© ISO 2016 Assembly tools for screws and nuts — Open ended wrenches, box wrenches and combination wrenches — Maximum widths of heads Outils de manœuvre pour vis et écrous — Clés à fourche, clés polygo[.]
INTERNATIONAL STANDARD ISO 3318 Fifth edition 2016-12-15 Assembly tools for screws and nuts — Open-ended wrenches, box wrenches and combination wrenches — Maximum widths of heads Outils de man œuvre pour vis et écrous — Clés fourche, clés polygonales et clés mixtes — Largeurs maximales d’encombrement des têtes Reference number ISO 3318:2016(E) I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n © ISO 2016 ISO 3318:2016(E) COPYRIGHT PROTECTED DOCUMENT © ISO 2016, Published in Switzerland All rights reserved Unless otherwise specified, no part o f this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission Permission can be requested from either ISO at the address below or ISO’s member body in the country o f the requester ISO copyright o ffice Ch de Blandonnet • CP 401 CH-1214 Vernier, Geneva, Switzerland Tel +41 22 749 01 11 Fax +41 22 749 09 47 copyright@iso.org www.iso.org ii I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n ISO 3318:2016(E) Contents Page Foreword iv Scope Normative references Terms and definitions Dimensions Bibliography © ISO 2016 – All rights reserved I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n iii ISO 3318:2016(E) Foreword I SO (the I nternational O rganiz ation for Standardiz ation) is a worldwide federation of national s tandards bodies (ISO member bodies) The work o f preparing International Standards is normally carried out through ISO technical committees Each member body interested in a subject for which a technical committee has b een es tablished has the right to b e represented on that committee I nternational organi zation s , governmental and non- governmental, in liaison with I SO, al so take p ar t in the work ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters o f elec trotechnical s tandardi z ation T he procedures used to develop this cument and those intended for its fur ther maintenance are describ ed in the I SO/I E C D irec tives , Par t I n p ar ticu lar the different approval criteria needed for the di fferent types o f ISO documents should be noted This document was dra fted in accordance with the editorial ru les of the I SO/I E C D irec tives , Par t (see www iso org/direc tives) Attention is drawn to the possibility that some o f the elements o f this document may be the subject o f patent rights ISO shall not be held responsible for identi fying any or all such patent rights Details o f any patent rights identified during the development o f the document will be in the Introduction and/or on the I SO l is t of p atent declarations received (see www iso org/p atents) Any trade name used in this document is in formation given for the convenience o f users and does not cons titute an endors ement For an explanation on the meaning o f ISO specific terms and expressions related to formity assessment, as well as information about I SO ’s adherence to the World Trade O rganization ( WTO) principles in the Technical B arriers to Trade (TB T ) see the following URL: www.iso.org/iso/foreword html T he committee res p ons ible for this cument is I SO/ TC 9, tools for screws and nuts, pliers and nippers Small tools, Sub committee SC 10 , Assembly This fi fth edition cancels and replaces the fourth edition (ISO 3318:2009), which has been technically revised with the fol lowing changes: a) revis ion of s i zes covered in Table , with the addition o f nominal widths across flats not covered by I SO 72 ; b) the scop e and title have b een changed to also cover s ingle-headed wrenches; c) deletion o f Clause “Technical specifications”, as these are given in ISO 1711-1 iv I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n INTERNATIONAL STANDARD ISO 3318:2016(E) Assembly tools for screws and nuts — Open-ended wrenches, box wrenches and combination wrenches — Maximum widths of heads Scope This c u ment s p e c i fie s the ma xi mum wrenches and combination wrenches NO TE outs ide he ad d i men s ion s for op en- ende d wrenche s , b ox T he wrenche s co vere d b y th i s c u ment a re the o ne s identi fie d i n I S O 170 : 0 u nder re ference nos 1 01 02 0, 1 01 05 0, 1 01 06 0, 1 02 03 0, 1 02 04 0, 1 02 05 0, 1 02 06 0, 1 02 01 0, 1 02 02 and 1 02 08 NOTE Box wrenches can also be designated as ring wrenches T h i s c u ment e s no t cover te ch n ic a l s p e ci fic ation s given in ISO 1711-1 for the s e pro duc ts Te ch n ic a l s p e ci fic ation s are Normative references T he fol lowi ng c u ments are re ferre d to i n the tex t i n s uch a way th at s ome or a l l o f thei r content s titute s re qu i rements o f th i s c u ment For date d re ference s , on ly the e d ition cite d app l ie s For u ndate d re ference s , the late s t e d ition o f the re ference d c ument (i nclud i ng a ny amend ments) appl ie s ISO 691, Assembly tools for screws and nuts — Wrench and socket openings — Tolerances for general use Terms and definitions No term s and defi nition s a re l i s te d i n th i s c u ment ISO and IEC maintain terminological databases for use in standardization at the following addresses: — IEC Electropedia: available at http://www.electropedia.org/ — ISO Online browsing platform: available at http://www.iso.org/obp Dimensions See Figures and and Table for the dimensions T he d rawi ngs are s chematic and are no t i ntende d to s p e c i fy a given de s ign; on ly the d i men s ion s given shall be complied with Figure — Open-end © ISO 2016 – All rights reserved I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n ISO 3318:2016(E) Figure — Box end Table — Maximum outside head dimensions N o m i n a l w i d t h a c r o s s f l a t s sa b1 b b2 c mm mm ma x ma x 3,2 14 15 18 10 5,5 19 10 , 6d 20 11 , 22 12 ,5 24 14 9d 25 16 10 28 17 11 30 18, 12d 31 20 13 34 21 , 14 d 36 23 15 39 4, 16 41 26 17d 42 27 18 45 29 19 d 47 31 20 49 31 , 21 51 33,5 22d 53 35 23 55 36,5 24 57 38 25d 59 9, 27 64 42 , 30 70 47 32d 74 50 34 78 53 36 83 56 a To lera nce s i n acco rda nce with I S O 69 b b1 m a x c b2 m a x ≈ d N o m i n a l width ac ro s s fl ats no t co ve re d b y I S O I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n ≈ ,1 s + s 1,5 s + s ISO 3318:2016(E) Table (continued) N o m i n a l w i d t h a c r o s s f l a t s sa a b c d 41 46 50 55 60 65 Tolerances in accordance with ISO 691 b 1max ≈ ,1 mm max 93 104 112 123 133 140 b2 c mm max 63,5 71 77 84,5 92 102 s + s b 2max ≈ , s + s N o m i n a l width ac ro s s fl ats no t co vere d b y I S O © ISO 2016 – All rights reserved I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n b1 b ISO 3318:2016(E) Bibliography Fasteners — Hexagon products — Widths across flats [1] I S O 72 , [2 ] I S O 1703 : 0 , [3 ] I S O 1711-1 , Assembly tools for screws and nuts — Designation and nomenclature Assembly tools for screws and nuts — Technical specifications — Part 1: Hand-operated wrenches and sockets I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n ISO 3318:2016(E) ICS 25.140.30 Price based on pages © ISO 2016 – All rights reserved I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n