1、BRITISH STANDARD BS EN ISO 8733:1998 Parallel pins with internal thread, of unhardened steel or austenitic stainless steel The European Standard EN ISO 8733:1997 has the status of a British Standard ICS 21.060.50BSEN ISO 8733:1998 This British Standard, having been prepared under the directionof the
2、 Engineering SectorBoard, was published underthe authority of the Standards Board and comes into effect on 15 May 1998 BSI 03-1999 ISBN 0 580 29084 0 National foreword This British Standard is the English language version of EN ISO8733:1997. It is identical with ISO8733:1997. It supersedes BS EN2873
3、3:1992 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee FME/9, Bolts, nuts and accessories, to Subcommittee FME/9/6, General purpose fasteners and accessories, which has the responsibility to: aid enquirers to understand the text; present to the respon
4、sible international/European committee any 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. A list of organizations represented on this Subcommittee can be obtained on
5、request to its secretary. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which implement international or Eur
6、opean publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the nec
7、essary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theE
8、N ISO title page, page 2, the ISO title page, page ii, pages 1 to 4, aninsideback cover andaback cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publi
9、cation Amd. No. Date CommentsBSENISO8733:1998 BSI 03-1999 i Contents Page National foreword Inside front cover Foreword 2 Foreword ii Text of EN ISO 8733 1ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 8733 November 1997 ICS 21.060 Supersedes EN 28733:1992 Descriptors: See ISO docu
10、ment English version Parallel pins with internal thread, of unhardened steel or austenitic stainless steel (ISO 8733:1997) Goupilles cylindriques trou taraud en acier non tremp et en acier inoxydable austnitique (ISO 8733:1997) Zylinderstifte mit innengewinde aus ungehrtetem Stahl und austenitischem
11、 nichtrostendem Stahl (ISO 8733:1997) This European Standard was approved by CEN on 18 October 1997. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up
12、-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation und
13、er the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as he official versions. CEN members are the national standards bodies of Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxem
14、bourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1997 CEN All rights of exploitation in any form and b
15、y any means reserved worldwide for CEN national Members. Ref. No. EN ISO 8733:1997 EENISO 8733:1997 BSI 03-1999 2 Foreword The text of the International Standard ISO8733:1997 has been prepared by Technical Committee ISO/TC 2 “Fasteners” in collaboration with Technical Committee CEN/TC 185 “Threaded
16、and non-threaded mechanical fasteners and accessories”, the secretariat of which is held by DIN. This European Standard supersedes EN28733:1992. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May
17、 1998, and conflicting national standards shall be withdrawn at the latest by May 1998. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, CzechRepublic, Denmark, Finland,
18、 France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of the International Standard ISO8733:1997 has been approved by CEN as a European Standard without any modifications. NOTENorma
19、tive references to International Standards are listed inAnnex ZA (normative). Contents Page Foreword 2 1 Scope 1 2 Normative references 1 3 Dimensions 1 4 Requirements and reference International Standards 3 5 Designation 3 Annex ZA (normative) Normative referencestointernational publicationswiththe
20、irrelevant Europeanpublications Inside back cover Figure 1 1 Table 1 Dimensions 2 Table 2 Requirements and reference International Standards 3EN ISO8733:1997 ii BSI 03-1999 Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO m
21、ember 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, governm
22、ental 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. Draft International Standards adopted by the technical committees are circulated to the m
23、ember bodies for voting. Publication as an International Standard requires approval by at least 75% of the member bodies casting a vote. International Standard ISO8733 was prepared by Technical Committee ISO/TC 2, Fasteners. This second edition cancels and replaces the first edition (ISO 8733:1986),
