1、BRITISH STANDARD BS 6487:1984 ISO 7378:1983 Specification for Split pin holes and wire holes in bolts, screws and studs ISO title: Fasteners Bolts, screws and studs Split pin holes and wire holes UDC 621.882.092.4BS6487:1984 This British Standard, having been prepared under the directionof the Mecha
2、nical Engineering Standards Committee, was published underthe authority of the BoardofBSI and comes intoeffecton 30March1984 BSI 09-1999 The following BSI references relate to the work on this standard: Committee reference MEE/60 Draft for comment82/70261 DC ISBN 0 580 13775 9 Committees responsible
3、 for this British Standard The preparation of this British Standard was entrusted by the Mechanical Engineering Standards Committee (MEE/-) to Technical Committee MEE/60 upon which the following bodies were represented: Beama British Constructional Steelwork Association British Industrial Fasteners
4、Federation British Internal Combustion Engine Manufacturers Association British Railways Board British Steel Industry (Wire Section) Department of Trade and Industry (National Engineering Laboratory) Federation of British Hand Tool Manufacturers Gauge and Tool Makers Association Ministry of Defence
5、Society of Motor Manufacturers and Traders Limited Telecommunication Engineering and Manufacturing Association (TEMA) Washer Manufacturers Association of Great Britain The following body was also represented in the drafting of the standard, through subcommittees and panels: Fasteners and Turned Part
6、s Institute Amendments issued since publication Amd. No. Date of issue CommentsBS6487:1984 BSI 09-1999 i Contents Page Committees responsible Inside front cover National foreword ii 1 Scope and field of application 1 2 Reference 1 3 Dimensions 1 Table 1 2 Table 2 2 Publications referred to Inside ba
7、ck coverBS6487:1984 ii BSI 09-1999 National foreword This British Standard has been prepared under the direction of the Mechanical Engineering Standards Committee and is identical with ISO7378:1983 “Fasteners Bolts, screws and studs Split pin holes and wire holes” published by the International Orga
8、nization for Standardization (ISO). Terminology and conventions. The text of the International Standard has been approved as suitable for publication as a British Standard without deviation. Some terminology and certain conventions are not identical with those used in British Standards; attention is
9、 drawn especially to the following. The comma has been used as a decimal marker. In British Standards it is current practice to use a full point on the baseline as the decimal marker. Where the words “International Standard” appear, referring to this standard, they should be read as “British Standar
10、d”. Additional information. For details of limits and fits and the tolerance fields referred to inTable 1 andTable 2, reference may be made to BS4500 “ISO limits and fits” Part 1:1969 “General, tolerances and deviations” for which the technically equivalent International Standard is ISO/R286:1962 “I
11、SO system for limits and fits” Part 1 “General, tolerances and deviations”. 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 confe
12、r immunity from legal obligations. Cross-reference International Standard Corresponding British Standard ISO 4759-1 BS 6322 Tolerances for fasteners Part 1:1982 Specification for tolerances of bolts, screws and nuts with thread diameters W 1.6mm and u 150mm and product grades A, B and C (Identical)
13、Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages1 and 2, an inside back cover 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 insid
14、e front cover.BS6487:1984 BSI 09-1999 1 1 Scope and field of application This International Standard lays down the dimensions and position of split pin holes and wire holes for bolts, screws and studs, recommended for use unless otherwise specified in the appropriate product standard. 2 Reference IS
15、O 4759-1, Tolerances for fasteners Part 1: Bolts, screws and nuts with thread diameters between 1,6 (inclusive) and150mm (inclusive) and product grades A, B and C. 3 Dimensions 3.1 Split pin holesBS6487:1984 2 BSI 09-1999 Table 1 3.2 Wire holes Table 2 Dimensions in millimetres Thread diameter, d 4
16、5 6 7 8 10 12 14 16 18 20 d l H14 1 1,2 1,6 1,6 2 2,5 3,2 3,2 4 4 4 l e min. 2,3 2,6 3,3 3,3 3,9 4,9 5,9 6,5 7 7,7 7,7 Thread diameter, d 22 24 27 30 33 36 39 42 45 48 52 d l H14 5 5 5 6,3 6,3 6,3 6,3 8 8 8 8 l e min. 8,7 10 10 11,2 11,2 12,5 12,5 14,7 14,7 16 16 NOTEThe value for l hmust be calcula
17、ted for each application, but the hole should not be nearer the end of the fastener than l e min.after taking into account the cumulative tolerances on l hand l. In general, a tolerance of for l his practicable in production. Dimensions in millimetres Thread diameter, d 4 5 6 7 8 10 12 14 16 18 20 d
18、 l H14 1,2 1,2 1,6 1,6 2 2 2 2 3 3 3 Thread diameter, d 22 24 27 30 33 36 39 42 45 48 52 d l H14 3 3 3 3 4 4 4 4 4 4 5 +IT 14 0BS6487:1984 BSI 09-1999 Publications referred to See national foreword.BS 6487:1984 ISO 7378:1983 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI
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