1、April 2017 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).ICS 21.060.10!%gkj“2687271www.din.deDIN
2、 34817Weld screws with metric thread,English translation of DIN 34817:2017-04Schweischrauben mit metrischem Gewinde,Englische bersetzung von DIN 34817:2017-04Vis souder avec filetage mtrique,Traduction anglaise de DIN 34817:2017-04SupersedesDIN 34817:2001-04www.beuth.deDocument comprises 9 pagesDTra
3、nslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.06.17 DIN 34817:2017-04 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 Designat
4、ion 8 6 Connecting dimensions . 9 DIN 34817:2017-04 3 Foreword This standard has been prepared by Working Committee NA 067-00-02 AA Verbindungselemente mit metrischem Auengewinde of DIN-Normenausschuss Mechanische Verbindungselemente (DIN Standards Committee Fasteners). Attention is drawn to the pos
5、sibility 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 34817:2001-04 as follows: a) the standard has been editorially revised; b) no
6、rmative references have been updated; c) in Table 1, the number of decimal places after the comma has been unified; d) In Table 2, the indications relating to “Material” have been revised. Previous editions DIN 34817: 2001-04 DIN 34817:2017-04 4 1 Scope This standard specifies dimensions and technic
7、al delivery conditions for M5 to M10 and M12 1,5 and M14 1,5 weld screws of product grade A. These weld screws are used for resistance welding. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application.
8、For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. DIN 76-1, Thread run-outs and thread undercuts Part 1: For ISO metric threads in accordance with DIN 13-1 DIN 267-2, Fasteners Technical del
9、ivery conditions Design and dimensional accuracy DIN 962, Bolts, screws, studs and nuts Designation, types and finishes DIN EN 10263-4, Steel rod, bars and wire for cold heading and cold extrusion Part 4: Technical delivery conditions for steels for quenching and tempering DIN EN 26157-3, Fasteners
10、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 carbon steel and alloy steel Part 1: Bolts, screws and studs wit
11、h specified property classes Coarse thread and fine pitch thread DIN EN ISO 3269, Fasteners Acceptance inspection DIN EN ISO 4753, Fasteners Ends of parts with external ISO metric thread DIN EN ISO 4759-1, Tolerances for fasteners Part 1: Bolts, screws, studs and nuts Product grades A, B and C DIN I
12、SO 965-1, ISO general purpose metric screw threads Tolerances Part 1: Principles and basic data DIN ISO 8992, Fasteners General requirements for bolts, screws, studs and nuts DIN 34817:2017-04 5 3 Dimensions The design shown is for illustrative purposes only, (see Figure 1) but the dimensions of scr
13、ews shall be as specified (see Table 1). Symbols and their descriptions are specified in DIN EN ISO 225. a) Screw with fully threaded shank b) Screw with partially threaded shank Key a Thread end chamfered (CH) as in DIN EN ISO 4753 b Length of incomplete thread u 2P c Rounded or chamfered (optional
14、) d Rounded e Dimension x1as in DIN 76-1 Figure 1 Weld screw DIN 34817:2017-04 6 Table 1 Dimensions Dimensions in millimetres Thread size d M5 M6 M8 M10 d Pa M12 1,5 M14 1,5 P a0,8 1 1,25 1,5 a max. 2,4 2,8 3,7 4,4 4,6 4,6 b (auxiliary dimension) 35 37 41 45 49 53 dkNominal size = max. 10 12 16 20 2
15、4 28 min. 9,64 11,57 15,57 19,48 23,48 27,48 dtmax. 8,21 10,11 13,68 17,58 21,67 25,72 min. 7,85 9,75 13,25 17,15 21,15 25,20 h Nominal size = max. 0,8 0,8 1,2 1,4 1,6 1,6 min. 0,7 0,7 1,1 1,3 1,5 1,5 i max. 0,6 0,6 0,6 0,6 0,6 0,8 min. 0,2 0,2 0,2 0,2 0,2 0,3 k Nominal size 2 2,5 3 4 4,8 5,6 max. 2
