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1、J IS JAPANESE I N DCJSTR IAL STANDARD Translated and Published by Japanese Standards Association Hexalobular socket head cap screws ICs 21.060.10 Reference number : JIS B 1136 : 2004 (E) PROTECTED BY COPYRIGHT 7 s Copyright Japanese Standards Association Provided by IHS under license with JSALicense
2、e=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 09:11:47 MDTNo reproduction or networking permitted without license from IHS -,-,- B 1136 : 2004 (IS0 14579 : 2001) Foreword This translation has been made based on the original Japanese Industrial Standard established by the M
3、inister of Economy, Trade and Industry through deliberations at the Japanese Industrial Standards Committee according to the proposal of establishing a Japanese Industrial Standard from The Japan Research Institute for Screw Threads and Fasteners (JFRI)! Japanese Standards Association (JSA), with a
4、draft of Industrial Standard based on the provision of Article 12 Clause 1 of the Industrial Standardization Law. This Standard has been made based on IS0 14579 : 2001 Hexalobular socket head cap screws for the purposes of making it easier to compare this Standard with International Standard; to pre
5、pare Japanese Industrial Standard conforming with International Standard; and to propose a draft of an International Standard which is based on Japanese Industrial Standard. Attention is drawn to the possibility that some parts of this Standard may conflict with a patent right, application for a pat
6、ent after opening to the public, utility model right or application for registration of utility model after opening to the public which have technical properties. The relevant Minister and the Japanese Industrial Standards Committee are not responsible for identifying the patent right, application f
7、or a patent after opening to the public, utility model right or application for registration of utility model after opening to the public which have the said technical properties. Date of Establishment: 2004-03-20 Date of Public Notice in Official Gazette: 2004-03-22 Investigated by: Japanese Indust
8、rial Standards Committee Standards Board Technical Committee on Machine Elements JIS B 1136 : 2004, First English edition published in 2004-06 Translated and published by: Japanese Standards Association 4-1-24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN In the event of any doubts arising as to the co
9、ntents, the original JIS is to be the final authority. O JSA 2004 All rights reserved. Unless otherwise specified, 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 permission in writing from
10、 the publisher. Printed in Japan PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 09:11:47 MDTNo reproduction or networking permitted without license from IHS -,-,- B
11、1136 : 2004 (IS0 14579 : 2001) Contents Page Introduction . 1 Scope 2 Normative references 3 Dimensions . 4 Specifications and reference standards . 5 Designation Annex A (informative) Masses of carbon steel screws (i) PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS u
12、nder license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 09:11:47 MDTNo reproduction or networking permitted without license from IHS -,-,- JAPANESE INDUSTRIAL STANDARD JIS B 1136 : 2004 (IS0 14579 : 2001) Hexalobular socket head cap screws Introduction Th
13、is Japanese Industrial Standard has been prepared based on the first edition of IS0 14679 : 2001 Hexalobular socket head cup screws without modi- fying the technical contents. The portions of this Standard shown by dotted underlines are the matters not stated in the corresponding International Stand
14、ard. 1 Scope This Standard specifies the characteristics of hexalobular socket head cap screws with thread sizes from M2 up to an including M20, of product grade A. If, in special cases, specifications other than those listed in this International Stan- dard are required, they should be selected fro
15、m existing International Standards, e.g. JIS B 0205-2, JIS B 0209-2, JIS B 0209-3, JIS B 1009, JIS B 1021, JIS B 1051 and JIS B 1054-1. NOTE : The International Standard corresponding to this Standard is as follows. In addition, symbols which denote the degree of correspondence in the contents betwe
16、en the relevant International Standard and JIS are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO/IEC Guide 21. IS0 14579 : 2001 Hexalobular socket head cap screws (IDT) Information : Product grades A, B and C are specified according to the tolerances by JIS B 1021. A gra
