm In boxes of 500 piecesSizes 21 mm and above In boxes of 100 pieces.

The plain washers may also be packed in quantities of '} kgand 50 kg.

7.MARKING7.1 The packages contammg washers shall be marked with the size andmanufacturer's name or trade-mark.

7.1.1 The packages may also be marked with the ISI CertificationMark.

NOTE - The use of the ISI Certification Mark is governed by the provisions of theIndian Standards Institution ( Certification Marks) Act and the Rules and Regulationsmade thereunder. The ISI Mark on products covered by an Indian Standardconveys the assurance that they have been produced to comply with the requirementsof that standard under a well-defined system of inspection, testing and quality controlwhich is devised and supervised by ISI and operated by the producer. ISI markedproducts are also continuously checked by ISI for conformity to that standard as afurther safeguard. Details of conditions under which a licence for the use of the ISICertification Mark may be granted to manufacturers 0" processors, may be obtainedfrom the Indian Standards Institution.

:.

TECHNI~AL LrBRA~;rTEX ..leV'O I

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IS: 2016 - 1967TABLE 1 DIMENSIONS FOR MACHINED WASHERS

( Clause 4.1 )All dimensions in miIlimetres.

o

SIZE ! D S FOR BoLTe OR SCREWd H12* Basic Tol Basic TolNom SIZE

1·7 4 +0 0·3 :0·1 0·1 MI·6--D.3

(2) 5 +0 0·3 ",0·1 0·1 (MJ.8)-0·3

2·2 5 +0 0·3 =0·1 0·1 M2-0·3

(24) 6 +0 0.5 =0·1 0.2 (M2·2)-0·3

2·7 6·5 +0 0·5 =0·1 0·2 M2·5-0·3

3·2 7 +0 0·5 =0·1 0·2 M3-0·3

(3·7) 8 +0 0.8 ",0·1 0·3 (11.13·5)-0·3 ,4·3 I 9 +0 0·8 ",0·1 0·3 M4-0·3

--I I(4-8) 10 +0 1·0 "'0·1 0·4 (M4·5)-0·3

( Continued)NOTE- Sizes in brackets are of second preference.

*See IS: 919 - 1963 'Recommendations for limits and fits for engineering (revised) '.

6

IS : 2016 • 1967

TABLE 1 DIMENSIONS FOR MACIUNED WASHERS- Contd

I FOR BOLTSIZE D s e ORSCREWdH12*Basic Tol Basic Tol

Nom SIZE

5·3 IO +0 1·0 ,.,0'1 0·4 M5-0·3

6·4 12·5 +0 1-6 "'0·2 0·6 M6-0·4

(H) 14 +0 1-6 ,.,0·2 0·6 (M7)-0·4

8·4 17 +0 1-6 "'0·2 0·6 M8-0·4

10·5 21 +0 2 "'0·2 0·6 I MIO-0·5

13 24 +0 2·5 ,.,0·3 0·6 M12-0·5

(15) 28 +0 2·5 "'0·3 0·6 (MI4)-0·5

17 30 +0 3 ,.,0·3 0·6 MI6-0·5

(19) 34 +0 3 "'0·3 1·0 (MI8)-0'8- ,

+0 I21 37 -0'8 3 ,.,0·3 1.0 M20

(23) 39 +0 3 ,.,0·3 1·0 M22-0·8

25 44 +0 4 ,.,0·3 1·0 M24-0·8

(28) 50 +0

I 4 "'0·3 1'0 (M27)-0·8

31 I 56 +0 I 4 "'0·3 1·0 M30-1·0

( Continued)Note - Sizes in brackets are of second preference .

• See IS: 919-1963 'Recommendations for limits and fits for engineering (revised) '.

7/ TECH. T1 '!--. L LfHRARY

I TE MACO.

