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“The Right to Information, The Right to Live”

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“Knowledge is such a treasure which cannot be stolen”

“Invent a New India Using Knowledge”

है”ह”ह

IS 5187 (1972): Specification for flush bolts [CED 15:Builder Hardware]

Gr 3

IS : 5187 - 1972

Indian Standard Reaffirmed 2010

SPECIFICATION FORFLUSH BOLTS

( First Revision)

First Reprint FEBRUARY 1990

UDC 683.314

© Copyright 1972

BUREAU OF INDIAN STANDARDSMANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

November 1972

IS , 5187 • 1972

Indian StandardSPECIFICATION FOR

FLUSH BOLTS

( First Revision)Builders' Hardware Sectional Committee, BDC 15

CluJimtlll/SRRI YUSUJ' MOWJEE

R,pmmhngM. C. Mowjee & Company, Calcutta; and Builden'

Hardware Industriea AlIOciatiotl of India,Calcutta

Engineer-in.Chief's Branch, Army Headquarten

Institution of Engineers ( India ), CalcuttaVertex Manufacturing Company Limited, Bombay

Indian Aluminium Company Limited, Calcutta

Railway Board ( Ministry of Railways)

De's Lock Industries, CalcuttaIndian Instituto of Architects, BombayEngineering ANociation of India, CalcuttaJayna Trading Corporation, DelhiAr¥ind Industries, Jamnagar, Gujarat

Directorate General of Supplies & Disposal.( Miniltry of Supply)

National Test House, CalcuttaGovindo Sheet Metal Works aad Foundry, CalcuttaNational BuildinlJl Organization, New Delhi

._ Central Public Works Department, NewDelhiDirector General, lSI ( Ex-officio M",./nr )

SaBI S. D. MAJUMDARSRBI AJOYBNDU PAULDB A. V. R. RAOSUBVI:YOa 01' WORU ( I )Sa1\1 D. AnTBA SIMBA,

Director ( Civ Engg )

M""bmSHRI SAHIB SINGR ( ~/""'al' to

Shri Ywuf Mowjee )SHal D. R. BAIIL

SRBI P. K. SETHI ( .illmtal, )SaBI J. P. BUAJSR.I A. K. BRIMANI

SBIlI H. C. SAMPAT ( AI"",al, )SaRI R. M. CHAUDaBI

SRln J. K. ANAND ( Alllrfl4l, )CoNTROLLER or STORBS, EASTERN

_RAILWAYSaBII". K. DBSaBI R. L. GBBLOTBSIIBI·K. p. .lUI'SlIll1 V. S. KAMBOJSRBlj. R. KANIABA

SRRI V. S. KAMBOJ ( AltImIII, )SaIlI S. C. KAPOOR

S,cr,l4ry

SBRI S. P. M&GQUSenior Technical Anist ...t (Civ Engg ), lSI

( ConlifllUd Dn pal' 2 )

BUREAU OF INDIAN STANDARDSMANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

IS I SIS7· 1972

( Continu,d from pag, I )

Door and Window Fittings Subcommittee, BDC 15: 1

Vertex Manufacturing Company Limited, Bombay

R,pm,n,ingM. C. Mowjee & Company, Calcutta

C. K. Sirkar & Company, CalcuttaBuilders' Hardware Industries As.ociation of India,

CalcuttaSHRIJ. P. JAIN Indian Hardware Industries Limited, New DelhiSURI V. S. KAMBOJ Jayna Trading Corporation, DelhiSHIn L. S. KU~IAWAT Engineer-in-Chief's Branch, Army Headquarters

SHRI S. BALAKRISIINAN ( Alternate)Snm S. K. LAlIIBI Lahiri's Architectural Industries Private Limited,

Calcutta

Conum"Sunt YUSUJ' MOWJEE

M,mbmSIIJU SAHIB SINOH ( Alternal, to

Shri Yusuf Mowjee )SURI A. K. BHIMAlU

SHRt H. C. SAMP.lT ( AI'ma', )SUBI P. BoslI:SHRIG.S.CHOWDBURY

SHRt A. K. LARtRt ( Alternate )SHRI AJOYENDU PAULSURI N. V. SHASTRISUltVJCYOR OJ' WORKS (J )

