BRITISH STANDARD AUTOMOBILE SERIES BS AU 50 3 4a 1980 ISO 4570 3 1980 Incorporating Amendment No 1 Specification for Tyres and wheels — Part 3 Valves — Section 4a Tyre valve threads 8V2, 10V1, 11V1, 1[.]
BRITIS H S TAND ARD AUTO MO BILE S E RIE S BS AU -3 a: 980 IS O 70 -3 : 980 Incorp orating Am endm ent No Specification for Tyres and wheels — Part : Valves — Section a: Tyre valve threads 8V2 , V1 , 1 V1 , V2 , V1 , 6V1 , 7V1 , 7V2 , 7V3 , 9V1 and V1 UD C 62 1 5 – : 62 882 82 Reprodu ced by I H S u n d er l i cen se wi th BSI - U n trol l ed Copy BS AU 0-3.4a:1 980 This Britis h S tandard, having b een p rep ared under the direction of the Automob ile S tandards C ommittee, was p ub lis hed under the authority of the E xecutive Board and Amendments issued since publication comes into effect on Augus t 980 Amd No D ate of is s ue C omments 41 2 Novemb er Indicated b y a s ideline in the margin © BS I - 00 982 The following BS I references relate to the work on this s tandard: C omm ittee reference AUE /4 D raft for com ment 9/72 87 D C ISBN 80 1 74 Reprodu ced by I H S u n d er l i cen se wi th BSI - U n trol l ed Copy BS AU 0-3.4a:1 980 Contents Page National foreword © BSI 02 - 000 Reprodu ced by I H S u n d er l i cen se wi th BSI - U n trol l ed Copy ii Scope and field of application References D esignation Profile Thread gauging Tab le — D esignation Tab le — Limit dimensions Tab le — Limiting dimensions i BS AU 0-3.4a:1 980 National foreword This Section of this Part of BS AU 50, prepared under the direction of the Automobile Standards Committee, is identical with ISO 4570- 3: 980 “Tyre threads — Part 3: Threads 8V2, 7V3, 9V1 , 20V1 0V1 , 1 V1 , 3V2, 5V1 , 6V1 , 7V1 , v alv e 7V2, ” published by the International Organization for Standardization (ISO) Sections , and of this Part deal with valve dimensions Other Parts of the standard are: — Part : Tyres; — Part 2: Wheels and rim s ISO 4570- 3: 980 (E)/Erratum was implemented as Amendment No to this standard Terminology and conventions The text of the International Standard has been approved as suitable for publication, without deviation, as a British Standard Some terminology and certain conventions are not identical with those used in British Standards; attention is especially drawn to the following Where the words “International Standard” appear, referring to this standard, they should be read as “British Standard” The comma has been used throughout as a decimal marker In British Standards it is current practice to use a full point on the baseline as the decimal marker Cross-reference International Standard ISO 502: 978 C orresponding British Standard BS 91 Screw gauge lim its and tolerances Part 3: 968 Gauges for ISO m etric screw threads (Technically equivalent) The corresponding British Standard for ANSI Standard B1 is BS 91 “Screw gauge lim its and tolerances threads o f Unified form , ” Part 4: 964 “Lim its diam eters to the ANSI Standard ! of size fo r gauges for screw in and larger ” It is technically equivalent A British Standard does not purport to include all the necessary provisions of a contract Users of British Standards are responsible for their correct application Compliance with a British Standard does not of itself confer immunity from legal obligations Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages to and a back cover This standard has been updated (see copyright date) and may have had amendments incorporated This will be indicated in the amendment table on the inside front cover ii Reprodu ced by I H S u n d er l i cen se wi th BSI - U n trol l ed Copy © BSI 02- 2000 BS AU -3 4a: 980 Scop e and field of application This International S tandard s p ecifies limit dimensions and tolerances for tyre valve threads 8V2 , V1 , 1 V1 , V2 , V1 , 6V1 , V1 , 7V2 , V3 , 9V1 et V1 References IS O 02 , ISO general p urp ose m etric threads — Gauging ANS I B1 , Gauges and gauging for unified inch s crew threads D esignation The des ignations s hall b e as given in Tab le Tab le — D e signation Nominal dime nsion, m m 7, 9, 11,1 12,7 15 5, 17 7, × × × × × × × × , 05 D e signation 8V2 , 00 V1 , 270 1 V1 0, 79 V2 , 00 V1 0, 941 6V1 , 00 V1 , 05 V2 7, × , 88 V3 19 × , 88 V1 20, ì , 00 V1 â BS I - 00 Reprodu ced by I H S u n d er l i cen se wi th BSI - U n trol l ed Copy BS AU 0-3.4a:1 980 Profile Table — Limit dimensions (see Table 2) Thread gauging Threads 0V1 , 5V1 , 7V1 and 20V1 should be verified according to the specifications given below The minimum and maximum values have been calculated to make it possible to apply the limit gauge inspection principles specified in ISO 502 to the threads 0V1 , 5V1 , 7V1 and 20V1 For the elaboration of the gauges, the following tolerances extracted from ISO 502 have been chosen: d) — outside diameter of external thread (d) — pitch diameter of internal