16、,2 2,7 3,2 4,2 5 5,8 min. 1,8 2,3 2,8 3,8 4,6 5,4 r min. 0,1 0,15 0,15 0,15 0,15 0,2 e Nominal size 1,5 1,5 2 2 2 2,5 max. 1,7 1,7 2,2 2,2 2,2 2,7 min. 1,3 1,3 1,8 1,8 1,8 2,3 f Nominal size 3,5 4 5,5 7,5 9 11 max. 3,9 4,4 5,9 7,9 9,4 11,5 min. 3,1 3,6 5,1 7,1 8,6 10,5 damax. 5,3 6,4 8,4 10,5 13,0 1
17、5,0 dsmax. 5,00 6,00 8,00 10,00 12,00 14,00 min. 4,82 5,82 7,78 9,78 11,73 13,73 DIN 34817:2017-04 7 Table 1 (continued) Dimensions in millimetresThread size d M5 M6 M8 M10 d Pa M12 1,5 M14 1,5 lb,clgdlseNominal size min. max. ls min. lg max. ls min. lg max. ls min. lg max. ls min. lg max. ls min. l
18、g max. ls min. lg max.10 9,71 10,29 12 11,65 12,35 16 15,65 16,35 20 19,58 20,42 25 24,58 25,42 30 29,58 30,42 35 34,5 35,5 40 39,5 40,5 3,0 5,0 45 44,5 45,5 8,0 10,0 5,5 8,0 50 49,5 50,5 13,0 15,0 10,5 13,0 5,8 9,0 55 54,4 55,6 15,5 18,0 10,8 14,0 6,2 10,0 60 59,4 60,6 20,5 23,0 15,8 19,0 11,2 15,0
19、 7,2 11,0 65 64, 65,6 20,8 24,0 16,2 20, 12, 16,0 8,2 12,0 70 69,4 70,6 25,8 29,0 21,2 25,0 17,2 21,0 13,2 17,0 75 74, 75,6 30,8 34,0 26,2 30, 2,2 26,0 18,2 2,0 80 79,3 80,7 35,8 39,0 31,2 35,0 27,2 31,0 23,2 27,0 90 89,3 90,7 41,2 45,0 37,2 41,0 3,2 37,0 100 9,3 10,7 51,2 5,0 47,2 51,0 43,2 47,0 NO
20、TE The range of commercially available lengths is between the stepped continuous lines. aP = Thread pitch bScrews with lengths above the stepped line are not available. cScrews with lengths above the dashed line are threaded to the head. dlg= lnom b els= lg x1(x1as in DIN 76-1) DIN 34817:2017-04 8 4
21、 Technical delivery conditions Technical delivery conditions shall be as in Table 2. Table 2 Technical delivery conditions and reference standards Material Designation Carbon steel with additives with Cmax.= 0,25 % Standard DIN EN 10263-4aGeneral requirements Standard DIN ISO 8992 Thread size Tolera
22、nce 6 g Standard DIN ISO 965-1 Mechanical properties Strength class 8.8 Marking 8.8 Standard DIN EN ISO 898-1 Limit deviations, geometrical tolerances Product grade A Standard DIN EN ISO 4759-1 Surface finish Coating As processed. Surface condition DIN 267-2 applies with regard to surface roughness.
23、 DIN EN 26157-3 applies with regard to limits for surface discontinuities. Acceptance inspection DIN EN ISO 3269 aFor example, 19MnB4 (1.5523), 20MnB4 (1.5525), 23MnB3 (1.5507), 23MnB4 (1.5535), or comparable. In addition to the maximum permissible carbon content of 0,25 %, a max. 0,5 % CEV (carbon
24、equivalent) is recommended in order to ensure the screw weldability. CEV = C +Mn6+Cr+Mo+V5+Cu+Ni15in percent (mass fraction) 5 Designation Designation of an M8 weld screw with a nominal length, l, of 35 mm and assigned to property class 8.8: Weld screw DIN 34817 M8 35 8.8 See DIN 962 for supplementa
25、ry order designations for special screw and bolt types and finishes. DIN 34817:2017-04 9 6 Connecting dimensions Dimensions of clearance holes and sheet thickness shall be according to Figure 2 and Table 3. Bild 2 Key a It should be noted that the components can only be welded properly if the carbon
26、 content of the sheet metal does not exceed 0,15 %. Figure 3 Dimensions of clearance holes and sheet thickness (notation) Table 3 Dimensions of clearance holes and sheet thickness Dimensions in millimetres Thread size, d1M5 M6 M8 M10 M12 1,5 M14 1,5 d45,30+0,16,40+0,28,40+0,210,50+0,2130+0,2150+0,2s 0,8 to 1,5 0,8 to 1,75 1,2 to 2,5 1,5 to 3 2 to 4 2 to 4