Gobindo Sheet Metal Works and Foundry, CalcuttaRailway Board ( Ministry of Railways)Central Public Works Department, New Delhi

2

Al\IENDl\IENT NO. 1 JUNE 1979TO

is: 5187 • 1972 SPECIFICATION FOR liLUSII DOLTS

(First Revision)

Aller.floD

( Page 6, clause 6.1) - Substitute the following for the existingclause:'6.l Flush bolts when assembled shall have smooth and ea sy working.Brass flush bolts shall be satin or bright-polished. Alternatively theymay be nickel or chromium plated as sr-ecilied in 15: 4827·1968· orcopper oxidizr-d in accordance with IS: 1378-1967·, 3

IS, S187·1m

Indian Standard

SPECIFICATION FORFLUSH BOLTS

( First Revision)

o. FO R E W 0 R D0.1 This Indian Standard (First Revision) was adopted by the IndianStandards Institution on 4 August 1972, after the draft finalized by theBuilders' Hardware Sectional Committee had been approved by the CivilEngineering Division Council.

0.2 This standard was first published in 1969. After reviewing thestandard in the light of comments received from users and manufacturersand the progress made by the industry, the Sectional Committee hasprepared this revision which incorporates the provision for use of extrudedaluminium alloy and flexibility in the design of flush bolts.

0.3 A number of Indian Standards have already been formulated dealingwith different items of builders' hardware. such as tower bolts, slidingdoor bolts, hinges and mortice locks. This standard lays down the requi-rements for flush bolts which are fixed on the shutter of cupboards anddoors for bolting the shutter flush with the exterior surface. This standardprovides guidance to manufacturers for their proper manufacture and tousers for getting a product of adequate quality.

0.4 While issuing this standard, the Sectional Committee took note of theacute scarcity of non-ferrous materials like copper, zinc and other alloysin the country and the need for conserving the use of the same in thenational interest. However, in view of the demand for hardware itemsmade of these materials in overseas markets, the Sectional Committee hasretained them specifically to meet the requirements of export trade. Forall Indigenous use, it is recommended that hardware items made out ofthese materials should ~ot be used.

O.S In the formulation of this standard due weightage has been given tointernational co-ordination among the standards and practices prevailingin different countries in addition to relating it to the practices in the fieldin this country.

3

IS. 5187-1971

0.6 This standard is one of the series of Indian Standards on Builders'hardware. Other standards published so far in the series are given onfourth cover ·page.0.7 This standard contains clauses 3.1 and 6.1 which caU for agreementbetween the manufacturer and the purchaser.0.8 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 or analysis, shall be rounded off in accordancewith IS: 2-1960*. The number of significant places retained in therounded off value should be the same as that of the specified value in thestandard.

1. SCOPEJ.l This standard ( First Revision) lays down the requirements for flushbolts for use in cupboards and doors.2. MATERIALS1.1 The materials used for the manufacture of flush bolts shall be asgiven in Table 1. Except spring only one material shall be used in themanufacture of all the components of flush bolts.

TABLE 1 REQUIREMENTS FOR MATERIALS FOR FLUSH BOLTS

or

EXAMPLE OJ' SUITABLlD GRAD. ININDIAN STANDABD

MATERIALITEM

Spring

Bollii)

iii)

SLNo.(I)

i)~ ~ W

Body and plate a) Cast brass Grade 3 of IS: 292·1961'b) Can aluminium IS Designation A-5-M or A-6·M of

alloy IS: 617-1959tc) Extruded aluminium IS Designation HEI9-WP or HESO·

alloy WP of IS : 733.1967:a) Cast brass Grade 3 of IS: 292-1961-h) Extruded brass IS : 319-1968§c) Extruded aluminium IS Designation HEI9-WP

alloy HE30.WP of IS: 733.1967ta) Phosphor bronze PCuSn 4 of IS : 1385-19681/b) Steel strip Any grade in IS : 2507· I965'd

·Specification for bran ingots and castings ( revis,d ).tSpecification for aluminium and aluminium alloy ingots and castings for general enai.

neering purposes ( revised).:Specification for wrought aluminium and aluminium alloYI, barl, roda, and IeCtion.