17、de is in more precise and C grade is in less precise. 2 Normative references The following standards contain provisions which, through reference in this Standard, constitute provisions of this Standard. The most recent editions of the standards (including amendments) indicated below shall be applied
18、. JIS B 0143 NOTE : IS0 225 ; 1983 Fasteners-Bolts, screws, studs and nuts-Symbols and designations of dimensions is equivalent to the said standard. JIS B 0205-2 IS0 general purpose metric screw threads-Part 2 : General plan NOTE : IS0 261 ; 1998 IS0 general purpose metric screw threads-General pla
19、n is identical with the said standard. JIS B 8209-2 IS0 general purpose metric screw threads-Tolerances-Part 2 : Limits of sizes for general purpose external and internal screw threads-Medium quality NOTE ; IS0 965-2 ; 1998 IS0 general purpose metric screw threads-Toler- ances-Part 2 : Limits of siz
20、es for general purpose external and inter- nal screw threads-Medium quality is identical with the said standard. JIS B 0209-3 IS0 general purpose metric screw threads-Tolerances-Part 3 : Deviations for constructional screw threads Symbols and designations of dimensions for threaded fasteners PROTECT
21、ED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 09:11:47 MDTNo reproduction or networking permitted without license from IHS -,-,- 2 B 1136 : 2004 (IS0 14579 : 2001) NOTE :
22、IS0 965-3 : 1998 IS0 general purpose metric screw threads-Toler- ances-Part 3 : Deviations for constructional screw threads is identi- cal with the said standard. JIS 3 3 1003 Fasteners-Ends of parts with external IS0 metric thread NOTE : IS0 4753 : 1999 Fasteners-Ends of parts with external IS0 met
23、ric thread is identical with the said standard. JIS B 1009 Bolts, screws and studs-Nominal lengths, and thread lengths for general purpose bolts NOTE : IS0 888 : 1976 Bolts, screws and studs-Nominal lengths, and thread lengths for general purpose bolts is equivalent to the said standard. JIS B 1015
24、NOTE : IS0 10664 : 1999 Hexalobular internal driving feature for bolts and screws is identical with the said standard. Tolerances for fasteners-Part 1 : Bolts, screws, studs and nuts- Product grades A, B and C NOTE : IS0 4759-1 : 2000 Tolerances for fasteners-Part 1 :Bolts, screws, studs and nuts-Pr
25、oduct grades A, B and C i s identical with the said stan- dard. JIS B 1041 Fasteners-Surface discontinuities-Part I : Bolts, screws and studs for general requirements NOTE : IS0 6157-1 ; 1988 Fasteners-Surface discontinuities-Part 1 : Bolts, screws and studs for general requirements is identical wit
26、h the said standard. JIS B 1043 Fasteners-Surface discontinuities-Part 3 : Bolts, screws and studs for special requirements NOTE : IS0 6157-3 : 1988 Fasteners-Surface discontinuities-Part 3 :Bolts, screws and studs for special requirements is identical with the said standard. Hexalobular internal dr
27、iving feature for bolts and screws JIS B 1021 JIS B 1044 Fasteners-Electroplated coatings NOTE : IS0 4042 : 1999 Fasteners-Electroplated coatings is identical with the said standard. JIS B 1046 Fasteners-Non-electrolytically applied since flake coatings* NOTE : IS0 10683 : 2000 Fasteners-Non-electro
28、lytically applied zinc flake coat- ings is identical with the said standard. JIS B 1051 Mechanical properties of fasteners made of carbon steel and alloy steel- Part 1 : Bolts, screws and studs NOTE : IS0 898-1 : 1999 Mechanical properties of fasteners made of carbon steel and alloy steel-Part 1 :Bo
29、lts, screws and studs is identical with the said standard. * Editors notice: to be published. PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 09:11:47 MDTNo reproduct
30、ion or networking permitted without license from IHS -,-,- 3 B 1136 : 2004 (IS0 14579 : 2001) JIS 3 1054-1 Mechanical properties of corrosion-resistant stainless-steel fasten- ers-Part 1 : Bolts, screws und studs NOTE : IS0 3506-1 : 1997 Mechanical properties of corrosion-resistant stain- less-steel
31、 fasteners-Part 1 : Bolts, screws and studs is identical with the said standard. JIS B 1057 Mechanical properties of non-ferrous metal fasteners NOTE : IS0 8839 : 1986 Mechanical properties of fasteners-Bolts, screws, studs and nuts made of non-ferrous metals is equivalent to the said standard. JIS
