JIS-B-1058-1995-R2005-ENG.pdf
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1、J IS t JAPANESE INDUSTRIAL STANDARD Translated and Published by Japanese Standards Association (IS0 898-7 : 1992) Mechanical properties of fasteners Part 7 : Torsional test and minimum torques for bolts and screws with nominal diameters 1 rnrn to 10 rnm IC$ 21.060.10 Descriptors : screws (bolts), bo
2、lts, threads, torsional strength, torsion testing, breaking load Reference number : JIS B 1058 : 1995 (E) 5 s Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 22:06:13 MSTNo reproduction or
3、networking permitted without license from IHS -,-,- B 1058 : 1995 (IS0 898-7 : 1992) Foreword This translation has been made based on the original Japanese Industrial Standard established by the Minister of International Trade and Industry through deliberations at Japanese Industrial Standards Commi
4、ttee in accordance with the Industrial Standardization Law: c Date of Establishment: 1995-03-01 Date of Public Notice in Official Gazette: 1995-03-01 Investigated by: Japanese Industrial Standards Committee Divisional Council on Machine Elements JIS B 1058 : 1995, First English edition published in
5、2000-06 Translated and published by: Japanese Standards Association 4-1-24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN I n the event of any doubts arising as to the contents, the original JIS is to be the final authority. 4 . O JSA2000 All rights reserved. Unless otherwise specified, no part of this
6、publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. Printed in Japan Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employ
7、ees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 22:06:13 MSTNo reproduction or networking permitted without license from IHS -,-,- JAPANESE INDUSTRIAL STANDARD JIS B 1058 : 1995 (IS0 898-7 1992) Mechanical properties of fasteners Part 7 : Torsional test and minimum torques for bolts and
8、 screws with nominal diameters 1 mm to 10 mm Foreword for Japanese Industrial Standard This Japanese Industrial Standard has been prepared based on IS0 898-7 Mechanical properties of fasteners-Part 7 : Torsional test and minimum torques for bolts and screws with nominal diameters 1 mm to 10 mm issue
9、d in 1992 as the first edition without changing the technical contents. The “Informative reference” underlined with dots in this Standard shows the matters not specified in the original International Standard. 1 Scope This Standard specifies a torsional test for the determination of the breaking tor
10、que of bolts and screws with nominal diameters 1 mm to 10 mm with property classes 8.8 to 12.9 in accordance with IS0 898-1. The test applies to bolts and screws with thread less than M3 for which no breaking and proof loads are indicated in IS0 898-1, as well as to short bolts and screws with nomin
11、al diameters 3 mm to 10 mm which cannot be subjected to a tensile test. The minimum breaking torques are not valid for hexagon socket set screws. Informative reference : IS0 898-1 is equivalent to JIS B 1051 Mechanical pro$- erties of steel bolts and screws. _ _ _ _ _. -.-_._-._ _._._-.-.-.-. 2 Norm
12、ative reference The following standard contains provisions which, through reference in this Standard, constitute provisions of this Standard. At the time of publication, the edition indicated was valid. All standards are subject to revision, and parties to agreements based on this Standard are encou
13、raged to investigate the possibility of applying the most recent edition of the standard indicated below. Members of IEC and IS0 maintain registers of currently valid International Standards. IS0 898-1 : 1988 Mechanical properties of fasteners-Part 1 : Bolts, screws and studs 3 Torsional test 3 . 1
14、to be tested into a test device. Principle Determination of the breaking torque by clamping the bolt or screw b 3 . 2 Apparatus 3 . 2 . 1 Test device for torsional test, such as is shown in Fig. 1. 3 . 2 . 2 Torquemeter, with a scale which shall not exceed the quintuple of the re- spective minimum b
15、reaking torque. The maximum inaccuracy of the torquemeter shall be t 7 % of the minimum breaking torque to be tested. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 22:06:13 MSTNo reproduc
16、tion or networking permitted without license from IHS -,-,- 2 B 1058 : 1995 (IS0 898-7 : 1992) 3.3 Test conditions The bolt or screw shall be exclusively subjected to torsion whereby the respective minimum breaking torque according to table 2 shall be reached before rupture occurs. The test result s
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