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1、A Reference number ISO 4034:1999(E) INTERNATIONAL STANDARD ISO 4034 Third edition 1999-08-15 Hexagon nuts Product grade C crous hexagonaux Grade C ISO 4034:1999(E) ISO 1999 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by an
2、y means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Organization for Standardization Case postale 56 CH-1211 Genve 20 Switzerland Internetisoiso.ch Printed in Switzerland ii Foreword ISO (the International Organizat
3、ion for Standardization) is a worldwide federation of national standards bodies (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 h
4、as the right to be represented on that committee. International organizations, 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. Int
5、ernational Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. 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
6、member bodies casting a vote. International Standard ISO 4034 was prepared by Technical Committee ISO/TC 2, Fasteners. This third edition cancels and replaces the second edition (ISO 4034:1986) which has been technically revised. -,-,- ISOISO 4034:1999(E) iii Introduction This International Standard
7、 is part of the complete ISO product standard series on external hexagon drive fasteners. The series comprises: a) hexagon head bolts (ISO 4014 to ISO 4016 and ISO 8765); b) hexagon head screws (ISO 4017, ISO 4018 and ISO 8676); c) hexagon nuts (ISO 4032 to ISO 4036, ISO 8673 to ISO 8675); d) hexago
8、n bolts with flange (ISO 4162 and ISO 15071); e) hexagon nuts with flange (ISO 4161 and ISO 10663); f) structural bolts and nuts (ISO 4775, ISO 7411 to ISO 7414 and ISO 7417). -,-,- INTERNATIONAL STANDARD ISOISO 4034:1999(E) 1 Hexagon nuts Product grade C 1 Scope This International Standard specifie
9、s the characteristics of hexagon nuts with threads from M5 up to and including M64 and product grade C. If, in special cases, specifications other than those listed in this International Standard are required, they should be selected from existing International Standards, for example ISO 724, ISO 89
10、8-2, ISO 965-1 and ISO 4759-1. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not ap
11、ply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of
12、 ISO and IEC maintain registers of currently valid International Standards. ISO 225:1983, Fasteners Bolts, screws, studs and nuts Symbols and designations of dimensions. ISO 724:1993, ISO general-purpose metric screw threads Basic dimensions. ISO 898-2:1992, Mechanical properties of fasteners Part 2
13、: Nuts with specified proof load values Coarse thread. ISO 965-1:1998, ISO general purpose metric screw threads Tolerances Part 1: Principles and basic data. ISO 3269:1), Fasteners Acceptance inspection. ISO 4042:1999, Fasteners Electroplated coatings. ISO 4759-1:2), Tolerances for fasteners Part 1:
14、 Bolts, screws, studs and nuts Product grades A, B and C. ISO 8992:1986, Fasteners General requirements for bolts, screws, studs and nuts. ISO 10683:3), Fasteners Non-electrolytically applied zinc flake coatings. 1) To be published. (Revision of ISO 3269:1988) 2) To be published. (Revision of ISO 47
15、59-1:1978) 3) To be published. ISO 4034:1999(E) ISO 2 3 Dimensions See Figure 1 and Tables 1 and 2. Symbols and descriptions of dimensions are defined in ISO 225. a b = 15 to 30 b Countersink at start of thread permissible Figure 1 Table 1 Preferred threads Dimensions in millimetres Thread (d)M5M6M8
16、M10M12M16M20 Pa 0,81 1,251,5 1,7522,5 dwmin.6,78,711,514,516,52227,7 emin.8,6310,8914,217,5919,8526,1732,95 mmax.5,66,47,99,512,215,919,0 min.4,44,96,48,010,414,116,9 mwmin.3,53,75,16,48,311,313,5 snom. = max.8,0010,0013,0016,0018,0024,0030,00 min.7,64 9,6412,5715,5717,5723,1629,16 Thread (d)M24M30M
17、36M42M48M56M64 Pa 33,54 4,555,56 dwmin.33,342,851,16069,578,788,2 emin.39,5550,8560,7971,382,693,56104,86 mmax.22,326,431,934,938,945,952,4 min.20,224,329,432,436,443,449,4 mwmin.16,219,423,225,929,134,739,5 snom. = max.364655,065,075,085,095,0 min.354553,863,173,182,892,8 a P is the pitch of the th
