1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 1174-1:2011Assembly tools for screws andnuts Driving squaresPart 1: Driving squares for hand socket toolsBS ISO 1174-1:2011 BRITISH STANDARDNational forewordThis British S
2、tandard is the UK implementation of ISO 1174-1:2011. The UK participation in its preparation was entrusted to T e c h n i c a l Committee MTE/15, Hand tools.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include
3、all the necessary provisions of a contract. Users are responsible for its correct application. BSI 2011 ISBN 978 0 580 67807 3 ICS 25.140.30 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Polic
4、y and Strategy Committee on 31 August 2011.Amendments issued since publicationDate T e x t a f f e c t e dBS ISO 1174-1:2011Reference numberISO 1174-1:2011(E)ISO 2011INTERNATIONAL STANDARD ISO1174-1Second edition2011-04-15Assembly tools for screws and nuts Driving squares Part 1: Driving squares for
5、 hand socket tools Outils de manuvre pour vis et crous Carrs dentranement Partie 1: Carrs dentranement pour outils main BS ISO 1174-1:2011ISO 1174-1:2011(E) COPYRIGHT PROTECTED DOCUMENT ISO 2011 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilize
6、d in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 4
7、1 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2011 All rights reservedBS ISO 1174-1:2011ISO 1174-1:2011(E) ISO 2011 All rights reserved iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
8、 (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations,
9、governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/
10、IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the me
11、mber bodies casting a vote. ISO 1174-1 was prepared by Technical Committee ISO/TC 29, Small tools, Subcommittee SC 10, Assembly tools for screws and nuts, pliers and nippers. This second edition cancels and replaces the first edition (ISO 1174-1:1996), Table 1 and Figure 2 of which have been technic
12、ally revised. ISO 1174 consists of the following parts, under the general title Assembly tools for screws and nuts Driving squares: Part 1: Driving squares for hand socket tools Part 2: Driving squares for power socket tools BS ISO 1174-1:2011BS ISO 1174-1:2011INTERNATIONAL STANDARD ISO 1174-1:2011(
13、E) ISO 2011 All rights reserved 1Assembly tools for screws and nuts Driving squares Part 1: Driving squares for hand socket tools 1 Scope This part of ISO 1174 specifies the dimensions, separation force and designation of driving squares for hand socket tools. NOTE Driving squares for power socket t
14、ools are dealt with in ISO 1174-2. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments)
15、applies. ISO 3, Preferred numbers Series of preferred numbers ISO 286-1, Geometrical product specifications (GPS) ISO code system for tolerances on linear sizes Part 1: Bases of tolerances, deviations and fits 3 Dimensions 3.1 General Nominal dimensions of driving squares, in millimetres, have been
16、selected from the values of the R 10 series of preferred numbers in accordance with ISO 3. 3.2 Interchangeability Driving square maximum and minimum dimensions have been selected for the types of tool described in 3.3 and 3.4 so as to allow for interchangeability, whatever the measurement system use
17、d. Deviations, between maximum and minimum dimensions correspond for s1, to tolerances of grade IT11 in accordance with ISO 286-1, and for s2, to tolerances of grade IT13 in accordance with ISO 286-1. When using male square drives with a plunger retainer instead of a ball, only female squares with r
18、etaining holes as opposed to recesses should be used. BS ISO 1174-1:2011ISO 1174-1:2011(E) 2 ISO 2011 All rights reserved3.3 Male squares See Figures 1 and 2 and Table 1. Figure 1 Type A with ball Figure 2 Type B with plunger retainer Table 1 Male square dimensions Types A and B Dimensions in millim
19、etres s1d1d2e1l1l3l4r1Typeanom. max. min. max. max. min. max. nom. tol. min.bmax. A (B) 6,3 6,35 6,26 3 2 8,4 8,0 7,5 4 0,2 0,9 0,5 A (B) 10 9,53 9,44 5 2,6 12,7 12,2 11 5,5 0,2 0,9 0,6 A (B) 12,5 12,70 12,59 6 3 16,9 16,3 15,5 8 0,3 1,0 0,8 B (A) 20 19,05 18,92 7 4,3 25,4 24,4 23 10,2 0,3 1,0 1,2 B
20、 25 25,40 25,27 5 34,0 32,4 28 15 0,3 1,0 1,6 NOTE It is not recommended that types B and C be used together. aTypes given in brackets are non-preferred. bRounded values given, based on the calculation l4,min= s2,max s1,min+ 0,5 mm. BS ISO 1174-1:2011ISO 1174-1:2011(E) ISO 2011 All rights reserved 3
21、3.4 Female squares See Figures 3 and 4 and Table 2. aChamfered or rounded in conformity with radius, r1, of the male square. Figure 3 Type C aChamfered or rounded in conformity with radius, r1, of the male square. Figure 4 Type D BS ISO 1174-1:2011ISO 1174-1:2011(E) 4 ISO 2011 All rights reservedTab
22、le 2 Female square dimensions Types C and D Dimensions in millimetres s2d3e2l2l3r2t1Typeanom. max. min. min. min. min. nom. tol. C, D 6,3 6,63 6,41 2,5 8,5 8 4 0,2 C (D) 10 9,80 9,58 5 12,9 11,5 5,5 0,2 C (D) 12,5 13,03 12,76 6 17,1 16 8 0,3 4 3 D 20 19,44 19,11 6 25,6 24 10,2 0,3 4 3,5 D 25 25,79 2
23、5,46 6,5 34,4 29 15 0,3 6 4 NOTE It is not recommended that types B and C be used together. aTypes given in brackets are non-preferred. 4 Separation force When the male and female squares are locked, the force that shall be applied in order to separate the two parts shall not be less than 4 N for th
24、e 6,3 mm square, 11 N for the 10 mm square, 25 N for the 12,5 mm square, and 45 N for the 20 mm square. The force shall be applied gradually along the axis of the squares. NOTE The values of separation force apply to tools in the delivery condition and to parts supplied by one manufacturer. 5 Design
25、ation A driving square for hand socket tools in accordance with this part of ISO 1174 shall be designated by a) “Male square” or “Female square”, as appropriate; b) reference to this part of ISO 1174, i.e. ISO 1174-1; c) type; d) nominal dimension of driving square, in millimetres. EXAMPLE A male dr
26、iving square for hand socket tools type A with nominal dimension 12,5 mm is designated as follows: Male square ISO 1174-1 A 12,5 BS ISO 1174-1:2011BS ISO 1174-1:2011ISO 1174-1:2011(E) ICS 25.140.30 Price based on 4 pages ISO 2011 All rights reserved This page deliberately left blankBSI is the indepe
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