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1、INTERNATIONAL STANDARD IS0 3203 First edition 1993-l 2-l 5 Aerospace - Bolts, normal bihexagonal head, normal or pitch diameter shank, long length MJ threads, metallic material, coated or uncoated, strength classes less than or equal to 1 100 MPa - Dimensions Abonautique et espace - Vis 9 t&e bihexa
2、gonale normale, avec tige normale ou de diam&tre dgal au diamhtre sur flancs, et filetage MJ long, en matbriau m&allique, rev&es ou non revetues, des classes de rhistance infhrieures ou &gales B 1 100 M Pa - Dimensions Reference number IS0 3203.1993(E) Copyright International Organization for Standa
3、rdization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 02:58:39 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 3203:1993(E) Foreword IS0 (the International Organization for Standardization) is a worldw
4、ide federation of national standards bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on th
5、at committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. IS0 collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted b
6、y the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard IS0 3203 was prepared by Technical Committee lSO/TC 20, Aircraft and space vehicles, Sub-
7、Committee SC 4, Aerospace fastener systems. 0 IS0 1993 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without per- mission in writing from the publisher. International Organiz
8、ation for Standardization Case Postale 56 ? CH-1211 Geneve 20 ? Switzerland Printed in Switzerland ii Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 02:58:39 MDTNo reproduction
9、or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD IS0 3203:1993(E) Aerospace - Bolts, normal bihexagonal head, normal or pitch diameter shank, long length MJ threads, metallic material, coated or uncoated, strength classes less than or equal to 1 100 MPa - Dimensions 1 Sc
10、ope This International Standard specifies the dimensions of normal bihexagonal head bolts, with normal or pitch diameter shank, and long length MJ threads, in me- tallic material, coated or uncoated, with strength classes less than or equal to 1 100 MPa. It is intended for the drawing up of aerospac
11、e product standards. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publi- cation, the editions indicated were valid. All standards are subject to revision, and parties to a
12、greements based on this International Standard are encouraged to investigate the possibility of applying the most re- cent editions of the standards indicated below. Members of IEC and IS0 maintain registers of cur- rently valid International Standards. IS0 286-2:1988, IS0 system of limits and fits
13、- Part 2: Tables of standard tolerance grades and limit deviations for holes and shafts. IS0 3353: 1992, Aerospace - Rolled threads for bolts - Lead and runout requirements. IS0 4095: 1978, Fasteners for aerospace construction - B-hexagonal wrenching configuration. IS0 5855-2:1988, Aerospace - MJ th
14、reads - Part 2: Limit dimensions for bolts and nuts. 3 Configuration and dimensions See figure 1 and table 1. Dimensions and tolerances are expressed in millimetres. They are applicable after any surface coating, but before the application of any lubricant. Copyright International Organization for S
15、tandardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 02:58:39 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 3203:1993(E) Break sharp edges 0.1 to 0.4 Shape 120” optional 0” P LzLi 20” o” s Ll 4
16、 holes DT equidistant optional I) Rounded or chamfered in this area. Figure 1 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 02:58:39 MDTNo reproduction or networking permitted
17、without license from IHS -,-,- IS0 3203:1993(E) Diameter code 040 Thread ) MJ4x0,7 - 4h6h Table 1 Dl 4 4 4 4 4 4 normal pitch diameter nom. to1. nom. to1. +0.5 0 nom. to1. min. min. max H13*) 4 3.54 3 0 - -0.5 5,8 7,5 8.3 1 MJ7xl-4h6h MJ12x1,25-4h6h 1) In conformity with IS0 5855-2 2) See IS0 286-2
18、3) First length, corresponding to first L., length 4) Conditions L, min. and I+ max. cannot be obtained simultaneously 5) increments: 2forLd 100 If greater lengths are required, they shall be chosen using these increments. 6) In conformity with IS0 4095 over T min. 3 Copyright International Organiza
19、tion for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 02:58:39 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright International Organization for Standardization Provided by IHS under
20、license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 02:58:39 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standa
21、rds 1/9972545001 Not for Resale, 04/26/2007 02:58:39 MDTNo reproduction or networking permitted without license from IHS -,-,- . IS0 3203:1993(E) UDC 621.882.21:629.7 Descriptors: aircraft industry, aircraft equipment, fasteners, bolts, dimensions, dimensional tolerances. Price based on 3 oases Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 02:58:39 MDTNo reproduction or networking permitted without license from IHS -,-,-