1、October 2016 English price group 8No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 25.140.30!%nV“2577551www.din.deDI
2、N ISO 2936Assembly tools for screws and nuts Hexagon socket screw keys (ISO 2936:2014),English translation of DIN ISO 2936:2016-10Schraubwerkzeuge Winkelschraubendreher fr Schrauben mit Innensechskant (ISO 2936:2014),Englische bersetzung von DIN ISO 2936:2016-10Outils de manoeuvre pour vis et crous
3、Cls mles coudes pour vis six pans creux (ISO 2936:2014),Traduction anglaise de DIN ISO 2936:2016-10SupersedesDIN ISO 2936:200109www.beuth.deDocument comprises 13 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.09.16 A comma is
4、used as the decimal marker. Contents PageNational foreword 31 Scope .52 Normative references 53 Dimensions .64 Method of test 85 Designation .116 Marking .12Bibliography .13Bibliography .4National Annex NA(informative)DIN ISO 2936:2016-10 2 National foreword This document (ISO 2936:2014) has been pr
5、epared by Technical Committee ISO/TC 29 “Small tools”, Subcommittee SC 10 “Assembly tools for screws and nuts, pliers and nippers” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was DIN-Normenausschuss Werkzeuge und Spannzeuge (DIN Standards Committee Tools and
6、Clamping Devices), Working Committee NA 121-05-01 AA Schraubwerkzeuge, Fgewerkzeuge. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. DIN and/or DKE shall not be held responsible for identifying any or all such patent rights. The D
7、IN Standards corresponding to the International Standards referred to in this document are as follows: ISO 898-1 DIN EN ISO 898-1 ISO 898-5 DIN EN ISO 898-5 Amendments This standard differs from DIN ISO 2936:2001-09 as follows: a) values for widths across corners in Table 1 have been corrected; b) t
8、he standard has been editorially revised. Previous editions DIN 911: 1933-10, 1938-05, 1944-03, 1964-11, 1968-01, 1978-09, 1987-03 DIN ISO 2936: 1996-06, 2001-09 DIN ISO 2936:2016-10 3 National Annex NA (informative) Bibliography DIN 6911, Winkelschraubendreher mit Zapfen fr Schrauben mit Innensechs
9、kant DIN EN ISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel Part 1: Bolts, screws and studs with specified property classes Coarse thread and fine pitch thread DIN EN ISO 898-5, Mechanical properties of fasteners made of carbon steel and alloy steel Part 5: Set scr
10、ews and similar threaded fasteners with specified hardness classes Coarse thread and fine pitch thread DIN ISO 2936:2016-10 4 Assembly tools for screws and nuts Hexagon socket screw keys1 ScopeThis International Standard specifies the dimensions, the method of test, the designation, and the marking
11、of hexagon socket screw keys. It also specifies the minimum values of Rockwell hardness that are to be met.The specifications of this International Standard apply for tightening of hexagon socket screws for property class less than or equal to 12,9 as defined in ISO 898-1 and for tightening of socke
12、t set screws as defined in ISO 898-5.NOTE 1 Hexagon socket screw keys are listed under reference number 4 1 03 01 0 in ISO 1703.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated referen
13、ces, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel Part 1: Bolts, screws and studs with specified property classes Coarse thre