( for general engineering purposes) (first revision) .§Specification for free-cutting bra.. rods and section. (sI&oRd "vision).I/Specification for phosphor bronze rods and ban, sheet and strip, and wire (filS'

"vision ).~Specification for cold rolled steel strip for sprinl'.

·Rules for rounding off numerical values ( revis,d ).

4

0 e

IA

e e KNOB

~e 0

a-!T VPE 1

I-a-lTYPE 2

Non 1 - Number and position of screw holes are illustrative and shall conformto requirements given in Table 2 and Table 3.

NOTE 2 - The .hapet of the component parts are only illustrative and are not in.tended to limit the design. Movement 0 f the bolt may be either by means of a knob ora lever.

FlO. 1 FLUSH BoLTS

5

IS I SIS?• 1'71

3. TYPES, SiZES AND SHAPES

3.1 T) pical details 01 two types or Hush bolts are shown in Fig. I.

3.2 Flush bolts may he manufactured in sizes and shapes other than thosegiven in Fig. I by mutual a~reement between the manufacturer and thepurchaser.

4. MANUFACTURE AND CONSTRUCTION

4.1 Whcll the 10(1 IS completely In its maximum bolting position it shallbe I ct.uned ill that position by the spring and the working shall beensur cd in continuous usage.

4.2 I'ho length of thc holt shall be such that, when the bolt is pulleddown, the top of the bolt shall be either flush or not more than half therluckncs- of lip

-~

."-

.....'

.''"~

TA

BL

E1

DIM

EN

SIO

NS

OF

FL

USH

BO

LT

S(T

YP

E1

)

(C/

(J1J

US

5.1

and

5.2,

an

dF

ig.

I)

AlI

dim

ensi

on

sin

rnil

lim

etre

s,

.4-B

TF

DM

inM

in.\

fin

Min

o-.J

(I)

(2)

(3)

(4)

\5)

(6)

100

100

20..

20C

:±l

150

ISO

204

258

±1

200

200

204

308

±1

SIZ

EF

AC

EP

LA

TE

,.....-

.A-

-,

Len

gth

Bre

adth

Th

ick

nes

s

TH

RO

WO

FB

OL

T

BO

LT

DlA

LIP

Ex-

1'\

0.

OF

SC

RE

WS

IZE

or

SO

CK

ET

PL

AT

ETE~SION

HO

LE

SS

CR

EW

~_

__

_-.

A.-

---"

""'

,.--

--

""

"--

---.

HO

LE

Th

ick

nes

sL

eng

thB

olt

So

cket

FO

Rd

nd

Pla

teP

late

WO

OD

Bre

adth

SC

RE

W

Xo

.

GE

Min

.\li

n

(7)

(8)

(9)

(10)

(II)

(12)

20-l

2ti

.\1T

he

min

imu

m

Jd

imen

sio

n>

30-!

"ti

shal

lnO

!be

IIC

'!I~

than

the

504

2h

-ll

lip

exte

nsio

no

fJ

the

face

pla

te.

-fIl !.II .. ~ -J ... ~ N

-enT

AB

LE

3D

IME

NS

ION

SO

FF

LU

SH

BO

LT

S(T

YP

E2

)-- '....

(C

laus

es5.

1an

d5.

2,an

dF

ig.

I)

-:. .....A

lldi

men

sion

sm

rmll

imet

res.

..S

IZE

FAC

EPL

AT

ET

HR

OW

LIP

Dm

xx

-~O.OF

SIZ

EO

FSO

CK

ET

PL

.\T

E~

..E

XT

ES

-SC

RE

WS.

RE

WW

r--

--..