thread (D ) — inside diameter of internal thread (D ) — pitch diameter of external thread ( 2 4m < Td 36 4m < T 24 d T 38 4m < T 24 4m < D2 D1 < 4m 85 4m < 50 4m < 00 4m < 50 Threads 8V2, 1 V1 , 3V2, 6V1 , 7V2, 7V3, 9V1 , should be verified according ANSI B1 2 Reprodu ced by I H S u n d er l i cen se wi th BSI - U n trol l ed Copy © BSI 02- 2000 © BS I - 00 9, 11,1 12,7 15 5, 17 7, 7, 19 20, 0V1 1 V1 V2 V1 6V1 7V1 7V2 7V3 9V1 0V1 × × × × × × × × × × × , 00 , 88 , 88 , 05 , 00 0, 941 , 00 0, 79 , 270 , 00 , 058 p itch Reprodu ced by I H S u n d er l i cen se wi th BSI - U n trol l ed Copy 7, × D iameter 8V2 Designation Nominal dimensions 0, 40 9, 01 1 7, 42 7, 43 6, 90 , 847 4, 90 , 67 1 , 07 9 , 65 , 909 max 0, 1 0, 0, 0, 82 0, 05 0, 70 0, 05 0, 0, 05 0, 00 0, 82 d T Tolerance , 90 8, 74 , 89 7, 50 6, 95 , 677 4, 95 2, 523 , 874 9, 5 7, 7 , 81 , 80 6, 95 6, 43 6, 1 5, 35 4, 1 , 59 0, 54 9, 7, 2 max 0, 1 0, 0, 0, 00 0, 05 , 09 0, 05 , 089 0, 07 0, 00 , 09 d Tolerance T , 700 , 85 6, 74 6, 643 6, 05 5, 38 4, 05 , 070 , 47 9, 21 7, d d Pitch diameter Maj or diameter Screw 1 9, 052 , 63 , 478 6, 5, 552 4, 694 3, 552 1 , 01 9, 2 8, 5 6, 61 max d , 642 9, 050 , 463 , 463 7, 37 , 875 5, 37 , 00 11,113 9, 800 7, D Maj or diameter Minor diameter Table — Limiting dimensions 9, 995 8, 83 6, 88 6, 906 6, 485 , 89 4, 485 , 98 0, 42 9, 480 7, 71 max 0, 1 0 , 64 0, 56 0, 31 0, 05 0, 0, 05 0, 1 0, 37 0, 00 0, D T Tolerance D 9, 885 8, 6, 43 6, 75 6, 80 , 63 4, 80 , 85 0, 87 9, 80 7, Pitch diameter Nut , 45 , 678 6, 03 6, 60 5, 950 , 88 3, 950 , 039 0, 033 8, 00 7, m ax 0, 00 0, 5 0, 5 0, 0, 00 0, 2 0, 00 0, 02 0, 04 0, 0, D T Tolerance D 9, 7, 3 , 748 6, , 75 4, 85 , 75 1 , 83 9, 72 8, 75 6, 782 Minor diameter D imens ions in m illimetres BS AU 50-3.4a:1 980 BS AU 0-3.4a:1 980 ISO 45 70-3: BSI — British Standards Institution 980 BS I is the indep endent national b ody res p ons ib le for p rep aring Britis h S tandards It p res ents the UK view on s tandards in E urop e and at the international level It is incorp orated b y Royal C harter Revisions Britis h S tandards are up dated b y amendment or revis ion Us ers of Britis h S tandards should make s ure that they p oss es s the latest amendments or editions It is the constant aim of BS I to imp rove the quality of our p roducts and services We would b e grateful if anyone finding an inaccuracy or amb iguity while us ing this Britis h S tandard would inform the S ecretary of the technical committee res p ons ib le, the identity of which can b e found on the inside front cover Tel: 02 89 96 90 00 Fax: 02 89 96 40 BS I offers memb ers an individual up dating s ervice called PLUS which ens ures that s ub s crib ers automatically receive the lates t editions of s tandards Buying standards O rders for all BS I, international and foreign s tandards p ub lications s hould b e addres s ed to C us tomer S ervices Tel: 899 00 Fax: 899 7001 In res p ons e to orders for international standards , it is BS I p olicy to sup p ly the BS I imp lementation of thos e that have b een p ub lis hed as Britis h S tandards, unless otherwis e requested Information on standards BS I p rovides a wide range of information on national, E urop ean and international standards through its Lib rary and its Technical H elp to E xp orters S ervice Various BS I electronic information s ervices are also availab le which give details on all its p roducts and s ervices C ontact the Information C entre Tel: 02 89 96 71 1 Fax: 02 89 96 048 S ub s crib ing memb ers of BS I are kep t up to date with s tandards develop ments and receive sub s tantial discounts on the p urchase p rice of s tandards For details of thes e and other b enefits contact Memb ership Adminis tration Tel: 02 89 96 70 02 Fax: 02 89 96 00 Copyright C op yright s ub s is ts in all BS I p ub lications BS I als o holds the cop yright, in the UK, of the p ub lications of the international s tandardization b odies E xcep t as p ermitted under the C op yright, D es igns and Patents Act 988 no extract may b e rep roduced, s tored in a retrieval s ystem or transmitted in any form or b y any means – electronic, p hotocop ying, recording or otherwis e – without p rior written p ermis s ion from BS I This does not p reclude the free us e, in the cours e of imp lementing the standard, of necess ary details such as s ymb ols, and size, typ e or grade designations If thes e details are to b e used for any other p urp os e than imp lementation then the p rior written p ermiss ion of BS I must b e ob tained If p ermis sion is granted, the terms may include royalty p ayments or a licensing agreement D etails and advice can b e ob tained from the C op yright Manager BS I 89 C his wick H igh Road London W4 4AL Reprodu ced by I H S u n d er l i cen se wi th BSI - 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