1、December 2012 Translation by DIN-Sprachendienst.English price group 7No 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).IC
2、S 21.060.10!%#H“2000037www.din.deDDIN 938Studs Metal end 1 d,English translation of DIN 938:2012-12Stiftschrauben Einschraubende 1 d,Englische bersetzung von DIN 938:2012-12Goujons Ct implantation 1 d,Traduction anglaise de DIN 938:2012-12SupersedesDIN 938:2012-03www.beuth.deDocument comprises 9 pag
3、esIn case of doubt, the German-language original shall be considered authoritative.09.13 DIN 938:2012-12 2 A comma is used as the decimal marker. Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Dimensions .5 4 Technical delivery conditions 8 5 Designation 9 DIN 938:2012-12 3 Foreword T
4、his standard has been prepared by Working Committee NA 067-00-02 AA Verbindungselemente mit metrischem Innengewinde of the Normenausschuss Mechanische Verbindungselemente (FMV) (Fasteners Standards Committee). The DIN 4000-160-5 tabular layout of product properties shall apply to studs covered by th
5、is standard. 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. Amendments This standard differs from DIN 938:1995-02 as follows: a) the stan
6、dard has been editorially revised; b) the scope has been rendered more precise; c) shank diameter dshas been included in Table 1 and Figure 1; d) the technical delivery conditions have been updated; e) zinc flake coatings have been added to Table 2; f) according to DIN EN ISO 225, symbols b1and b2ha
7、ve been changed to bmand b; g) the designation examples have been expanded. Compared with DIN 938:2012-03, the following corrections have been made: a) in Table 1, x2values have been corrected for M4, M5 and M6; b) the top bold stepped line in Table 1 has been changed to a dashed line. Previous edit
8、ions DIN 938-1: 1926-01, 1943-12, 1951-09, 1953-03 DIN 938: 1972-12, 1995-02, 2012-03 DIN 938:2012-12 4 1 Scope This document specifies studs with a thread length at the stud end bmof approximately 1 d in product grade A with metric coarse threads from M3 up to M52 and with fine pitch threads from M
9、81 up to M523. Studs as in this standard are for use mainly in steel. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated referenc
10、es, the latest edition of the referenced document (including any amendments) applies. DIN 13-51, ISO general purpose metric screw threads Part 51: External screw threads for transition fits (former: screw threads for interference fit) Tolerances, limit deviations, limits of sizes DIN 76-1, Thread ru
11、n-outs and thread undercuts Part 1: For ISO metric threads in accordance with DIN 13-1 DIN 267-2, Fasteners Technical delivery conditions Design and dimensional accuracy DIN 962, Bolts, screws, studs and nuts Designation, types and finishes DIN 4000-160, Tabular layout of product properties Part 160
12、: Fasteners with external thread DIN EN 26157-3, Fasteners Surface discontinuities Bolts, screws and studs subject to special requirements DIN EN ISO 225, Fasteners Bolts, screws, studs and nuts Symbols and descriptions of dimensions DIN EN ISO 898-1, Mechanical properties of fasteners made of carbo