IS : 2016 - 1967

TABLE 1 DIMENSIONS FOR MACIUNED WASHERS - Contd

SIZE D S FOR BOLT\ e OR SCREWdH12*

Basic TalNom SIZEBasic Tal

(34) 60 +0 5 =0·6 1·0 (M33)-1·0

37 66 +0 5 =0·6 1·6 M36-1·0

(40) 72 +0 6 =0·6 1·6 (M39)-1·0

43 78 +0 7 =1·0 1·6 M42-1·0

(46) 85 +0 7 =1·0 i-s (M45)-1·5

50 92 +0 8 =1·0 1-6 M48-1·5

(54) 98 +0 8 =1·0 i-s (M52)-1·5

58 105 +0 9 =1·0 1·6 M56../-1·5~--

(62) 110 +0 9 =1·0 2·0 (M60)-1·5

66 115 +0 9 =1·0 2·0 M64-1·5

(70) 120 +0 10 =1·0 2·0 (M68)-1·5

74 125 +0 10 =1·0 2·0 M72-1·8

(78) 135 +0 10 =1·0 2·5 (M76)-1·8

( Continued)

NOTE - Sizes in brackets are of second preference.*Ste IS: 919 - 1963' Recommendations for limits and fits for engineering (revised) ',

8

J

IS I 2016 - 1967

TABLE 1 DIMENSIONS FOR MACIUNED WASHERS - Contd

SIZE D S FOR BOLTe OR SCREWdH12*Basic Tol Basic Tol

Nom SIZE

82 140 +0 12 * 1·2 2·5 M80-1·8

(87) 145 +0 12 * 1·2 2·5 (M85)-1·8

93 160 +0 12 *1·2 3·0 M90-1·8

(98) 165 +0 12 *1·2 3·0 (M95)-1·8

104 175 +0 14 * 1·2 3·0 MI00-1·8

(109) 180 +0 14 * 1·2 3·0 (MI05)-1.8

114 185 +0 14 * 1·2 3·0 MIlO-2

(119) 200 +0 14 *1·2 3·0 (M1l5)-2

(124) 210 +0 16 *1·2 3·0 (MI20)-2

129 220 +0 16 * 1·2 3·0 MI25-2

(134) 230 +0 16 *1·2 3·0 (M130)-2

144 240 +0 18 I * 1·2 4·0 MI40-2

I(155) 250 +0 18 * 1·2 4·0 (MI50)-2

NOTE- Sizes in brackets are of second preference.

*See IS: 919 - 1963' Recommendations for limits and fits for engineering (revised) '.

9

IS : 2016. 1967

TABLE 2 DIMENSIONS FOR PUNCHED WASHERS, TYPE A,FOR HEXAGONAL BOLTS AND SCREWS

( Clauses 4.1 and 4.2 )All dimensions in millimetres.

SIZE D S FOR BOLT ORd Nom Nom SCREW SIZE

1·8 4 0·4 MI-6(2·1) 5 0-4 (MI-8)2-4 5 0-4 M2

(2-6) 6 0-5 (M2-2)2-9 6·5 0·5 M2-53·4 7 0-5 M3

(4-0) 8 0-8 (M3-5)4-5 9 0-8 M4

(5·0) 10 I (1\.14-5)5-5 10 I M56-6 12·5 1·6 M6

(7-6) 14 . 1-6 (1\.17)9 17 1-6 M!.I

II 21 2 MIO14 24 2·5 MI2

(16) 28 2-5 (M14)18 30 3-15 MI6

(20) 31- 3-15 (MI8)22 '37 3-15 M:.!U

(24) 39 3-15 (M22)26 44 4 M24

(30) 50 4 (M27)33 56 4 M30

(36) 60 5 (M33)39 u6 5 M'36

(42) 72 6 (M39)45 78 6 M42

(4!.1) !.I5 !:; (M45)52 92 8 M48

NOTE - Sizes in brackets are of second preference.

10

IS: 2016 - 1967

TABLE 3 DIMENSIONS FOR PUNCHED WASHERS, TYPE B,FOR ROUND AND CHEESE HEAD SCREWS

( Clauses 4.1 and 4.2 )

All dimensions in millimetres.

SIZE D s FOR SCREWd Nom Nom SIZE

1·8 3·5 0·4 Ml·6(2·1) 3·5 0·4 (Ml·8)2·4 4·5 0·4 M2

(2-6) 4·5 0·5 (M2·2)2·9 5·0 0·5 M2·53·4 6·0 0·5 M3

(4-0) 7·0 0·5 (M3·5)4·5 8·0 0·8 M4

(5·0) 9·0 0·8 (M4·5)

5·5 9·5 1·0 M56·6 11 i-s M6

(7-6) 13 1·6 (M7)

9 14 1·6 M811 18 2 MI014 20 2·5 M12

(16) 24 2·5 (MI4)\8 27 3·15 MI6

(20) 30 3·15 (MI8)

22 33 3·15 M20

KOTE - Sizes in brackets are of second preference.

11

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