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1、A Reference number ISO 4018:1999(E) INTERNATIONAL STANDARD ISO 4018 Third edition 1999-08-15 Hexagon head screws Product grade C Vis tte hexagonale entirement filetes Grade C Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Stand
2、ards 1/9972545001 Not for Resale, 04/22/2007 19:59:24 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 4018:1999(E) ISO 1999 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic
3、 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 Organization for Standardiza
4、tion) 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 has the right to be
5、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. International Standard
6、s 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 member bodies casti
7、ng a vote. International Standard ISO 4018 was prepared by Technical Committee ISO/TC 2, Fasteners. This third edition cancels and replaces the second edition (ISO 4018:1988) which has been technically revised. Copyright International Organization for Standardization Provided by IHS under license wi
8、th ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 19:59:24 MDTNo reproduction or networking permitted without license from IHS -,-,- ISOISO 4018:1999(E) iii Introduction This International Standard is part of the complete ISO product standard series on external hexagon
9、 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) hexagon bolts with flange (ISO 4162 and ISO 15071); e) hexagon nuts with flang
10、e (ISO 4161 and ISO 10663); f) structural bolts and nuts (ISO 4775, ISO 7411 to ISO 7414 and ISO 7417). Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 19:59:24 MDTNo reproductio
11、n or networking permitted without license from IHS -,-,- Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 19:59:24 MDTNo reproduction or networking permitted without license from
12、IHS -,-,- INTERNATIONAL STANDARD ISOISO 4018:1999(E) 1 Hexagon head screws Product grade C 1 Scope This International Standard specifies the characteristics of hexagon head screws with threads from M5 up to and including M64, of product grade C. NOTE This type of product is the same as that covered
13、by ISO 4016 with the exception of threading up to head. 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 888, ISO 898-1, ISO 965-1 and ISO 4759-1. 2 Normat
14、ive 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 apply. However, parties to agreements bas
15、ed 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 ISO and IEC maintain registers of curr
16、ently 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 888:1976, Bolts, screws and studs Nominal lengths, and thread lengths for general purpose bo
17、lts. ISO 898-1:1999, Mechanical properties of fasteners made of carbon steel and alloy steel Part 1: Bolts, screws and studs. ISO 965-1:1998, ISO general purpose metric screw threads Tolerances Part 1: Principles and basic data. ISO 3269:1), Fasteners Acceptance inspection. 1) To be published. (Revi
18、sion of ISO 3269:1988) Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 19:59:24 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 4018:1999(E) ISO 2 I
19、SO 4042:1999, Fasteners Electroplated coatings. ISO 4759-1:2), Tolerances for fasteners Part 1: 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 co
20、atings. 3 Dimensions See Figure 1 and Tables 1 and 2 Symbols and description of dimensions are defined in ISO 225. 2) To be published. (Revision of ISO 4759-1:1978) 3) To be published. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Techn
21、ical Standards 1/9972545001 Not for Resale, 04/22/2007 19:59:24 MDTNo reproduction or networking permitted without license from IHS -,-,- ISOISO 4018:1999(E) 3 Dimensions in millimetres a b = 15 to 30 b End without special requirements c Incomplete thread u 2 P d Washer face permissible e Reference
22、datum for dw f ds pitch diameter Figure 1 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 19:59:24 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 4
23、018:1999(E) ISO 4 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 19:59:24 MDTNo reproduction or networking permitted without license from IHS -,-,- ISOISO 4018:1999(E) 5 Copyrig
24、ht International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 19:59:24 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 4018:1999(E) ISO 6 Table 2 Non-preferred threads D
25、imensions in millimetres Thread (d)M14M18M22M27M33M39M45M52M60 Pa 2 2,5 2,5 3 3,5 4 4,5 5 5,5 a max. 6 7,5 7,5 910,51213,51516,5 min. 2 2,5 2,5 3 3,5 4 4,5 5 5,5 cmax. 0,6 0,8 0,8 0,8 0,8 1 1 1 1 damax.16,721,226,432,438,445,452,662,671 dwmin.19,1524,8531,353846,5555,8664,774,283,41 emin.22,7829,563
26、7,2945,255,3766,4476,9588,2599,21 nom. 8,811,514172125283338 kmax. 9,2512,414,917,922,0526,0529,0534,2539,25 min. 8,3510,613,116,119,9523,9526,9531,7536,75 kwb min. 5,85 7,42 9,1711,2713,9716,7718,8722,2325,73 rmin. 0,6 0,6 0,8 1 1 1 1,2 1,6 2 snom. = max.21,0027,0034415060,070,080,090,0 min.20,1626
27、,1633404958,868,178,187,8 l c nom.min.max. 30 28,95 31,05 35 33,75 36,25 40 38,75 41,25 45 43,75 46,25 50 48,75 51,25 55 53,5 56,5 60 58,5 61,5 65 63,5 66,5 70 68,5 71,5 80 78,5 81,5 90 88,25 91,75 100 98,25101,75 110108,25111,75 120118,25121,75 130128132 140138142 150148152 160156164 180176184 2001
28、95,4204,6 220215,4224,6 240235,4244,6 260254,8265,2 280274,8285,2 300294,8305,2 320314,3325,7 340334,3345,7 360354,3365,7 380374,3385,7 400394,3405,7 420413,7426,3 440433,7446,3 460453,7466,3 480473,7486,3 500493,7506,3 a P is the pitch of the thread. b kw, min = 0,7 kmin c Range of popular lengths
29、between the solid, boldface, stepped lines. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 19:59:24 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO
30、ISO 4018:1999(E) 7 4 Specification and reference standards See Table 3. Table 3 Specifications and reference standards MaterialSteel General requirements International StandardISO 8992 Thread Tolerance8g International StandardsISO 724, ISO 965-1 Mechanical properties Property classa d 39 mm: 3.6, 4.
