JIS-B-1022-1999-R2005-ENG.pdf
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1、STD=JIS B LOZZ-ENGL L999 4933b08 05b34bb 3b0 J IS 8 JAPAN E S E I N DUSTR IAL STANDARD Translated and Published by Japanese Standards Association (IS0 4759-3 : 1994 Tolerances for fasteners- Part 3 : Plain washers for bolts, screws and nuts- Product grades A and C ICs 21.060.30 Descriptors : washers
2、, tolerances (measurement), fasteners Reference number : JIS B 1022 : 1999 (E) 7s Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 02:58:00 MDTNo reproduction or networking permitted without
3、 license from IHS -,-,- B 1022 : 1999 (IS0 4759-3 : 1991) Foreword This translation has been made based on the original Japanese Industrial Standard revised by the Minister of International Trade and Industry through deliberations at Japanese Industrial Standards Committee in accordance with the Ind
4、ustrial Standardization Law. Consequently JIS B 1022 : 1989 is replaced with JIS B 1022 : 1999. This revision has been made to conform with the corresponding Inter- national Standard except for Annex (informative) Measuring method of characteristic value (one example) which was described in the form
5、er Standard, JIS B 1022 : 1989. Date of Establishment: 1989-01-01 Date of Revision: 1999-01-20 Date of Public Notice in Official Gazette: 1999-01-20 Investigated by: Japanese Industrial Standards Committee Divisional Council on Machine Elements JIS B 1022: 1999, First English edition published in 20
6、00-06 Translated and published by: Japanese Standards Association 4-1-24, Akacaka, Minato-ku, Tokyo, 107-8440 JAPAN In the event of any doubts arising as to the contents, the original JIS is to be the final authority. I . O JSA2000 All rights reserved. Unless otherwise specified, no part of this pub
7、lication 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 Employees
8、/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 02:58:00 MDTNo reproduction or networking permitted without license from IHS -,-,- STD-JIS B L022-ENGL L999 4933b08 05b34b8 I133 E JAPANESE INDUSTRIAL STANDARD JIS B 1022 : 1999 (IS0 4759-3 : 1991) Toler ance s for fasteners- Part 3 : Plain w
9、ashers for bolts, screws and nuts-Product grades A and C I , Introduction This Japanese Industrial Standard has been prepared based on the second edition issued in 1991 of IS0 4759-3, Tolerances for fasteners-Part 3 : Plain washers for bolts, screws and nuts with nominal thread diameters from 1 mm u
10、p to and including 150 mm-Product grades A and C, without changing the technical contents. “Note” with dotted underlines and “Annex (informative)” with sidelines are not included in the original International Standard. 1 Scope This Japanese Industrial Standard specifies a selection of tolerances for
11、 use in the preparation of the product standards for plain washers, grades A and C, for bolts, screws and nuts with nominal thread diameters from 1 mm up to and in- cluding 150 mm. Deviations from the tolerances specified in this Standard are per- mitted in product standards only for valid technical
12、 reasons. It is recommended that these tolerances also be used for non-standard plain washers. In cases where the maximum material principle according to JIS B 0023 is ap- propriate to certain features of certain products in the product standards, other tol- erances may be applicable. The product gr
13、ades refer to the quality of the product and to the size of the tolerances, grade A being the most precise and grade C the least precise (see also JIS B 1021). Note : 2 Normative references The following standards contain provisions which, through reference in this Standard, constitute provisions of
14、 this Standard. The most recent editions of the standards indicated below shall be applied. Technical drawings-Geometrical tolerancing-Maximum material requirement and least material requirement IS0 2692 : 1988, Technical drawings-Geometrical tolerancing-Maximum material principle is identical with
15、the Part 1 of the said standard. JIS B 0023 Note : . JIS B 1021 Note : Tolerance system for threaded fasteners Any referred provisions from IS0 4759-1 : 1978, Tolerances for fasten- ers-Part 1 :Bolts, screws and nuts with thread diameters between 1.6 . . (inclusive) and 150 rnrn (inclusive) and prod
16、uct grades A, B and C are equivalent to corresponding provisions in the said standard. . t Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 02:58:00 MDTNo reproduction or networking permitte
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