1、STDOBSI BS EN IS0 B740-ENGL 1998 Lb24bb9 0710800 52T m BRITISH STANDARD Grooved pins - Full-length parallel grooved, with cham-fer The European Standard EN IS0 8740 : 1997 has the status of a British Standard ICs 21.060.50 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN
2、IS0 8740 : 1998 - - STD-BSI BS EN IS0 8740-ENGL 1998 16246b7 0710801 4bb BS EN IS0 8740 : 1998 Amd No. Date National foreword Textaffected This British Standard is the Ehglbh ianguage version of EN IS0 8740 : 1997. It is identical with Is0 8740 : 1997. It supemedes ES EN 28740 : 1992 which is withdr
3、awn. The UK participation in its preparation was entrusted by Technical Committee FME/s, Bolts, nuis and accessories, to Subcommittee FME/9/6, General purpose fasteners and accessories, which has the responsibility to: - aid enquirers to understand the te* - present to the responsible inkmational/F,
4、uropean committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; - monitor related intedonal and European developmenis and promulgae them in the UK. A list of organizations represented on this Subcommittee can be obtained on request to its secretary
5、. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to intemational publidions with their corresponding European publications. The Britjsh Standards which implement internationai or European publications referred
6、 to in this document may be found in the BSI Standards Catalogue under the section entitled Intwonal Standards Correspondence Index, or by using the Find facility of the BSI Standards Electronic Catalogue. Compliance with a British Standard does not of itself confer immunity from legal obligations.
7、Summary of pages This document comprises a front cover, an inside nont cover, the EN IS0 title page, the EN IS0 foreword page, the IS0 title page, page ii, pages 1 to 3, the annex ZA page, an inside back cover and a back cover. This British Standard, having been prepared under the direction of the h
8、gineekg Sector Board, was published under the authority of the Standards Board and comes into effect on 15 May 1998 0 BSI 1998 ISBN O 680 29400 0 STD.BSI BS EN IS0 8740-ENGL 1998 162Libb 0710802 3T2 = EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IS0 8740 November 1997 ICs 21 .o60 Descriptors
9、: see IS0 document Supersedes EN 28740:1992 English version Grooved pins - Full-length parallel grooved, with chamfer (IS0 DIS 8740:1997) Qoupilles canndei cannelures constantes sur taute la bnguwr dbbouchmtes, chanfrein (IS0 8740:1907) Zyiinderkettmtifte mit Fase (Is0 8740:1997) This European Stand
10、ard was approved by CEN on 18 October 1997. CEN members are bound to comply with the CEWCENELEC Inlemai R8guialiona which stipulate lhe condltlons for giving We European Sandard lha astus of a national standard without any abration. Upto-date Usla and Wiographical references concerning such national
11、 standards may be obtained on application lo lhe Central Secrelaria or to any GEN member. This European Standard exists in aim offidai wrsions (English, French, Qennan). A wRbn in any oiher language made by transletion under the responsibility of a CEN member into its own language and noWied to lhe
12、Centrai Secretarial has the same atatus as lhe otflcial versions. CEN members am the natbnal standards bodies of Auafria, Belgium, Czech Republic. Denmark, Finland, France. Gemany, ireece, iceland, Ireland, Italy, Luxembourg, Nelheriands, Noway, Portugal, SpaM, Sweden, Switzerland and United Kingdom
13、. EUROPEAN COMMITIEE WR STANDARDIZAlON COMITE EUROPEEN DE NORMALISATION EUROPISCHES KOMITEE FOR NORMUNG Central Secratiikt: rue de StuuR, 38 8-1050 ruuda O 1997 CEN All rights of explolation in any form and by any means reserved worldwide tor CEN national Members. Ref. No. EN is0 8740:1SB7 E EN IS0
14、87401997 Foreword The text of the International Standard IS0 8740: 1997 has been prepared by Technical Committee ISO/TC 2 “Fasteners“ in collaboration with Technical Committee CEN/TC 185 “Threaded and non-threaded mechanical fasteners and accessories“, the secretariat of which is held by DIN. This E
15、uropean Standard supersedes EN 28740: 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 1998, and conflicting national standards shall be withdrawn at the latest by May 1998. According to
16、the CENKENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain,
17、Sweden, Switzerland and the United Kingdom. Endorsement notice The text of the International Standard IS0 8740:1997 was approved by CEN as a European Standard without any modification. NOTE: Normative references to International Standards are listed in annex ZA (normative). STDmBSI BS EN IS0 8740-EN
18、GL 3998 Lb24bb9 0730804 175 EN IS0 8740:1997 I NT E R NAT I ON AL STANDARD IS0 8740 Second edition 1997-1 1-01 Grooved pins - Full-length parallel grooved, with chamfer Goupilles canneies cannelures constantes sur toute la longueur dbouchantes, 21 chanfrein Jt rn Jt Reference number IS0 8740:1997(E)
19、 STD.BS1 BS EN IS0 8740-ENGL 1998 m 1624669 OL0805 OOL m EN IS0 87401997 Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 tec
20、hnical 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. Intemational organizations, governmental and non- governmental, in liaison with ISO, also take part in the work. IS0 collaborates closel