31、6, 4.8 d . 39 mm: as agreed International Standardd 39 mm: ISO 898-1 d . 39 mm: as agreed Tolerances Product gradeC International StandardISO 4759-1 Finish and/or coatingAs processed Requirements for electroplating are covered in ISO 4042 Requirements for non-electrolytically applied zinc flake coat
32、ings are covered in ISO 10683 If different electroplating requirements are desired or if requirements are needed for other finishes, they should be agreed between the customer and the supplier. AcceptabilityFor acceptance procedure, see ISO 3269. a For other property classes see ISO 898-1. 5 Designa
33、tion EXAMPLE A hexagon head screw, product grade C, with thread M12, nominal length l = 80 mm and property class 4.6 is designated as follows: Hexagon head screw ISO 4018 - M12 80 - 4.6 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Tech
34、nical Standards 1/9972545001 Not for Resale, 04/22/2007 19:59:24 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 4018:1999(E) ISO 8 Bibliography 1ISO 4014:1999, Hexagon head bolts Product grades A and B. 2ISO 4015:1979, Hexagon head bolts Product grade B Reduced shank (
35、shank diameter approximately equal to pitch diameter). 3ISO 4016:1999, Hexagon head bolts Product grade C. 4ISO 4017:1999, Hexagon head screws Product grades A and B. 5ISO 4032:1999, Hexagon nuts, style 1 Product grades A and B. 6ISO 4033:1999, Hexagon nuts, style 2 Product grades A and B. 7ISO 4034
36、:1999, Hexagon nuts Product grade C. 8ISO 4035:1999, Hexagon thin nuts (chamfered) Product grades A and B. 9ISO 4036:1999, Hexagon 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 c
37、ombination A/B. 12 ISO 4775:1984, Hexagon nuts for high-strength structural bolting with large width across flats Product grade 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) Produc
38、t grade C Property classes 8.8 and 10.9. 14 ISO 7412:1984, Hexagon bolts for high-strength structural bolting with large width 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 galvanize (oversize
39、 tapped) Product grades A and B Property classes 5, 6 and 8. 16 ISO 7414:1984, Hexagon nuts for structural bolting with large width across flats, style 1 Product grade B Property class 10. 17 ISO 7417:1984, Hexagon nuts for structural bolting, style 2, hot-dip galvanize (oversize tapped) Product gra
40、de A Property class 9. 18 ISO 8673:1999, Hexagon nuts, style 1, with metric fine pitch thread Product grades A and B. 19 ISO 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 g
41、rades A and B. 21 ISO 8676:1999, Hexagon head screws with metric fine pitch thread Product grades A and B. 4) To be published. (Revision of ISO 4162:1990) Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 No
42、t for Resale, 04/22/2007 19:59:24 MDTNo reproduction or networking permitted without license from IHS -,-,- ISOISO 4018:1999(E) 9 22 ISO 8765:1999, 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 15071:199
43、9, Hexagon bolts with flange Small series Product grade A. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 19:59:24 MDTNo reproduction or networking permitted without license fro
44、m IHS -,-,- ISO 4018:1999(E) ISO ICS 21.060.10 Price based on 9 pages Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 19:59:24 MDTNo reproduction or networking permitted without license from IHS -,-,-