24、 which has been technically revised. Descriptors: Fasteners, steel products, pins (mechanics), straight pins, threaded parts, specifications, characteristics, dimensions, designation.ENISO8733:1997 BSI 03-1999 1 1 Scope This International Standard specifies the characteristics of parallel pins with
25、internal thread of unhardened steel and austenitic stainless steel with nominal diameters, d 1 , from 6mm to 50mm inclusive. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of p
26、ublication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain re
27、gisters of currently valid International Standards. ISO 965-2: 1) , ISO general purpose metric screw threads Tolerances Part 2: Limits of sizes for general purpose bolt and nut thread Medium quality. ISO 3269:1988, Fasteners Acceptance inspection. ISO 3506-1:1997, Corrosion-resistant stainless steel
28、 fasteners Part 1: Bolts, screws and studs. ISO 4042: 2) , Fasteners Electroplated coatings. ISO 9717:1990, Phosphate conversion coatings for metals Method of specifying requirements. 3 Dimensions SeeFigure 1 andTable 1. 1) To be published. (Revision of ISO965-2:1980) 2) To be published. (Revision o
29、f ISO4042:1989) Figure 1 ENISO 8733:1997 2 BSI 03-1999 Table 1 Dimensions Dimensions in millimetres d 1 m6 a 6 8 10 12 16 20 25 30 40 50 c 1 0,8 1 1,2 1,6 2 2,5 3 4 5 6,3 c 2 1,2 1,6 2 2,5 3 3,5 4 5 6,3 8 d 2 M4 M5 M6 M6 M8 M10 M16 M20 M20 M24 p b 0,7 0,8 1 1 1,25 1,5 2 2,5 2,5 3 d 3 4,3 5,3 6,4 6,4
30、 8,4 10,5 17 21 21 25 t 1 6 8 10 12 16 18 24 30 30 36 t 2 min. 10 12 16 20 25 28 35 40 40 50 t 3 1 1,2 1,2 1,2 1,5 1,5 2 2 2,5 2,5 l c nom. min. max. 16 15,5 16,5 18 17,5 18,5 20 19,5 20,5 22 21,5 22,5 24 23,5 24,5 26 25,5 26,5 28 27,5 28,5 30 29,5 30,5 Range 32 31,5 32,5 35 34,5 35,5 40 39,5 40,5 o
31、f 45 44,5 45,5 50 49,5 50,5 55 54,25 55,75 60 59,25 60,75 65 64,25 65,75 70 69,25 70,75 commercial 75 74,25 75,75 80 79,25 80,75 85 84,25 85,75 90 89,25 90,75 95 94,25 95,75 100 99,25 100,75 lengths 120 119,25 120,75 140 139,25 140,75 160 159,25 160,75 180 179,25 180,75 200 199,25 200,75 a Other tol
32、erances as agreed between customer and supplier. b P is the pitch of the thread. c For nominal lengths above 200mm, steps of 20mm.ENISO8733:1997 BSI 03-1999 3 4 Requirements and reference International Standards SeeTable 2. Table 2 Requirements and reference International Standards 5 Designation EXA
33、MPLE 1 An unhardened steel parallel pin, with internal thread, with nominal diameter d 1= 6 mm and a nominal length l = 30mm is designated as follows: Parallel pin ISO 8733 6 30 St EXAMPLE 2 An unhardened austenitic stainless steel pin of grade A1, with internal thread, with nominal diameter d 1= 6m
34、m and nominal length l = 30mm is designated as follows: Parallel pin ISO 8733 6 30 A1 Screw thread Metric screw thread with tolerance 6H in accordance with ISO 965-2 Material a Steel (St) Austenitic stainless steel Hardness 125 HV30 to 245 HV30 A1 in accordance with ISO 3506-1, hardness 210 HV30 to
35、280 HV30 Plain, i.e.pins to be supplied in natural finish treated with a protective lubricant, unless otherwise specified by agreement between customer and supplier. Surface finish Preferred coatings are black oxide, phosphate coating or zinc plating with chromate conversion coating (seeISO9717 and
36、ISO 4042). Other coatings as agreed between customer and supplier. All tolerances shall apply prior to the application of a plating or coating. Plain, i.e.pins to be supplied in natural finish. Surface roughness R a 0,84m Workmanship Pins shall be free of irregularities or detrimental defects. No bu
37、rrs shall appear on any part of the pin. Acceptability The acceptance procedure is covered in ISO3269. a Other materials as agreed between customer and supplier.4 blankENISO8733:1997 BSI 03-1999 Annex ZA (normative) Normative references to international publications with their relevant European publ
38、ications This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of thes
39、e publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. Publication Year Title EN Year ISO 3506-1 1997 Mechanical properties of corrosion-resistant stainless steel fastener
40、s Part 1: Bolts, screws and studs EN ISO 3506-1 1997BS EN ISO 8733:1998 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Europe and at the international lev
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