14、ad and fine pitch threadISO 898-5, Mechanical properties of fasteners made of carbon steel and alloy steel Part 5: Set screws and similar threaded fasteners with specified hardness classes Coarse thread and fine pitch threadDIN ISO 2936:2016-10 5 3 DimensionsSee Figure 1 and Table 1.KeyaThe corners
15、can be sharp, rounded, or chamfered, and the radius of curvature or the chamfer, f, respectively, shall not be greater than half the difference between width across corners, e, and width across flats, s.fesmaxmaxmin=2Each end shall be square with the axis of each arm within 1.br shall not be smaller
16、 than 1,5 mm, r s.c90+12for width across flats 17 mm;90+13for width across flats 17 mm.Figure 1 Hexagon socket screw keyDIN ISO 2936:2016-10 6 Table 1 DimensionsDimensions in millimetresWidth across flatssWidth across cornerseal1l2nom. max. min. max. min.StandardLong ExtralongLimit deviationsLimit d
17、eviations0,7 0,71 0,70 0,79 0,76 33 207200,9 0,89 0,88 0,99 0,96 33 111,3 1,27 1,24 1,42 1,37 41 63,5 81 131,5 1,50 1,48 1,68 1,63b46,5 63,5 91,5 15,52 2,00 1,96 2,25 2,18c52 77 102 182,5 2,50 2,46 2,82 2,75c58,5 87,5 114,54020,53 3,00 2,96 3,39 3,31c66 93 129 233,5 3,50 3,45 3,96 3,91 69,5 98,5 140
18、 25,54 4,00 3,95 4,53 4,43c74 104 144 294,5 4,50 4,45 5,10 5,04 80 114,5 156 30,55 5,00 4,95 5,67 5,57d85 120 165 336 6,00 5,95 6,81 6,70d96 141 186 387 7,00 6,94 7,95 7,85 102 147 19760418 8,00 7,94 9,09 8,97 108 158 208 449 9,00 8,94 10,23 10,10 114 169 219 4710 10,00 9,94 11,37 11,23 122 180 234
19、5011 11,00 10,89 12,51 12,31 129 191 247 5312 12,00 11,89 13,65 13,44 137 202 262 57DIN ISO 2936:2016-10 7 Table 1 (continued)Width across flatssWidth across cornerseal1l2nom. max. min. max. min.StandardLong ExtralongLimit deviationsLimit deviations13 13,00 12,89 14,79 14,57 145 213 27770633014 14,0
20、0 13,89 15,93 15,70 154 229 294 7015 15,00 14,89 17,07 16,83 161 240 307 7316 16,00 15,89 18,21 17,96 168 240 307 7617 17,00 16,89 19,35 19,09 177 262 337 8018 18,00 17,89 20,49 20,22 188 262 358 8419 19,00 18,87 21,63 21,32 199 8921 21,00 20,87 23,91 23,58 211 120965022 22,00 21,87 25,05 24,71 222
21、10223 23,00 22,87 26,19 25,84 233 10824 24,00 23,87 27,33 26,97 248 11427 27,00 26,87 30,75 30,36 277 12729 29,00 28,87 33,03 32,62 311 14130 30,00 29,87 34,17 33,75 315 14232 32,00 31,84 36,45 35,98 347 15736 36,00 35,84 41,01 40,50 391 176aemax= 1,14 smax 0,03 (from 1,5 s 36);emin= 1,13 smin(from
22、8 s 36).bemin= 1,13 smin 0,04.cemin= 1,13 smin 0,03.demin= 1,13 smin 0,02.4 Method of testInsert the short arm of the key into a female hexagon socket adapter having a Rockwell hardness as given in Table 3. Smoothly apply an increasing load at a distance m from the end of the long arm of the key (wh
23、ere m = l1/3, with a tolerance of 2 mm) until the proof torque is reached. It shall be ensured throughout the whole test procedure that the friction lock contact with the tool surface is maintained over the total area of the force-initiating contact area b as given in Table 2. The load shall be appl
24、ied perpendicular to the axis of the key, and the torque is calculated as the product of the applied load and the distance between the point of application of the load and the axis of the adapter. Test values are given in Table 3.Following the application of the minimum test torque, any possible dam
25、age or deformation shall not affect the usability of the key.For a key with a width across the flats of up to 14 mm, the hexagon socket screw key shall show a total deformation, to torsion fracture, of at least 60 under load and a permanent deformation before failure.DIN ISO 2936:2016-10 8 Key1 fema
