1、May 2016 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!%dP“2655945www.din.deDIN 25
2、09Fasteners Double end studs,English translation of DIN 2509:2016-05Mechanische Verbindungselemente Schraubenbolzen,Englische bersetzung von DIN 2509:2016-05Fixations Goujon filet,Traduction anglaise de DIN 2509:2016-05SupersedesDIN 2509:1986-09www.beuth.deDocument comprises 10 pagesDTranslation by
3、DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.05.17 DIN 2509:2016-05 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 . 7 5 Designation 8 Ann
4、ex A (informative) Example of application 9 Bibliography 10 DIN 2509:2016-05 3 Foreword This standard has been prepared by Working Committee NA 067-00-08 AA Verbindungselemente mit Sonderformen und aus Kunststoff of DIN-Normenausschuss Mechanische Verbindungselemente (DIN Standards Committee Fastene
5、rs). The DIN 4000-160-5 tabular layout of product properties applies to double end studs covered in this standard. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights without these having been identified here. DIN and/or DKE shall not
6、be held responsible for identifying any or all such patent rights. Amendments This standard differs from DIN 2509:1986-09 as follows: a) the standard has been editorially revised; b) normative references have been updated; c) a warning statement has been included in Clause 3 regarding reduced loadab
7、ility of double end studs with thread undercut; d) in Table 2 under “Mechanical properties”, an additional property class (8.8.) has been added; e) the application example has been transferred to a new, informative Annex A. Previous editions DIN 2509: 1928-10, 1947-10, 1960-11, 1968-04, 1970-11, 198
8、6-09 DIN 2509:2016-05 4 1 Scope This standard specifies requirements for double end studs with a flattened dog point on one thread end. Double end studs are designed primarily to be used for clamping two components together by tightening nuts that are screwed onto both ends. For sizes up to M39, thi
9、s standard specifies two thread lengths for each size. NOTE It is recommended that stud bolts with short-thread studs only be used as spare parts for existing designs, and for sizes exceeding M39. 2 Normative references The following documents, in whole or in part, are normatively referenced in this
10、 document and are indispensable for its application. 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 accord
11、ance with DIN 13-1 DIN 267-2, Fasteners Technical delivery conditions Design and dimensional accuracy DIN EN 26157-1, Fasteners Surface discontinuities Bolts, screws and studs subject to general requirements DIN EN ISO 225, Fasteners Bolts, screws, studs and nuts Symbols and descriptions of dimensio
12、ns 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 3269, Fasteners Acceptance inspection DIN EN ISO 4042, Fasteners Electroplated coatings DIN EN I
13、SO 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 EN ISO 10684, Fasteners Hot dip galvanized coatings DIN ISO 965-1, ISO general purpose metric screw threads Tolerances Part
14、 1: Principles and basic data DIN ISO 8992, Fasteners General requirements for bolts, screws, studs and nuts DIN 2509:2016-05 5 3 Dimensions WARNING Fasteners with thread undercut do not fulfil the minimum proof load and ultimate tensile load requirements according to DIN EN ISO 898-1. For dimension
15、s see Figure 1 and Table 1. Symbols and their descriptions are specified in DIN EN ISO 225. Thread end type CH as in DIN EN ISO 4753 (u (incomplete thread) = max. 2P) Thread undercut type A as in DIN 76-1 (g2= max. 3,5P) Figure 1 Dimensions The length l is to be calculated from the clamping length +
16、 2 v1(length of projection) (see example of application in Annex A, Figure A.1). The resulting minimum dimension shall be rounded to the next higher multiple of five mm. For length l, tolerance zone js15 shall apply. The formula for calculating b takes into account a 5 mm step, as follows: b = v1+ g