13、n steel and alloy steel Part 1: Bolts, screws and studs with specified property classes Coarse thread and fine pitch thread DIN EN ISO 3269, Fasteners Acceptance inspection DIN EN ISO 4042, Fasteners Electroplated coatings DIN EN ISO 4753, Fasteners Ends of parts with external ISO metric thread DIN
14、EN ISO 4759-1, Tolerances for fasteners Part 1: Bolts, screws, studs and nuts Product grades A, B and C DIN EN ISO 10683, Fasteners Non-electrolytically applied zinc flake coatings DIN ISO 261, ISO general purpose metric screw threads General plan DIN ISO 965-1, ISO general purpose metric screw thre
15、ads Tolerances Part 1: Principles and basic data DIN ISO 8992, Fasteners General requirements for bolts, screws, studs and nuts DIN 938:2012-12 5 3 Dimensions See Figure 1 and Table 1. Symbols and their descriptions are specified in DIN EN ISO 225. Stud end Nut end aFor types and marking of thread e
16、nds see explanatory remarks in Table 1. bu 1,5 P Figure 1 Stud Thread end of type FL as in DIN EN ISO 4753 (Example) (notation) DIN 938:2012-12 6 Table 1 Dimensions Dimensions in millimetres d M3 M4 M5 M6 (M7) M8 M10 M12 (M14) M16 (M18) M20 M81 M101,25 M121,25 (M141,5) M161,5 (M181,5) M201,5 M121,5
17、bm3 4 5 6 7 8 10 12 14 16 18 20 ba 12 14 16 18 20 22 26 30 34 38 42 46 b 18 20 22 24 26 28 32 36 40 44 48 52 c 45 49 53 57 61 65 dsmax. 3 4 5 6 7 8 10 12 14 16 18 20 min. 2,86 3,82 4,82 5,82 6,78 7,78 9,78 11,73 13,73 15,73 17,73 19,67 x1d1,25 1,75 2,0 2,5 2,5 3,2 3,8 4,3 5,0 5,0 6,3 6,3 x2d0,7 0,9
18、1,0 1,25 1,25 1,6 1,9 2,2 2,5 2,5 3,2 3,2 l js 15 Mass (7,85 kg/dm3) kg/1 000 units 12 (14) 16 (18) 0,981 20 1,09 1,95 (22) 1,20 2,15 3,47 25 1,37 2,44 3,93 5,68 (28) 1,53 2,74 4,39 6,35 8,99 30 1,64 2,94 4,70 6,79 9,59 12,5 35 3,43 5,47 7,90 11,1 14,8 23,2 40 3,93 6,24 9,01 12,6 16,4 26,3 38,8 45 7
19、,01 10,1 14,1 18,4 29,4 43,2 60,0 50 7,78 11,2 15,6 20,4 32,4 47,7 66,0 89,6 55 12,3 17,1 22,4 35,5 52,1 72,1 97,5 123 60 13,4 18,7 24,3 38,6 56,6 78,1 105 133 170 65 20,2 26,3 41,7 61,0 84,2 113 143 182 70 21,7 28,3 44,8 65,4 90,2 121 153 185 75 30,3 47,9 69,9 96,3 129 163 207 80 32,2 50,9 74,3 102
20、 137 173 219 (85) 54,0 78,8 108 145 183 232 90 57,1 83,2 114 153 193 244 (95) 60,2 87,6 120 161 203 256 100 63,3 92,1 126 169 213 269 110 101 139 184 233 293 120 110 151 200 253 318 130 163 216 273 342 140 175 232 293 367 150 247 313 392 160 263 333 417 170 353 441 180 373 466 190 491 200 515 DIN 93
21、8:2012-12 7 Table 1 (continued) Dimensions in millimetres d (M22) M24 (M27) M30 (M33) M36 (M39) M42 (M45) M48 (M52) (M221,5) M242 (M272) M302 (M332) M363 (M393) M423 (M453) M483 (M523) bm22 24 25 30 32 35 38 42 45 48 52 b a50 54 60 66 72 78 84 90 96 102 110 b56 60 66 72 78 84 90 96 102 108 116 c69 7
22、3 79 85 91 97 103 109 115 121 129 dsmax. 22 24 27 30 33 36 39 42 45 48 52 min. 21,67 23,67 26,67 29,67 32,61 35,61 39,61 41,61 44,61 47,61 51,54 x1d6,3 7,5 7,5 9,0 9,0 10,0 10,0 11,0 11,0 12,5 12,5 x2d3,2 3,8 3,8 4,5 4,5 5,0 5,0 5,5 5,5 6,3 6,3 l js 15 Mass (7,85 kg/dm3) kg/1 000 units 50 55 60 65 2
23、26 70 241 287 75 256 305 392 80 271 323 414 85 286 340 437 553 90 301 358 459 580 718 (95) 316 376 482 608 752 100 330 394 504 636 785 942 110 360 429 549 691 852 1 022 1 228 120 390 465 594 747 919 1 102 1 322 1 550 1 822 130 420 500 639 802 986 1 182 1 416 1 659 1 947 2 216 140 450 536 684 858 1 0
