1、BRITISH STANDARD BS EN ISO 4028:2003 Hexagon socket set screws with dog point The European Standard EN ISO 4028:2003 has the status of a British Standard ICS 21.060.10 BS EN ISO 4028:2003 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 23 Dec
2、ember 2003 BSI 23 December 2003 ISBN 0 580 43186 X National foreword This British Standard is the official English language version of EN ISO 4028:2003. It is identical with ISO 4028:2003. It supersedes BS 4168-4:1994 which is withdrawn. The UK participation in its preparation was entrusted by Techn
3、ical Committee FME/9, Nuts, bolts and accessories, to Subcommittee FME/9/8, Hexagon socket screws, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement internation
4、al or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to
5、 include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any
6、enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN ISO title page, the EN ISO forewo
7、rd page, the ISO title page, pages ii and iii, a blank page, pages 1 to 4, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE
8、 EUROPISCHENORM ENISO4028 December2003 ICS21.060.10 Englishversion Hexagonsocketsetscrewswithdogpoint(ISO4028:2003) Vissansttesixpanscreux,tton(ISO4028:2003) GewindestiftemitInnensechskantmitZapfen(ISO 4028:2003) ThisEuropeanStandardwasapprovedbyCENon4November2003. CENmembersareboundtocomplywiththeC
9、EN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexist
10、sinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Fin
11、land,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandUn ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003C
12、EN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.ENISO4028:2003EINESO04:8202(30E) 2 Foreword Thisdocument(ENISO4028:2003)hasbeenpreparedbyTechnicalCommitteeISO/TC2 “Fasteners“incollaborationwithTechnicalCommitteeCEN/TC185“Threadedandnon threadedmechanic
13、alfastenersandaccessories“,thesecretariatofwhichisheldbyDIN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationof anidenticaltextorbyendorsement,atthelatestbyJune2004,andconflictingnational standardsshallbewithdrawnatthelatestbyJune2004. AccordingtotheCEN/CENELECInterna
14、lRegulations,thenationalstandardsorganizationsof thefollowingcountriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,Czech Republic,Denmark,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy, Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,Switzerlandand theUnite
15、dKingdom. NOTEFROMCMC TheforewordissusceptibletobeamendedonreceptionoftheGerman languageversion.Theconfirmedoramendedforeword,andwhenappropriate,thenormative annexZAforthereferencestointernationalpublicationswiththeirrelevantEuropean publicationswillbecirculatedwiththeGermanversion. Endorsementnotic
16、e ThetextofISO4028:2003hasbeenapprovedbyCENasENISO4028:2003withoutany modifications. ENISO4028:2003NITENRATIONAL TSDNAARD OSI 8204 hTdri deoitin 23000-21-1 Reference number ISO 4028:2003(E) Hexagon socket set screws with dog point Vis sans tte six pans creux, ttonINTERNATIONAL STANDARD ISO 4028 Thir
17、d edition 2003-12-01 Refecnern eumreb OSI 4028:002)E(3 OSI 2003 eHaxogcos nercs tes tekwod htiw sop gtni iVs sans tet s ix apsn rcue,x t notENISO4028:2003ii ENISO4028:2003 iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS
18、O 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 represented on that committee. International organizations, gove
19、rnmental 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 are drafted in accordance with the rules given in the ISO/IEC
20、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 International Standard requires approval by at least 75 % of the member
21、 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 4028 was prepared by Technical Committee ISO/TC 2, Fasteners. This third
22、edition cancels and replaces the second edition (ISO 4028:1993), which has been technically revised. ENISO4028:2003blankANRETNIITOTS LANDNADRA OSI 2043002:8)E(1 Hexagon socket set screws with dog point 1S c o p e This International Standard specifies the characteristics of hexagon socket set screws
23、with dog point and threads from M1,6 up to and including M24 and of product grade A. If, in special cases, specifications other than those listed in this International Standard are required, they should be selected from existing International Standards, e.g. ISO 261, ISO 898-5, ISO 965-2, ISO 3506-3
24、 and ISO 4759-1. 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 of the referenced document (including any amendments) applies. ISO 225,
25、Fasteners Bolts, screws, studs and nuts Symbols and designations of dimensions ISO 261, ISO general-purpose metric screw threads General plan ISO 898-5, Mechanical properties of fasteners made of carbon steel and alloy steel Part 5: Set screws and similar threaded fasteners not under tensile stresse
26、s 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 965-3, ISO general purpose metric screw threads Tolerances Part 3: Deviations for constructional screw threads ISO 3269, Fasteners Accep
