1、BS ISO 1891:2009ICS 01.040.21; 21.060.01NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDFasteners -TerminologyThis British Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 31 March2009 BSI 2009ISBN 978 0 580 63502 1Amendme
2、nts/corrigenda issued since publicationDate CommentsBS ISO 1891:2009National forewordThis British Standard is the UK implementation of . It supersedes BS6040:1981 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee FME/9/2, Reference standards for fasteners
3、.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom le
4、gal obligations.BS ISO 1891:2009Reference numberNumro de rfrence ISO 1891:2009(E/F/R)ISO 2009INTERNATIONAL STANDARD NORME INTERNATIONALE ISO1891Second editionDeuxime ditionoe 2009-02-15Fasteners Terminology lments de fixation Terminologie BS ISO 1891:2009ISO 1891:2009(E/F/R) ISO 2009 The reproductio
5、n of the terms and definitions contained in this International Standard is permitted in teaching manuals, instruction booklets, technical publications and journals for strictly educational or implementation purposes. The conditions for such reproduction are: that no modifications are made to the ter
6、ms and definitions; that such reproduction is not permitted for dictionaries or similar publications offered for sale; and that this International Standard is referenced as the source document. With the sole exceptions noted above, no other part of this publication may be reproduced or utilized in a
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20、o ae, eeo e. BS ISO 1891:2009ISO 1891:2009(E/F/R) iv ISO 2009 All rights reserved/Tous droits rservs/ Contents Page Foreword. vii 1 Scope 1 2 Screw threads 3 3 Features of externally threaded fasteners 8 3.1 Head shapes 8 3.2 Forms of shank . 14 3.3 Ends of externally threaded fasteners 16 3.4 Drivi
21、ng features. 22 4 Externally threaded fasteners 28 4.1 Bolts and screws with ISO metric thread . 29 4.1.1 Bolts and screws with external driving feature . 29 4.1.2 Bolts and screws with internal driving feature 34 4.1.3 Slotted head screws . 38 4.1.4 Cross recessed head screws. 44 4.1.5 Screws with
22、captive components (screw and washer assemblies) 46 4.1.6 Round head bolts 47 4.1.7 Countersunk head bolts . 49 4.1.8 Miscellaneous bolts and screws . 51 4.2 Tapping screws . 57 4.3 Tapping screws with captive components (tapping screw and washer assemblies) 62 4.4 Drilling screws. 64 4.5 Thread rol
23、ling (thread forming) screws 67 4.6 Thread cutting screws 70 4.7 Wood screws . 74 4.8 Studs 77 4.9 Set screws and headless screws 80 4.10 Screw plugs . 85 5 Nuts 88 5.1 Nuts with external driving feature . 88 5.2 Prevailing torque-type nuts 94 5.3 Weld nuts . 96 5.4 Round nuts 98 5.5 Miscellaneous n
24、uts . 100 6 Washers . 102 6.1 Plain washers 102 6.2 Taper washers . 104 6.3 Spring washers . 105 6.4 Lock washers. 107 6.5 Tab washers. 109 7 Pins. 111 7.1 Parallel pins . 111 7.2 Clevis pins . 112 7.3 Taper pins 113 7.4 Grooved pins . 114 7.5 Spring-type straight pins 117 7.6 Split pins 118 8 Blind
25、 rivets. 119 BS ISO 1891:2009ISO 1891:2009(E/F/R) ISO 2009 All rights reserved/Tous droits rservs/ vSommaire Page Avant-propos. viii 1 Domaine dapplication.1 2 Filetages .3 3 Caractres des lments de fixation avec filetage extrieur 8 3.1 Formes de tte .8 3.2 Formes de tige .14 3.3 Extrmits des lments