01

'SI

O:S

,---._

__

_..,A

,.--_

__~

Le

ng

thB

read

thT

bic

k-

BO

LT

SIO

S01

'B

oLT

HO

LE

SH

OL

ET

hic

k-

Len

gth

and

ness

,---

-'--

--.,

,----A

.._

_-..

FOR

ness

Bre

adth

DD

IB

olt

So

cket

WO

OD

Pla

teP

late

S<.R

EW

No

.

AB

TF

GE

Mill

Mill

Mi"

Mill

.MII

I.\J

III

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)

\II)

(12)

(13)

00

100

100

204

1520

R±

I8

±1

42

64

)

ISO

208

±1

8±

12

IIS

O..

1530

46

:t,

Th

em

inim

um

200

200

204-

1530

8±

18

±1

4-2

6di

men

sion

ssh

all

no

tbe

less

than

2SO

2SO

204

1530

8±

11

0±

15

26

:jth

eli

pate

nsi

on

(M

ill)

oft

he

face

pla

te.

300

300

204-

1530

8±

11

O±

15

26

(Mir

l)

IS r 5181· 1'72

1.1.1 Each flush bolt may also be marked with the lSI Certification~k.

NO'1'II- 'the ute of tbe lSI Certification Mark is IOvemed by the provisions ofthe Indian Standarda Institution (Certification Marks) Act. and the Rules andRetulation. made thereunder. Presence of this mark on products covered by anIndian Standard conveys the U1urance that they have been produced to comply withthe requirement. of that standard. under a well-defined system of inspection. teslingand quality control during production. This system, which is devised and supervisedby 151 and operated by the producer, has the further safeguard that the producu asactually marketed are continuously checked by lSI for conformity to the standard.Detaib of conditions. under which a licence for the use of the lSI Certification Markmay be granted to manufacturers or processors, may be obtained from ihe IndianStandarda Institution.

8. PACKING

8.1 Each flush bolt shall be wrapped in suitable paper or polyethyleneand packed in cardboard box containing 10 pieces each. The box shallbe labelled with manufacturer's name and other pal ticulars of quantity.

9. SAMPLING AND CRITERION FOR CONFORMITY

9.1 The method of selecting flush holts and the criterion for conformityshall be as given in Appendix A.

APPENDIX A( Clause 9.1 )

SAMPLING OF FLUSH BOLTS

A·I. SCALE OF SAMPLING

A-l.l Lot - In any consignment, all the flush holts of the same type- andsize and manufactured at the same 1ime, shall he- gloupe-d togethe-r toconstitute a lot.

A-I.2 The number of flush bolts, to he selected hom a lot, shall depe-ndupon the size of the lot and shall be ill accordance with col I and "'2 ofTable 4.

A-I.3 'these flush bolts shall be selected at random from at least 10 pCI·cent of the packets subject to a minimum of three, equal nurnbei 01 limitholts being selected from each such packet.

9

.S I 5111. 1"2

.\-2. NUIOBa (W taTS

.\-2.1 All the flush bolts selected as in .\-1.2 shall be checked for dimen-sional requirements ($II 5 ) and for finish ( HI , ). Any flush bolt whichfails to satisfy the requirements of dimensions or finish or both ,hall beconsidered as a defective flush bolt.

A-3. CRITERION FOR CONFORMITY

A-3.1 A lot shaJl be considered as conforming to the requimnenn of thisstandard if the number of defective bolts among those tested does notexceed the corresponding number given in col 3 of Table 4; otherwise itshall be considered as not conforming to the requlrements of this standaTd.

T.oLE" SCALE or SAMPLING AND ClUTElUON FOR OONJI'OIIMITY

( aQtlSlS A-I.2 111/11 A-3. I )

LOT SIZE

(I)

Up to 200

201 to 300

301 " 500SOl,. 800

801 and above

SAIIPLII: StEle

(2)

1520

304055

PICRMIIIIBLJ: Nu..... OJ'DXJ'Z

,BUREAU OF INDIAN STANDARDS

261 71

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