1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 15072:2012Hexagon bolts with flangewith metric fine pitch thread Small series Product grade ABS ISO 15072:2012 BRITISH STANDARDNational forewordThis British Standard is th
2、e UK implementation of ISO 15072:2012. Itsupersedes BS ISO 15072:1999 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee FME/9/1, Fasteners - Mechanical properties.A list of organizations represented on this committee can beobtained on request to its secre
3、tary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012. Published by BSI StandardsLimited 2012ISBN 978 0 580 77083 8ICS 21.060.10Compliance with a British Standard cannot co
4、nfer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 July 2012.Amendments issued since publicationDate Text affectedBS ISO 15072:2012Reference numberISO 15072:2012(E)ISO 2012INTERNATIONAL STANDARD ISO15072Seco
5、nd edition2012-07-01Hexagon bolts with flange with metric fine pitch thread Small series Product grade A Vis tte hexagonale embase cylindro-tronconique, filetage mtrique pas fin Srie troite Grade A BS ISO 15072:2012ISO 15072:2012(E) COPYRIGHT PROTECTED DOCUMENT ISO 2012 All rights reserved. Unless o
6、therwise 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 either ISO at the address below or ISOs member body in the country of the requester. ISO copyr
7、ight office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2012 All rights reservedBS ISO 15072:2012ISO 15072:2012(E) ISO 2012 All rights reserved iiiContents Page Foreword iv 1 Scope 1 2 Normativ
8、e references 1 3 Dimensions 2 4 Requirements and reference International Standards 6 5 Designation 6 Annex A (normative) Gauging of hexagon flange heads 7 Bibliography 9 BS ISO 15072:2012ISO 15072:2012(E) iv ISO 2012 All rights reservedForeword ISO (the International Organization for Standardization
9、) 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 repr
10、esented 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 Standards ar
11、e drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an Internation
12、al Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 15072 was pre
13、pared by Technical Committee ISO/TC 2, Fasteners, Subcommittee SC 11, Fasteners with metric external thread. This second edition cancels and replaces the first (ISO 15072:1999), of which it constitutes a minor revision. It also incorporates the Technical Corrigendum ISO 15072:1999/Cor.1:2006. BS ISO
14、 15072:2012INTERNATIONAL STANDARD ISO 15072:2012(E) ISO 2012 All rights reserved 1Hexagon bolts with flange with metric fine pitch thread Small series Product grade A 1 Scope This International Standard specifies the characteristics of hexagon bolts with flange with metric fine pitch thread, small s
15、eries, with product grade A, and with nominal thread diameters from 8 mm up to and including 16 mm and property classes 8.8, 9.8, 10.9, 12.9/12.9 and A2-70. If, in special cases, specifications other than those listed in this International Standard are required, they can be selected from existing In
16、ternational Standards, for example ISO 261, ISO 888, ISO 898-1, ISO 965-2 and ISO 3506-1. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition
17、 of the referenced document (including any amendments) applies. ISO 225, Fasteners Bolts, screws, studs and nuts Symbols and descriptions of dimensions ISO 261, ISO general purpose metric screw threads General plan ISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel Pa
18、rt 1: Bolts, screws and studs with specified property classes Coarse thread and fine pitch thread ISO 965-2, ISO general purpose metric screw threads Tolerances Part 2: Limits of sizes for general purpose external and internal screw threads Medium quality ISO 3269, Fasteners Acceptance inspection IS
19、O 3506-1, Mechanical properties of corrosion-resistant stainless steel fasteners Part 1: Bolts, screws and studs ISO 4042, Fasteners Electroplated coatings ISO 4753, Fasteners Ends of parts with external ISO metric thread ISO 4759-1, Tolerances for fasteners Part 1: Bolts, screws, studs and nuts Pro
20、duct grades A, B and C ISO 6157-3, Fasteners Surface discontinuities Part 3: Bolts, screws and studs for special requirements ISO 8992, Fasteners General requirements for bolts, screws, studs and nuts ISO 10683, Fasteners Non-electrolytically applied zinc flake coatings ISO 16048, Passivation of cor