27、tance inspection ISO 3506-3, Mechanical properties of corrosion-resistant stainless-steel fasteners Part 3: Set screws and similar fasteners not under tensile stress ISO 4042, Fasteners Electroplated coatings ISO 4759-1, Tolerances for fasteners Part 1: Bolts, screws, studs and nuts Product grades A
28、, B and C ISO 6157-1, Fasteners Surface discontinuities Part 1: Bolts, screws and studs for general requirements ISO 8839, Mechanical properties of fasteners Bolts, screws, studs and nuts made of non-ferrous metals ISO 8992, Fasteners General requirements for bolts, screws, studs and nuts ISO 10683,
29、 Fasteners Non-electrolytically applied zinc flake coatings ISO 23429, Gauging of hexagon sockets ENISO4028:20032 3 Dimensions See Figure 1 and Table 1. Symbols and designations of dimensions are specified in ISO 225. Permissible alternative form of socket For broached sockets which are at the maxim
30、um limit of size, the overcut resulting from drilling shall not exceed of the length of any flat of the socket which is . a The angle is a requirement for short-length screws of nominal length, , situated in the shaded areas in Table 1. b The angle applies only to the portion of the point situated b
31、elow the root diameter of the thread. c Incomplete thread . d A slight radius. e A slight rounding or countersink at the mouth of the socket is permissible. Figure 1 1/3 e/2 120 l 45 u2P ENISO4028:2003 3 Table 1 Dimensions Dimensions in millimetres Thread ( ) M1,6 M2 M2,5 M3 M4 M5 M6 M8 M10 M12 M16
32、M20 M24 a 0,35 0,4 0,45 0,5 0,7 0,8 1 1,25 1,5 1,75 2 2,5 3 max. 0,80 1,00 1,50 2,00 2,50 3,5 4,0 5,5 7,00 8,50 12,00 15,00 18,00 min. 0,55 0,75 1,25 1,75 2,25 3,2 3,7 5,2 6,64 8,14 11,57 14,57 17,57 min. Minor thread diameter b, c min. 0,809 1,011 1,454 1,733 2,303 2,873 3,443 4,583 5,723 6,863 9,1
33、49 11,429 13,716 c n o m .0 , 70 , 91 , 31 , 522 , 5345681 01 2 max. 0,724 0,913 1,300 1,58 2,08 2,58 3,08 4,095 5,14 6,14 8,175 10,175 12,212 min. 0,710 0,887 1,275 1,52 2,02 2,52 3,02 4,020 5,02 6,02 8,025 10,025 12,032 min. d 0,7 0,8 1,2 1,2 1,5 2 2 3 4 4,8 6,4 8 10 e 1,5 1,7 2 2 2,5 3 3,5 5 6 8
34、10 12 15 short dog point d max. 0,65 0,75 0,88 1,00 1,25 1,50 1,75 2,25 2,75 3,25 4,3 5,3 6,3 min. 0,40 0,50 0,63 0,75 1,00 1,25 1,50 2,00 2,50 3,00 4,0 5,0 6,0 long dog point e max. 1,05 1,25 1,50 1,75 2,25 2,75 3,25 4,3 5,3 6,3 8,36 10,36 12,43 min. 0,80 1,00 1,25 1,50 2,00 2,50 3,00 4,0 5,0 6,0 8
35、,00 10,00 12,00 Approximate mass, in kilograms per 1 000 pieces ( ) (for information only) nom. min. max. 2 1,8 2,2 0,0242,5 2,3 2,7 0,028 0,046 3 2,8 3,2 0,029 0,053 0,085 4 3,76 4,24 0,037 0,059 0,11 0,12 5 4,76 5,24 0,046 0,074 0,125 0,161 0,239 6 5,76 6,24 0,054 0,089 0,15 0,186 0,319 0,528 8 7,
36、71 8,29 0,07 0,119 0,199 0,266 0,442 0,708 1,07 1,68 10 9,71 10,29 0,148 0,249 0,346 0,602 0,948 1,29 2,31 3,6 12 11,65 12,35 0,299 0,427 0,763 1,19 1,63 2,68 4,78 6,06 16 15,65 16,35 0,586 1,08 1,67 2,31 3,94 6,05 8,94 15 20 19,58 20,42 1,4 2,15 2,99 5,2 8,02 11 20,3 28,3 25 24,58 25,42 2,75 3,84 6
37、,78 10,5 14,6 25,1 38,6 55,4 30 29,58 30,42 4,69 8,35 13 18,2 31,7 45,5 69,9 35 34,5 35,5 9,93 15,5 21,8 38,3 55,8 78,4 40 39,5 40,5 11,5 18 25,4 44,9 66,1 92,9 45 44,5 45,5 20,5 29 51,5 76,4 107 50 49,5 50,5 23 32,6 58,1 86,7 122 55 54,4 55,6 36,2 64,7 97 136 60 59,4 60,6 39,8 71,3 107 151 NOTE Com
38、mercial lengths are those between the bold stepped lines. ais the pitch of the thread. b . c Combined gauging of socket dimensions and , see ISO 23429. d For screws with nominal lengths in the shaded areas. e For screws with nominal lengths below the shaded areas. d P d p d f e s t z l = 7,85 kg/dm
39、3 P e min = 1,14 s min es ENISO4028:20034 4 Requirements and reference International Standards See Table 2. 5 Designation EXAMPLE A hexagon socket set screw with dog point, thread M6, nominal length and of property class 45H, is designated as follows: Hexagon socket set screw ISO 4028 - M6 12 - 45H
40、Table 2 Specifications and reference International Standards Material Steel Stainless steel Non-ferrous metal General requirements International Standard ISO 8992 Thread To l e r a n c e International Standards ISO 261, ISO 965-2, ISO 965-3 Mechanical properties Property class 45H A1-12H, A2-21H, A3
41、-21H, A4-21H, A5-21H As agreed International Standards ISO 898-5 ISO 3506-3 ISO 8839 Tolerances Product grade A International Standard ISO 4759-1 Finish As processed Plain Plain Requirements for electroplating are covered in ISO 4042. Requirements for electroplating are covered in ISO 4042. Requirem
42、ents for non-electrolytically applied zinc flake coatings are covered in ISO 10683. Surface discontinuities Limits for surface discontinuities are covered in ISO 6157-1. Acceptability For acceptance procedure, see ISO 3269. 6g l= 12 mm ENISO4028:2003blankBS EN ISO 4028:2003 BSI 389 Chiswick High Roa
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