17、2+ 2,5 mm (where 2,5 mm is a half step). DIN 2509:2016-05 6 Table 1 Dimensions Dimensions in millimetres Thread size (d) M12 M16 M20 M24 M27 M30 M33 M36 M39 M42 Pa1,75 2 2,5 3 3 3,5 3,5 4 4 4,5 bbShort threadcmin. = nominal size 21 25 30 36 38 42 44 50 52 57 max. 23,5 28 34 40,5 42,5 47 49 56 58 64
18、Long thread min. = nominal size 23 28 34 40 43 47 50 55 58 max. 25,5 31 37 44,5 47,5 52 55 61 64 v1min. 13,5 17 21 25 28 31 33 37 39 43 dsmax. = nominal size 12 16 20 24 27 30 33 36 39 42 min. 11,82 15,82 19,79 23,79 26,79 29,79 32,75 35,75 38,75 41,75 dpmax. = nominal size 8 12 14 14 18 18 25 25 28
19、 28 min. 7,78 11,73 13,73 13,73 17,73 17,73 24,67 24,67 27,67 27,67 s max. = nominal size 7 10 11 11 13 13 22 22 24 24 min. 6,82 9,78 10,73 10,73 12,73 12,73 21,67 21,67 23,67 23,67 z Nominal size 4 5 6 6 6 6 9 9 10 10 max. 4,24 5,24 6,24 6,24 6,24 6,24 9,29 9,29 10,29 10,29 min. 3,76 4,76 5,76 5,76
20、 5,76 5,76 8,71 8,71 9,71 9,71 Thread size (d) M45 M48 M52 M56 M60 M64 M726 M806 M906 M1006 Pa4,5 5 5 5,5 5,5 6 bbShort thread min. = nominal size 58 64 68 73 76 82 89 95 103 111 max. 65 71,5 75,5 81 84 91 98 104 112 120 v1min. 45 48 52 56 59 63 70 76 84 92 dsmax. = nominal size 45 48 52 56 60 64 72
21、 80 90 100 min. 44,75 47,75 51,7 55,7 59,7 63,7 71,7 79,7 89,65 99,65 dpmax. = nominal size 32 32 36 36 42 42 50 50 50 50 min. 31,61 31,61 35,61 35,61 41,61 41,61 49,61 49,61 49,61 49,61 s max. = nominal size 27 27 30 32 36 36 41 41 41 41 min. 26,67 26,67 29,67 31,61 35,38 35,38 40,38 40,38 40,38 40
22、,38 z Nominal size 11 11 12 13 14 14 15 15 15 15 max. 11,35 11,35 12,35 13,35 14,35 14,35 15,35 15,35 15,35 15,35 min. 10,65 10,65 11,65 12,65 13,65 13,65 14,65 14,65 14,65 14,65 aP = Thread pitch b Long-thread studs are at present not customary for nominal sizes M42 (see Clause 1, “Scope”). c Not i
23、ntended for new designs. DIN 2509:2016-05 7 4 Technical delivery conditions See Table 2. Table 2 Technical delivery conditions Material Steel General requirements Standard As specified in DIN ISO 8992 Thread Tolerance class 6g Standard DIN ISO 965-1 Mechanical propertiescProperty classa,b(material)
24、5.6, 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. DIN 267-2 applies with regard to surface roughness. DIN EN ISO 4042 applies with regard to electroplating. DIN EN ISO 10684 applies with regard
25、to hot dip galvanizing. Additional requirements, other surface finishes or coatings are to be agreed between the supplier and the customer. Surface discontinuities DIN EN 26157-1 applies with regard to limits for surface discontinuities. Acceptance inspection DIN EN ISO 3269dapplies with regard to a
26、cceptance inspection. a If no property class is specified in the designation as a result of earlier editions of this standard, the property class is 5.6. bFasteners with thread undercut do not fulfil the minimum proof load and ultimate tensile load requirements according to DIN EN ISO 898-1. c Other
27、 property classes or materials shall be subject to agreement. d For major characteristics and minor characteristics the following shall apply: Major characteristics: Thread size d Diameter of the unthreaded shank dsThread length b Minor characteristics: Thread undercut Long dog point dimensions For
28、the acceptable quality level, the following shall apply: AQL 1 for major characteristics AQL 1,5 for minor characteristics DIN 2509:2016-05 8 5 Designation Designation of an M30 double end stud with short thread (K), of length l = 200 mm, assigned to property class 5.6: Double end stud DIN 2509 K M3
29、0 200 5.6 Designation of an M30 double end stud with long thread (L), of length l = 200 mm, assigned to property class 8.8: Double end stud DIN 2509 L M30 200 8.8 The short thread shall also be used in cases where no thread length has been specified in existing documentation. DIN 2509:2016-05 9 Annex A (informative) Example of application Key v1Bolt end protrusion 1 Hexagon nut a Clamping length Figure A.1 Example of application DIN 2509:2016-05 10 Bibliography DIN 4000-160, Tabular layout of product properties Part 160: Fasteners with external thread