21、rosion-resistant stainless-steel fasteners BS ISO 15072:2012ISO 15072:2012(E) 2 ISO 2012 All rights reserved3 Dimensions See Figures 1 to 4 and Table 1. Symbols and descriptions of dimensions are specified in ISO 225. aThe top of the head shall be either full form or indented at the manufacturers di
22、scretion and shall be either chamfered or rounded. The minimum diameter of the chamfer circle or start of rounding shall be equal to the maximum width across flats minus 15 %. If the top of the head is indented, the periphery may be rounded. bEdge contour is at the discretion of the manufacturer (op
23、tional). cChamfered end, as specified in ISO 4753. d = 15 to 30. ekwis the wrenching height; see the note to Table 1. fIncomplete thread u 2 P. Figure 1 Hexagon bolt with flange Full shank Standard type BS ISO 15072:2012ISO 15072:2012(E) ISO 2012 All rights reserved 3Tolerances in millimetres NOTE F
24、or other dimensions, see Figure 1. aRounded, chamfered or conical. bd2is approximately equal to the pitch diameter (rolling diameter). Figure 2 Hexagon bolt with flange Reduced shank Type R (upon request) Type F without undercut Standard type Type U with undercut (upon request or optional) ac is mea
25、sured at dw,min. bMaximum and minimum underhead fillet. cJunction of fillet with bearing surface shall be a smooth blend. Figure 3 Hexagon bolt with flange Underhead configuration (bearing area) BS ISO 15072:2012ISO 15072:2012(E) 4 ISO 2012 All rights reservedFigure 4 Hexagon bolt with flange thread
26、ed to the head Table 1 Dimensions Dimensions in millimetresThread (d Pa) M8 1 M10 1 M10 1,25 M12 1,25 M12 1,5 (M14 1,5)bM16 1,5 a max. 3,0 3,0 4,5 4,5 4,5 min. 1,0 1,0 1,5 1,5 1,5b ref. c22 26 30 34 38 d28 32 36 40 44e 57 c min. 1,2 1,5 1,8 2,1 2,4daTypes UFmax. 9,2 11,2 13,7 15,7 17,7 10,0 12,5 15,
27、2 17,7 20,5 dcmax. 17,0 20,8 24,7 28,6 32,8 dsmax. 8,00 10,00 12,00 14,00 16,00 min. 7,78 9,78 11,73 13,73 15,73 dvmax. 8,8 10,8 12,8 14,8 17,2 dwmin. 14,9 18,7 22,5 26,4 30,6 e min. 10,95 14,26 16,50 19,86 23,15 k max. 8,5 9,7 12,1 12,9 15,2 kwmin. 3,8 4,3 5,4 5,6 6,8lfmax. 2,1 2,1 2,1 2,1 3,2 r1mi
28、n. 0,4 0,4 0,6 0,6 0,6r2fmax. 0,5 0,6 0,7 0,9 1,0 r3max. 0,36 0,45 0,54 0,63 0,72 min. 0,16 0,20 0,24 0,28 0,32 r4ref. 5,7 5,7 5,7 5,7 8,8s max. 10,00 13,00 15,00 18,00 21,00 min. 9,78 12,73 14,73 17,73 20,67 v max. 0,25 0,30 0,35 0,45 0,50 min. 0,10 0,15 0,15 0,20 0,25 BS ISO 15072:2012ISO 15072:20
29、12(E) ISO 2012 All rights reserved 5Table 1 (continued) Dimensions in millimetresThread (d Pa) M8 1 M10 1 M10 1,25 M12 1,25 M12 1,5 (M14 1,5)bM16 1,5 lg,hlsand lginom. min. max. lsmin. lgmax. lsmin. lgmax. lsmin. lgmax. lsmin. lgmax. lsmin. lgmax. 16 15,65 16,35 20 19,58 20,42 25 24,58 25,42 30 29,5
30、8 30,42 35 34,5 35,5 6,75 13 40 39,5 40,5 11,75 18 6,5 14 45 44,5 45,5 16,75 23 11,5 19 6,25 15 50 49,5 50,5 21,75 28 16,5 24 11,25 20 6 16 55 54,4 55,6 26,75 33 21,5 29 16,25 25 11 21 7 17 60 59,4 60,6 31,75 38 26,5 34 21,25 30 16 26 12 22 65 64,4 65,6 36,75 43 31,5 39 26,25 35 21 31 17 27 70 69,4
31、70,6 41,75 48 36,5 44 31,25 40 26 36 22 32 80 79,4 80,6 51,75 58 46,5 54 41,25 50 36 46 32 42 90 89,3 90,7 56,5 64 51,25 60 46 56 42 52 100 99,3 100,7 66,5 74 61,25 70 56 66 52 62 110 109,3 110,7 71,25 80 66 76 62 72 120 119,3 120,7 81,25 90 76 86 72 82 130 129,2 130,8 80 90 76 86 140 139,2 140,8 90
32、 100 86 96 150 149,2 150,8 96 106 160 159,2 160,8 106 116 NOTE If the product passes the gauging in Annex A, the requirements for dimensions c, e and kware satisfied. aP is the pitch of the thread. bThe size in parentheses should be avoided, if possible. cFor lnom 125 mm. dFor 125 mm 200 mm. fRadius
33、 r2is applicable both at the corners and at the flats of the hexagon. gScrews with non-specified dimensions, lsand lg, given as “, shown above the solid, bold, stepped line are threaded to the head. hReduced shank type (type R) shown only below the dashed stepped line. ilg,max= lnom b ls,min= lg,max
34、 5 P (P is the pitch of the coarse thread, specified in ISO 261). BS ISO 15072:2012ISO 15072:2012(E) 6 ISO 2012 All rights reserved4 Requirements and reference International Standards See Table 2. Table 2 Requirements and reference International Standards Material Steel Stainless steel General requi
