1、September 2010 Translation by DIN-Sprachendienst.English price group 6No 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).I
2、CS 21.060.10!$ldh“1736569www.din.deDDIN 608Flat countersunk head square neck bolts with short squareEnglish translation of DIN 608:2010-09Senkschrauben mit niedrigem VierkantansatzEnglische bersetzung von DIN 608:2010-09Corps de boulons tte fraise, collet carr en basTraduction anglaise de DIN 608:20
3、10-09SupersedesDIN 608:1981-10www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.903.11 DIN 608:2010-09 A comma is used as the decimal marker. Contents Page Foreword. 3 1 Scope . 4 2 Normative references . 4 3 Dimensions 5 4 Technical
4、 delivery conditions . 7 5 Masses . 7 6 Designation . 8 Bibliography . 9 2 DIN 608:2010-09 Foreword This standard has been prepared by Working Committee NA 067-00-08 AA Verbindungselemente mit Sonder-formen und aus Kunststoff of the Normenausschuss Mechanische Verbindungselemente (Fasteners Standard
5、s Committee). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. DIN shall not be held responsible for identifying any or all such patent rights. Amendments This standard differs from DIN 608:1981-10 as follows: a) normative referenc
6、es have been updated; b) the English and French titles of the standard have been brought in line with DIN ISO 1891; c) dimension “f ” has been replaced by “fn”; d) Clause 4 “Technical delivery conditions” has been completely revised. Previous editions DIN 567: 1926-01, 1936x-04 DIN 567 Supplement: 1
7、926-10 DIN 608: 1926-04, 1936-07, 1967-12, 1970-11, 1981-10 DIN 608-1: 1941-01, 1953-05, 1963-03 3 DIN 608:2010-09 1 Scope This standard specifies properties for sizes M10 and M12 flat countersunk head square neck bolts with short square of product grade C. 2 Normative references The following refer
8、enced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. DIN 962, Designation system for fasteners DIN EN 26157-1, Fasteners
9、Surface discontinuities Bolts, screws and studs subject to general 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
10、h specified property classes Coarse thread and fine pitch thread DIN EN ISO 3269, Fasteners Acceptance inspection DIN EN ISO 3506-1, Mechanical properties of corrosion-resistant stainless steel fasteners Part 1: Bolts, screws and studs DIN EN ISO 4032, Hexagon nuts, style 1 Product grades A and B DI
11、N EN ISO 4034, Hexagon nuts Product grade C DIN EN ISO 4042, Fasteners Electroplated coatings DIN EN ISO 4753, Fasteners Ends of parts with external metric ISO 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 10683, Fastene
12、rs Non-electrolytically applied zinc flake coatings DIN EN ISO 10684, Fasteners Hot dip galvanized coatings DIN ISO 724, ISO general purpose metric screw threads Basic dimensions DIN ISO 965-1, ISO general purpose metric screw threads Tolerances Part 1: Principles and basic data DIN ISO 8992, Fasten
13、ers General requirements for bolts, screws, studs and nuts 4 DIN 608:2010-09 3 Dimensions See Figure 1 and Table 1. Symbols and designations are given in DIN EN ISO 225. Key au 2 P Figure 1 Dimensions of flat countersunk head square neck bolt with short square (notation) Thread end chamfered (CH) or
14、 rounded (RN) as in DIN EN ISO 4753 at the manufacturers discretion. 5 DIN 608:2010-09 Table 1 Dimensions Dimensions in millimetresThread size d M10 M12 Pa1,5 1,75 b 26 30 max. 19,65 24,65 dkmin. 18,35 23,35 max. 10 12 dsbmin. 9,42 11,30 max. 8,45 11,05 fnmin. 7,55 9,95 rcmax. 1,5 1,8 max. 10,58 12,
15、70 v min. 9,42 11,30 l lsand lglslglslgNominal size min. max. min. max. min. max. 25 23,95 26,05 16 30 28,95 31,05 16 20 35 33,75 36,25 16 20 40 38,75 41,25 16 20 45 43,75 46,25 11,5 19 20 50 48,75 51,25 16,5 24 20 Lengths exceeding 50 mm shall be graded in 10 mm increments. Intermediate lengths sho
16、uld be avoided if possible. aP = pitch of thread bFor reasons pertaining to the manufacturing process, the +IT15 tolerance is permitted for the unthreaded shank (including square). Therefore, the corresponding limiting dimension is given for vmax. cRadius r shall be adhered to for a minimum length o
17、f 0,5 fnbelow the head. 6 DIN 608:2010-09 4 Technical delivery conditions Table 2 Technical delivery conditions Material Steel General requirements DIN ISO 8992 Tolerance class 8 g Thread Standard DIN ISO 724, DIN ISO 965-1 Property classa 4.6 4.8 8.8 Mechanical properties Standard DIN EN ISO 898-1
18、Product grade C Limit deviations and geometrical tolerances Standard DIN EN ISO 4759-1 Surface finish DIN EN 26157-1 applies with regard to limits for surface discontinuities, DIN EN ISO 4042 applies with regard to electroplating, DIN EN ISO 10684 applies with regard to hot dip galvanizing, DIN EN I
19、SO 10683 applies with regard to zinc flake coatings. Acceptance inspection DIN EN ISO 3269 applies with regard to acceptance inspection. aOther property classes according to DIN EN ISO 898-1 for steel or according to DIN EN ISO 3506-1 for stainless steel shall be subject to agreement. 5 Masses The v
20、alues of mass given in Table 3 are reference values. Table 3 Masses Dimensions in millimetresThread size d M10 M12 Length l Mass (7,85 kg/dm3) kg/1 000 units 25 18,2 30 20,7 33,0 35 23,2 36,6 40 25,7 40,2 45 28,8 43,8 50 31,9 48,2 7 DIN 608:2010-09 6 Designation Designation of a flat countersunk hea
21、d square neck bolt with short square of thread size d = M10, with a length l = 50 mm, of property class 4.6: Flat countersunk head bolt DIN 608 M10 50 4.6 If it is intended to supply flat countersunk head bolts of property class 4.6 with hexagon nuts of property class 4 as in DIN EN ISO 4034 or flat
22、 countersunk head bolts of property class 8.8 with hexagon nuts of property class 8 as in DIN EN ISO 4032, the symbol “Mu” shall be added to the designation, e.g.: Flat countersunk head bolt DIN 608 M10 50 4.6 Mu See DIN 962, as far as applicable to flat countersunk head bolts, for supplementary order designations for special bolt types and finishes. 8 DIN 608:2010-09 9 Bibliography DIN ISO 1891, Fasteners Terminology