21、y with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft Intemational 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 %
22、of the member bodies casting a vote. International Standard IS0 8740 was prepared by Technical Committee ISOKC 2, fasteners. This second edition cancels and replaces the first edition (IS0 8740:1986), which has been technically revised. Deecrlptom: fasteners. steel products, pins (mechanics), groove
23、d pins, specifications, characteristics, dimensions, designation. i - STD.BSI ES EN IS0 8740-ENGL 1998 Lb24bb9 0730806 T48 H EN IS0 8740:1997 Grooved pins - Full-length parallel grooved, with chamfer 1 scope This International Standard specifies the characteristics of full-length parallel grooved pi
24、ns made of steel or austenitic stainless steel with chamfer which have three equally spaced grooves impressed longitudinally on their exterior surface and a pilot to facilitate insertion, with nominal diameter, d, from 1,5 mm to 25 mm inclu- sive. The displaced material to each side of the grooves f
25、orming an expanded diameter d2 which is larger than the nominal diameter d, will cause a non-positive locking fit when these grooved pins are forced into a drilled hole equal to the nominal diameter d, (see clause 4). 2 Normative references The following standards contain provisions which, through r
26、eference in this text, constitute provisions of this International Standard. At the time of publication, 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
27、the most recent editions of the standards indicated below. Members of IEC and IS0 maintain registers of currently valid International Standards. IS0 32693988, Fasteners -Acceptance inspection. IS0 3506-1: 1997, Corrosion-resistant stainless steel fasteners - Part I: Bolts, screws and studs. IS0 4042
28、:-“, fasteners - Electroplated coatings. IS0 8749:1986, Pins and grooved pins - Shear test. IS0 9717:1990, Phosphate conversion coatings for metals - Method of specifying requirements. 3 Dimensions See figure 1 and table 1. Cl 1) Chamfer permissible 2) a = 15“ to 30“ 3) The grooving angle 70“ applie
29、s only to grooved pins made from steel as shown in clause 5. The grooving angle may be modified depending on resilience of material. Figure 1 1) To be published. (Revision of IS0 4042:19891 1 STD-BSI BS EN IS0 8740-ENGL 1998 = 1624bb9 0710807 984 D EN IS0 8740:1997 Table 1 - Dimensions Dimensions in
30、 millimetres Expanded diameter, 4n*“ +0,05 i) Applies only to grooved pins made from steel as shown in clause 5. 2) The range of commercial lengths is behiveen the stepped lines. - - 10.35 T 283 444 o.1 25.5 - 3) The expanded diameter, d, applies only to pins made from steel as shown in clause 5. Fo
31、r other materials, for example stainless steel, a reduction amount shall be subtracted from the given values and should be agreed between customer and supplier. 4) For testing 48 GOMO GO ring gauge should be used. 2 STDDBSI ES EN IS0 8740-ENGL 1998 Lb24bb 07L0808 810 m Material” Grooves Wace Fu* EN
32、IS0 8740:1997 Steel (St) Austenitic stainless steel Hardness 125 HV30 to 245 HV30 Al in accordance with IS0 3506-1, hardness 210 HV30 to 280 HV30 Form of groove at the discretion of the supplier Plain, .e. pins to be supplied in natural finish treated with a protective lubricant, unless otherwise sp
33、ecified by agreement between customer and supplier. Preferred coatings are black oxide, phosphate coating or zinc plating with chromate conver- sion coating (see IS0 9717 and IS0 4042). r Plain, .e. pins to be supplied in natural finish. 4 Application The diameter of the hole into which the groove p
34、in is to be inserted shall be equal to the nominal diameter d, of the mating pin and to tolerance class H11. Workmanship 5 Requirements and reference International Standards See table 2. Pins shall be free of irregularities or detrimental defects. Table 2 - Requirements and reference International S
35、tandards Shear ted Acceptability The test shall be in accordance with IS0 8749. The acceptance procedure is covered in IS0 3269. I Other coatings as agreed between customer and supplier. I All tolerances shall apply prior to the appli- I cation of a plating or coating. 6 Designation EXAMPLE 1 A full
36、-length parallel grooved steel pin with chamfer with nominal diameter d, = 6 mm and nominal length 1 = 50 mm is designated as follows: Grooved pin IS0 8740 - 6 x 50 - St EXAMPLE 2 A full-length parallel grooved austenitic stainless steel pin of grade AI with chamfer, with nominal diameter d, = 6 mm
37、and nominal length 1 = 50 mm is designated as follows: Grooved pin IS0 8740 - 6 x 50 - Al 3 - , STD-BSI BS EN IS0 8740-ENGL 3998 LbZ4bbS 0730809 757 = EN IS0 8740:1997 Annex ZA (normative) Normative references to international publications with their relevant European publications This European Stan
38、dard 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 these publications apply to thi
39、s 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 ml IS0 8749 1986 Pins and grooved pins - Shear test EN 28749 1992 STD.BSI BS EN IS0 8740-ENGL 1998 Lb24bb 07LO8LO 4
40、79 H BS EN IS0 8740 : 1998 BSI 389ChiswickHighRoad London w4 4AL BSI - British Standards Institution BSI is the independent national body responsible for preparing British Stan-. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Contr
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