35、rements International Standard ISO 8992 Thread Tolerance class 6g International Standards ISO 261, ISO 965-2 Mechanical property Property class 8.8, 9.8, 10.9, 12.9/12.9 A2-70 International Standards ISO 898-1 ISO 3506-1 Tolerance Product grade A International Standard ISO 4759-1 Finish Coating As p
36、rocessed As processed Requirements for electroplating are specified in ISO 4042. A method for passivation is specified in ISO 16048. Requirements for non-electrolytically applied zinc flake coatings are specified in ISO 10683. Additional requirements or other finishes or coatings shall be agreed bet
37、ween the supplier and the purchaser. Surface integrity Limits for surface discontinuities are specified in ISO 6157-3. Acceptability Acceptance inspection is specified in ISO 3269. 5 Designation EXAMPLE 1 A hexagon bolt with flange, small series, product grade A, with metric fine pitch thread M12 1,
38、25, nominal length l = 80 mm, type F or U at the manufacturers discretion and of property class 8.8, is designated as follows: Hexagon bolt with flange ISO 15072 - M12 1,25 80 - 8.8 EXAMPLE 2 A hexagon bolt with flange, small series, product grade A, with metric fine pitch thread M12 1,25, nominal l
39、ength l = 80 mm, type F and of property class 8.8, is designated as follows: Hexagon bolt with flange ISO 15072 - M12 1,25 80 - F - 8.8 EXAMPLE 3 If, in special cases, a hexagon bolt with flange with reduced shank is required, the letter R shall be included in the designation as follows: Hexagon bol
40、t with flange ISO 15072 - M12 1,25 80 - R - 8.8 BS ISO 15072:2012ISO 15072:2012(E) ISO 2012 All rights reserved 7Annex A (normative) Gauging of hexagon flange heads A.1 Recommended method for gauging of hexagon See Figure A.1 and Table A.1. The head shall be gauged using two ring gauges, A and B, to
41、 demonstrate the coincidental acceptability of hexagon height, wrenching height, corner fill and width across corners. Gauge A shall be placed over the hexagon and shall sit on the flange. Gauge B shall be placed on the top of the head normal to the bolt axis. The two gauges shall not be in contact.
42、 A.2 Recommended method for gauging of flange thickness See Figure A.1 and Table A.1. Gauge C shall be a flat feeler or ring gauge. It is used to prove that the flange thickness at the junction of the gauge with the hexagon portion is equal to or greater than specified values. The acceptance criteri
43、on is that gauge C fits under gauge A without contact whenever the bolt head is seated on a flat plate. Key 1 gauge A 2 gauge B 3 gauge C Wa,min etheoreticalWb,max emin 0,01 mm Ta,max kw,minFigure A.1 BS ISO 15072:2012ISO 15072:2012(E) 8 ISO 2012 All rights reservedTable A.1 Dimensions in millimetre
44、sThread Gauge A Gauge B Gauge C WaTaWbTbWcTcmax. min. max. min. max. min. min. max. max. min. M8 11,56 11,55 3,80 3,79 10,94 10,93 4 20,0 1,31 1,30 M10 15,02 15,01 4,30 4,29 14,25 14,24 4 24,0 1,81 1,80 M12 17,33 17,32 5,40 5,39 16,49 16,48 5 29,0 2,20 2,19 M14 20,79 20,78 5,60 5,59 19,85 19,84 5 32
45、,5 2,55 2,54 M16 24,26 24,25 6,80 6,79 23,14 23,13 6 37,0 2,96 2,95 BS ISO 15072:2012ISO 15072:2012(E) ISO 2012 All rights reserved 9Bibliography 1 ISO 888, Fasteners Bolts, screws and studs Nominal lengths and thread lengths 2 ISO 4014, Hexagon head bolts Product grades A and B 3 ISO 4015, Hexagon
46、head bolts Product grade B Reduced shank (shank diameter approximately equal to pitch diameter) 4 ISO 4016, Hexagon head bolts Product grade C 5 ISO 4017, Hexagon head screws Product grades A and B 6 ISO 4018, Hexagon head screws Product grade C 7 ISO 4032, Hexagon nuts, style 1 Product grades A and
47、 B 8 ISO 4033, Hexagon nuts, style 2 Product grades A and B 9 ISO 4034, Hexagon nuts Product grade C 10 ISO 4035, Hexagon thin nuts (chamfered) Product grades A and B 11 ISO 4036, Hexagon thin nuts (unchamfered) Product grade B 12 ISO 4161, Hexagon nuts with flange, style 2 Coarse thread 13 ISO 4162
48、, Hexagon bolts with flange Small series Product grade A with driving feature of product grade B 14 ISO 7040, Prevailing torque type hexagon nuts (with non-metallic insert), style 1 Property classes 5, 8 and 10 15 ISO 7041, Prevailing torque type hexagon nuts (with non-metallic insert), style 2 Property classes 9 and 12 16 ISO 7042, Prevailing torque type all-metal hexagon nuts, style 2 Property classes 5, 8, 10 and 12 17 ISO 7043, Prevailing torque type hexagon nuts with flange (with non-metal
