BS A 307-1994 Bolts normal spline head normal or pitch diameter shank long length MJ threads metallic material coated or uncoated strength classes less than or equal to 1100 MPa Di.pdf

1、BRITISH STANDARD BS A307:1994 ISO9254:1993 Bolts, normal spline head, normal or pitch diameter shank, long length MJ threads, metallic material, coated or uncoated, strength classes lessthan or equal to1100MPa Dimensions UDC 621.882.21:629.7BSA307:1994 This BritishStandard, having been prepared unde

2、r the directionof the Aerospace Standards Policy Committee, waspublished under the authorityof the Standards Boardand comes into effect on 15August1994 BSI01-2000 The following BSI references relate to the work on this standard: Committee reference ACE/12 Draft for comment90/79028DC ISBN 0 580 23221

3、 2 Committees responsible for this BritishStandard The preparation of this BritishStandard was entrusted by the Aerospace Standards Policy Committee (ACE/-) to Technical Committee ACE/12, upon which the following bodies were represented: The Association of Electronics, Telecommunications and Busines

4、s EquipmentIndustries British Industrial Fastners Federation Ministry of Defence Society of British Aerospace Companies Ltd. Amendments issued since publication Amd. No. Date CommentsBSA307:1994 BSI 01-2000 i Contents Page Committees responsible Inside front cover National foreword ii 1 Scope 1 2 No

5、rmative references 1 3 Configuration and dimensions 1 Figure 1 2 Table 1 3 List of references Inside back coverBSA307:1994 ii BSI 01-2000 National foreword This BritishStandard has been prepared under the direction of the Aerospace Standards Policy Committee. It is identical with ISO9254:1993 Aerosp

6、ace Bolts, normal spline head, normal or pitch diameter shank, long length MJ threads, metallic material, coated or uncoated, strength classes less than or equal to1100MPa Dimensions published by the International Organization for Standardization (ISO). A British Standard does not purport to include

7、 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. Cross-references International Standard Corresponding BritishStandard ISO286-2:1988 BS

8、EN20286 ISO system of limits and fits. Part2:1992 Tables of standard tolerance grades and limit deviations for holes and shafts (Identical) ISO3353:1992 BS2A231:1993 Rolled threads for bolts. Lead and runout requirements (Identical) ISO5855-2:1988 BS6293 Aerospace MJ threads Part2:1994 Limit dimensi

9、ons for bolts and nuts (Identical) ISO7403:1983 BS A294:1984 Specification for spline drive wrenching configurations. Metric series (Identical) Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, pages1 to4, an inside back cover and a back cover. This standar

10、d 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.BSA307:1994 BSI 01-2000 1 1 Scope This International Standard specifies the dimensions of normal spline head bolts, with normalor pitch diameter s

11、hank, and long length MJthreads, in metallic material, coated or uncoated, with strength classes less than or equal to1100MPa. It is intended for the drawing up of aerospace product standards. 2 Normative references The following standards contain provisions which, through reference in this text, co

12、nstitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions

13、of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO286-2:1988, ISO system of limits and fits Part2: Tables of standard tolerance grades and limit deviations for holes and shafts. ISO3353:1992, Aerospace Rolled threads for bolts

14、Lead and runout requirements. ISO5855-2:1988, Aerospace MJ threads Part2: Limit dimensions for bolts and nuts. ISO7403:1983, Fasteners for aerospace construction Spline drive wrenching configuration Metric series. 3 Configuration and dimensions See Figure 1 and Table 1. Dimensions and tolerances are

15、 expressed in millimetres. They are applicable after any surface coating, but before the application of any lubricant. BSA307:1994 2 BSI 01-2000 Figure 1 BSA307:1994 BSI 01-2000 3 Table 1 Diameter code Thread a D 1 D 2 D 3 D 4 D 5 D 6 D 7 Normal Pitch diameter nom. tol. nom. tol. nom. tol. min. min.

16、 max. H13 b 040 MJ4 0,74h6h 4 3,54 3 6 7,5 8,3 1 050 MJ5 0,84h6h 5 4,48 3,2 3,4 0,5 7 8,3 9,1 060 MJ6 14h6h 6 5,35 4,1 4,2 8 9,8 10,6 1,4 070 MJ7 14h6h 7 h12 b 6,35 0,13 4,9 5,2 9 11,3 12,1 080 MJ8 14h6h 8 7,35 5,2 6,2 10 12,8 13,6 100 MJ10 1,254h6h 10 9,19 6,7 7,9 12 15,7 16,7 1,6 120 MJ12 1,254h6h

17、 12 11,19 8 9,8 14 18,8 19,9 Diameter code H K L 1 cde L 2 cde L 3 L 4 e P R 1 S T Wrenching dash number f min. h15 b min. max. nom. tol. nom. tol. min. 040 0,8 5,5 0,4 2 14 16 to56 3,5 0,4 2,5 060 050 1 6,5 0,5 4 16 20 to70 4,5 0,5 2,5 2,8 070 060 1,2 7,5 0,7 18 22 to84 5,2 0,7 2,8 3,5 080 070 1,4

18、8,2 20 24 to98 0,3 5,9 3,3 3,8 090 080 1,6 8,6 22 26 to112 6,3 3,7 3,9 100 100 2 10,1 0,8 6 26 32 to140 7,7 0,8 4,7 4,2 120 120 2,4 11,4 0,9 30 36 to168 8,8 0,9 5,6 4,5 140 a In conformity with ISO5855-2. b See ISO286-2. c First length, corresponding to first L 4length. d Conditions L 1 min. and L 2

19、 max. cannot be obtained simultaneously. e Increments: 2 for L 4 u 100 4 for L 4 100 If greater lengths are required, they shall be chosen using these increments. f In conformity with ISO7403 over T min. +0,5 0 0 0,5 +0,4 0 0 0,2 0 0,34 blankBSA307:1994 BSI 01-2000 List of references Seenational for

20、eword.BS A307:1994 ISO9254:1993 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter.

21、 Revisions BritishStandards are updated by amendment or revision. Users of BritishStandards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or

22、 ambiguity while using this BritishStandard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel:02089969000. Fax:02089967400. BSI offers members an individual updating service called PLUS which ensures that subscribers

23、automatically receive the latest editions of standards. Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services. Tel:02089969001. Fax:02089967001. In response to orders for international standards, it is BSI policy to supply the

24、BSI implementation of those that have been published as BritishStandards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Service. Various BSI elect

25、ronic information services are also available which give details on all its products and services. Contact the Information Centre. Tel:02089967111. Fax:02089967048. Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of s

26、tandards. For details of these and other benefits contact Membership Administration. Tel:02089967002. Fax:02089967001. Copyright Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the international standardization bodies. Except as permitted u

27、nder the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means electronic, photocopying, recording or otherwise without prior written permission from BSI. This does not preclude the free use, in the course of imp

28、lementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel:02089967070.