26、 de fixation avec filetage extrieur 16 3.4 Entranement22 4 lments de fixation avec filetage extrieur.28 4.1 Vis filetage mtrique ISO .29 4.1.1 Vis entranement extrieur.29 4.1.2 Vis entranement intrieur .34 4.1.3 Vis tte fendue 38 4.1.4 Vis empreinte cruciforme.44 4.1.5 Vis lments incorpors 46 4.1.6
27、Corps de boulon tte ronde ou bombe 47 4.1.7 Corps de boulon tte fraise .49 4.1.8 Vis diverses 51 4.2 Vis tle .57 4.3 Vis tle lments incorpors62 4.4 Vis autoperceuses .64 4.5 Vis autoformeuses (par dformation de matire).67 4.6 Vis autotaraudeuses par enlvement de matire.70 4.7 Vis bois 74 4.8 Goujons
28、 77 4.9 Vis sans tte entirement filetes et partiellement filetes.80 4.10 Bouchons filets85 5 crous.88 5.1 crous entranement externe 88 5.2 crous autofreins 94 5.3 crous souder.96 5.4 crous ronds98 5.5 crous divers .100 6 Rondelles102 6.1 Rondelles plates 102 6.2 Cles biaises 104 6.3 Rondelles lastiq
29、ues .105 6.4 Rondelles lastiques dents ou dents chevauchantes .107 6.5 Freins dcrou 109 7 Goupilles.111 7.1 Goupilles cylindriques 111 7.2 Axes darticulation.112 7.3 Goupilles de position conique .113 7.4 Goupilles canneles 114 7.5 Goupilles lastiques117 7.6 Goupilles fendues118 8 Rivets aveugles119
30、 BS ISO 1891:2009ISO 1891:2009(E/F/R) vi ISO 2009 All rights reserved/Tous droits rservs/ . ix 1 1 2 3 3 . 8 3.1 8 3.2 . 14 3.3 16 3.4 22 4 28 4.1 29 4.1.1 29 4.1.2 34 4.1.3 38 4.1.4 . 44 4.1.5 46 4.1.6 47 4.1.7 49 4.1.8 51 4.2 57 4.3 . 62 4.4 64 4.5 67 4.6 70 4.7 . 74 4.8 77 4.9 . 80 4.10 85 5 88 5
31、.1 88 5.2 94 5.3 . 96 5.4 98 5.5 . 100 6 . 102 6.1 . 102 6.2 . 104 6.3 105 6.4 107 6.5 109 7 . 111 7.1 111 7.2 ( ). 112 7.3 . 113 7.4 114 7.5 . 117 7.6 . 118 8 . 119 BS ISO 1891:2009ISO 1891:2009(E/F/R) ISO 2009 All rights reserved/Tous droits rservs/ viiForeword ISO (the International Organization
32、for Standardization) 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 t
33、he right to be represented 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. Interna
34、tional Standards are 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. Publicatio
35、n as an International 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
36、. ISO 1891 was prepared by Technical Committee ISO/TC 2, Fasteners, Subcommittee SC 7, Reference standards for fasteners (mainly covering terminology, dimensioning, sizes and tolerancing). This second edition cancels and replaces the first edition (ISO 1891:1979), which has been technically revised.
37、 BS ISO 1891:2009ISO 1891:2009(E/F/R) viii ISO 2009 All rights reserved/Tous droits rservs/ Avant-propos LISO (Organisation internationale de normalisation) est une fdration mondiale dorganismes nationaux de normalisation (comits membres de lISO). Llaboration des Normes internationales est en gnral
38、confie aux comits techniques de lISO. Chaque comit membre intress par une tude a le droit de faire partie du comit technique cr cet effet. Les organisations internationales, gouvernementales et non gouvernementales, en liaison avec lISO participent galement aux travaux. LISO collabore troitement ave
39、c la Commission lectrotechnique internationale (CEI) en ce qui concerne la normalisation lectrotechnique. Les Normes internationales sont rdiges conformment aux rgles donnes dans les Directives ISO/CEI, Partie 2. La tche principale des comits techniques est dlaborer les Normes internationales. Les projets de Normes internationales adopts par les comits techniques sont