32、B 1091 Fasteners-Acceptance inspection NOTE : IS0 3269 : 2000 Fasteners-Acceptance inspection is identical with the said standard. JIS B 1176 NOTE : IS0 4762 : 1997 Hexagon socket head caw screws is identical with the Hexagon socket head cap screws . said standard. 3 Dimensions See figure 1 and tabl
33、e 1. Symbols and designations of dimensions, except dimensions A and v, are specified in JIS B 0143. PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 09:11:47 MDTNo re
34、production or networking permitted without license from IHS -,-,- 4 B 1136 : 2004 (IS0 14579 : 2001) X Maximum underhead fillet Ifmax = 1.7rma rmi, see table 1 1 tes (1) d, applies if values of Ismin are specifiec ( 2 ) Point chamfered or for sizes M4 and below “as rolled“, see JIS B 1003. (3) Incom
35、plete thread u c; 2P. (4) Top edge of head may be rounded or chamfered as shown at the discre- tion of the manufacturer. (5) Bottom edge of head may be rounded or chamfered to d, but in every case shall be free from burrs. (6) Reference datum for d,. Figure 1 Hexalobular socket head cap screw PROTEC
36、TED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 09:11:47 MDTNo reproduction or networking permitted without license from IHS -,-,- 5 B 1136 : 2004 (IS0 14579 : 2001) 65 70
37、80 Table 1 Dimensions Unit: mm 64.4 65.6 30.75 37 69.4 70.6 35.75 42 79.4 80.6 45.75 52 The range of commercial lengths is between the thick stepped lines. Lengths above the dashed stepped line are threaded to the head within 3P. Lengths below the dashed stepped line have values ofl, and 1, in accor
38、dance with the following formulae: Zgmm = I , , , - b; 1, min = lgmax - 5P. PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 09:11:47 MDTNo reproduction or networking
39、permitted without license from IHS -,-,- 6 B 1136 : 2004 (IS0 14579 : 2001) 160 159.2 160.8 106 116 99.5 i12 95.5 108 , 180 179.2 180.8 1195 132 115.5 128 135.5 148 , 200 199.1 200.9 Note (I2) Size in parentheses should be avoided if possible. PROTECTED BY COPYRIGHT Copyright Japanese Standards Asso
40、ciation Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 09:11:47 MDTNo reproduction or networking permitted without license from IHS -,-,- 7 B 1136 : 2004 (IS0 14579 : 2001) 4 Specifications and reference standards See table 2. Ta
41、ble 2 Specification and reference standards Material Thread Tolerances Standards properties socket Finish Surface discontinuities Acceptability Steel Stainless steel Non-ferrous metal 5g6g for property class 12.9 (see JIS B 1176 annex 1); for other property classes: 6g . JIS B 0205-2, JIS B 0209-2,
42、JIS B 0209-3 As agreed 2 M3 and I M20: A3-70, A5-70 A JIS B 1021 As processed Requirements for electroplating are covered in JIS B 1044. Requirements for non-electrolytically applied zinc flake coatings are covered in JIS B 1046. JIS B 1015 Plain - - Plain Requirements for electroplating are covered
43、 in JIS B 1044. Limits for surface discontinuities are covered in JIS B 1041 and JIS B 1043 for For acceptance procedure, see JIS B 1091. Notes (I3 For screws unsuitable for tensile testing, the hardness requirements shall be complied with throughout the section of the screws. (14) For stainless ste
44、el screws machined from bar it is permissible to use grade A1-70 for sizes sM12 and A1-50 for sizes Ml2 and to mark them accordingly. 5 Designation Example : A hexalobular socket head cap screw with thread M5, nominal length I = 20 mm and property class 8.8 is designated as follows: Hexalobular sock
45、et head cap screw JIS B 1136-IS0 14579-M520-8.8 Designation of hexalobular socket head cap screw is as follows. PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 09:11:
46、47 MDTNo reproduction or networking permitted without license from IHS -,-,- 8. B 1136 : 2004 (IS0 14579 : 2001) Thread M2 M2.5 M3 (d) Annex A (informative) Masses of carbon steel screws M4 M5 M6 M8 MIO MI2 (M14) M16 (M18) M20 In annex table A.l approximate masses of carbon steel screws with commerc
47、ial lengths are given for information only. Nominal length Approximate mass of carbon steel screws, in kilograms per 1 O00 pieces (p=7.85 kg/dm) PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie
48、Not for Resale, 03/12/2007 09:11:47 MDTNo reproduction or networking permitted without license from IHS -,-,- Errata for JS (English edition) are printed in Smzdardizarion J o u d , published monthly by the Japanese Standards Association, and also provided to subscribers of JIS (English edition) in Monthly Information. E r r a t a will be provided upon request, please contact: Standarzation Promotion Department, Japane