18、read. -,-,- ISOISO 4034:1999(E) 3 Table 2 Non-preferred threads Dimensions in millimetres Thread (d)M14M18M22M27M33M39M45M52M60 Pa 22,52,533,544,555,5 dwmin.19,224,931,43846,655,964,774,283,4 emin.22,7829,5637,2945,255,3766,4476,9588,2599,21 m max.13,916,920,224,729,534,336,942,948,9 min.12,115,118,
19、122,627,431,834,440,446,4 mwmin.9,712,114,518,121,925,427,532,337,1 s nom. = max.21,0027,0034415060,070,080,090,0 min.20,1626,1633404958,868,178,187,8 a P is the pitch of the thread. 4 Specifications and reference standards See Table 3. Table 3 Specification and reference standards MaterialSteel Gen
20、eral requirements International Standard ISO 8992 ThreadTolerance7H International Standards ISO 724, ISO 965-1 Mechanical properties Property classa d M16: 5 M16 , d M39: 4, 5 d . M39: as agreed International Standard d M39: ISO 898-2 d . M39: as agreed TolerancesProduct gradeC International Standar
21、d ISO 4759-1 Finish and/or coatingAs processed Requirements for electroplating are covered in ISO 4042. Requirements for non-electrolytically applied zinc flake coatings are covered in ISO 10683. If different electroplating requirements are desired or if requirements are needed for other finishes, t
22、hey should be agreed between customer and supplier. AcceptabilityFor acceptance procedure, see ISO 3269. a For other property classes see ISO 898-2. ISO 4034:1999(E) ISO 4 5 Designation EXAMPLE A hexagon nut with thread M12 and property class 5 is designated as follows: Hexagon nut ISO 4034 - M12 -
23、5 -,-,- ISOISO 4034:1999(E) 5 Bibliography 1ISO 4014:1999, Hexagon head bolts Product grades A and B. 2ISO 4015:1979, Hexagon head bolts Product grade B Reduced shank (shank diameter approximately equal to pitch diameter). 3ISO 4016:1999, Hexagon head bolts Product grade C. 4ISO 4017:1999, Hexagon h
24、ead screws Product grades A and B. 5ISO 4018:1999, Hexagon head screws Product grade C. 6ISO 4032:1999, Hexagon nuts, style 1 Product grades A and B. 7ISO 4033:1999, Hexagon nuts, style 2 Product grades A and B. 8ISO 4035:1999, Hexagon thin nuts (chamfered) Product grades A and B. 9ISO 4036:1999, He
25、xagon thin nuts (unchamfered) Product grade B. 10 ISO 4161:1999, Hexagon nuts with flange Coarse thread. 11 ISO 4162:4), Hexagon bolts with flange Small series Product grade combination A/B. 12 ISO 4775:1984, Hexagon nuts for high-strength structural bolting with large width across flats Product gra
26、de B Property classes 8 and 10. 13 ISO 7411:1984, Hexagon bolts for high-strength structural bolting with large width across flats (thread lengths according to ISO 888) Product grade C Property classes 8.8 and 10.9. 14 ISO 7412:1984, Hexagon bolts for high-strength structural bolting with large widt
27、h across flats (short thread length) Product grade C Property classes 8.8 and 10.9. 15 ISO 7413:1984, Hexagon nuts for structural bolting, style 1, hot-dip galvanized (oversize tapped) Product grades A and B Property classes 5, 6 and 8. 16 ISO 7414:1984, Hexagon nuts for structural bolting with larg
28、e width across flats, style 1 Product grade B Property class 10. 17 ISO 7417:1984, Hexagon nuts for structural bolting, style 2, hot-dip galvanized (oversize tapped) Product grade A Property class 9. 18 ISO 8673:1999, Hexagon nuts, style 1, with metric fine pitch thread Product grades A and B. 19 IS
29、O 8674:1999, Hexagon nuts, style 2, with metric fine pitch thread Product grades A and B. 20 ISO 8675:1999, Hexagon thin nuts (chamfered) with metric fine pitch thread Product grades A and B. 21 ISO 8676:1999, Hexagon head screws with metric fine pitch thread Product grades A and B. 22 ISO 8765:1999
30、, Hexagon head bolts with metric fine pitch thread Product grades A and B. 23 ISO 10663:1999, Hexagon nuts with flange Fine pitch thread. 24 ISO 15071:1999, Hexagon bolts with flange Small series Product grade A. 4) To be published. (Revision of ISO 4162:1990) -,-,- ISO 4034:1999(E) ISO ICS 21.060.20 Price based on 5 pages -,-,-