26、le hexagon socket adapterFigure 2 Test configurationTable 2 Test dimensions for forceinitiating contact areaDimensions in millimetresWidth across flatsnom.b0,7 to 5 10 1 5 to 17 20 1 17 50 1DIN ISO 2936:2016-10 9 Table 3 Test valuesWidth across flats of keysMinimum Rockwell hardness of keyaMinimum p
27、roof torquebMdWidth across flats of hexagon socket adaptercKey engagementdtmax. min.Limit deviationsmm HRC N m mm mm mm mm0,7520,08 0,724 0,711 1,501+0,9 0,18 0,902 0,889 1,71,3 0,53 1,295 1,270 21,5 0,82 1,545 1,520 22 1,9 2,045 2,020 2,52,5 3,8 2,560 2,520 33 6,6 3,080 3,020 3,53,5 10,3 3,595 3,52
28、0 4,54 16 4,095 4,020 54,5 22 4,595 4,520 5,55 30 5,095 5,020 66 52 6,095 6,020 87 80 7,115 7,025 98 120 8,115 8,025 10DIN ISO 2936:2016-10 10 Table 3 (continued)Width across flats of keysMinimum Rockwell hardness of keyaMinimum proof torquebMdWidth across flats of hexagon socket adaptercKey engagem
29、entdtmax. min.Limit deviationsmm HRC N m mm mm mm mm948165 9,115 9,025 1102+10 220 10,115 10,025 1211 282 11,142 11,032 1312 370 12,142 12,032 1513 470 13,142 13,032 1614 590 14,142 14,032 171545725 15,230 15,050 1816 880 16,230 16,050 1917 980 17,230 17,050 2018 1 158 18,230 18,050 21,519 1 360 19,
30、275 19,065 2321 1 840 21,275 21,065 2522 2 110 22,275 22,065 2623 2 414 23,275 23,065 27,524 2 750 24,275 24,065 2927 3 910 27,275 27,065 3229 4 000 29,275 29,065 3530 4 000 30,330 30,080 3632 4 000 32,330 32,080 3836 4 000 36,330 36,080 43aThe hexagon socket screw keys shall be hardened to a throug
31、h hardness over their whole length.bMd= 0,85 (0,7 Rm) (0,224 5 s3), where Rmis the tensile strength. This formula does not apply to keys of widths across flats s from 29 mm s 36 mm.cHardness of the test hexagon socket adapter:s 17 mm: 60 HRC min.s 17 mm: 55 HRC min.Width across corners of hexagon so
32、cket adapter: emin.= emax. (Table 1)+ 0,05.dt 1,2 s (t 1,5 s for sizes smaller than 1,5 mm). These values apply to the test only. In practice, key engagement is less.5 DesignationA socket screw key conforming to this International Standard shall be designated by:a) “Socket screw key”;b) a reference
33、to this International Standard, i.e. ISO 2936;c) its width across the flats, s, in millimetres;d) capital letter M, in the case of the design with a long length;DIN ISO 2936:2016-10 11 e) capital letter L, in the case of the design with an extra-long length.EXAMPLE 1 A hexagon socket screw key with
34、a width across flats s = 10 mm is designated as follows:Socket screw key ISO 293610EXAMPLE 2 A hexagon socket screw key with a width across flats s = 10 mm and long length (M) is designated as follows:Socket screw key ISO 293610 MEXAMPLE 3 A hexagon socket screw key with a width across flats s = 10
35、mm and extra-long length (L) is designated as follows:Socket screw key ISO 293610 L6 MarkingHexagon socket screw keys of 3 mm in size and above shall be marked legibly and permanently with at least:a) the name or trademark of the manufacturer (or supplier);b) the width across flats.If not worked on the tool itself, this information shall be given at least on the smallest commonly used packaging unit.DIN ISO 2936:2016-10 12 Bibliography1 ISO 1703, Assembly tools for screws and nuts Designation and nomenclatureDIN ISO 2936:2016-10 13