24、54 1 262 1 509 1 767 2 072 2 358 2 837 150 480 571 729 913 1 121 1 342 1 603 1 876 2 197 2 500 3 004 160 509 607 774 969 1 188 1 421 1 697 1 985 2 321 2 642 3 170 170 539 642 819 1 024 1 255 1 501 1 791 2 094 2 446 2 784 3 337 180 569 678 864 1 080 1 322 1 581 1 884 2 202 2 571 2 926 3 504 190 599 7
25、13 909 1 135 1 389 1 661 1 978 2 311 2 696 3 068 3 671 200 629 749 953 1 191 1 456 1 741 2 072 2 420 2 821 3 210 3 837 220 1 043 1 302 1 591 1 901 2 259 2 637 3 071 3 494 4 171 240 1 133 1 413 1 725 2 061 2 447 2 855 3 320 3 779 4 504 260 1 223 1 524 1 859 2 220 2 635 3 072 3 570 4 063 4 838 280 1 3
26、13 1 635 1 994 2 380 2 822 3 290 3 820 4 347 5 171 300 1 746 2 128 2 540 3 010 3 507 4 069 4 631 5 504 320 2 262 2 700 3 197 3 725 4 319 4 915 5 838 340 2 396 2 860 3 385 3 942 4 569 5 199 6 171 360 3 019 3 572 4 160 4 819 5 483 6 505 380 3 760 4 377 5 086 5 767 6 838 400 3 947 4 595 5 318 6 051 7 1
27、72 DIN 938:2012-12 8 Table 1 (continued) aFor l 125 mm bFor 125 mm 200 mm dAccording to DIN 76-1. Lengths exceeding 400 mm shall be graded in increments from 20 mm to 20 mm. Bracketed sizes and intermediate lengths should be avoided if possible. The range of commercially available lengths for studs
28、with coarse threads is between the stepped continuous lines. Studs with lengths above the upper stepped continuous line cannot be manufactured to the given nut end thread lengths b. For these studs the thread length is b l (x1+ 3). For studs with lengths above the stepped dashed line the following a
29、pplies: b + x1M39: subject to agreement Standard DIN EN ISO 898-1 Limit deviations, geometrical tolerances Product grade A Standard DIN EN ISO 4759-1 Surface finish Coating As processed. For surface roughness, DIN 267-2 applies. DIN EN ISO 4042 applies with regard to electroplating. DIN EN ISO 10683
30、 applies with regard to non-electrolytically applied zinc flake coatings. Surface dicontinuities DIN EN 26157-3 applies with regard to surface discontinuities. Acceptance inspection DIN EN ISO 3269 applies with regard to acceptance inspection. aAccording to DIN 267-2, tolerance class Sk 6 applies to
31、 the stud end of the thread, unless Fo (= without interference-fit thread) or Sn 4 is specified in the designation (see Clause 5). aOther product grades or materials shall be subject to agreement. DIN 938:2012-12 9 5 Designation Designation of an M12 stud with interference-fit thread and a stud end
32、thread of tolerance class Sk 6, with a nominal length l = 80 mm and assigned to property class 8.8: Stud DIN 938 M12 80 8.8 Designation of a stud with interference-fit thread M12 1,25 and a stud end thread of tolerance class Sn 4, with a nominal length l = 80 mm and assigned to property class 8.8: S
33、tud DIN 938 M12 1,25 Sn 4 80 8.8 Designation of an M12 stud without interference-fit thread (Fo) and with a nominal length l = 80 mm, assigned to property class 8.8: Stud DIN 938 M12 Fo 80 8.8 If studs are to be delivered with different thread pitches at both the stud and nut ends, this shall be indicated in the designation, with the stud end to come first, e.g.: Stud DIN 938 M12 M12 1,25 80 8.8 See DIN 962 for supplementary order designations for special stud types and finishes.
