1、November 2011 Translation by DIN-Sprachendienst.English price group 9No 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!$v-7“1831020www.din.deDDIN EN ISO 7380-2Button head screws Part 2: Hexagon socket button head screws with collar(ISO 7380-2:2011)English translation of DIN EN ISO 7380-2:2011-11Schrauben mit abgeflachtem Halbrundkopf Teil 2: Schrauben mit abgeflachtem Halbrundkopf mit Innensechskant und
3、Bund(ISO 7380-2:2011)Englische bersetzung von DIN EN ISO 7380-2:2011-11Vis tte cylindrique bombe plate Partie 2: Vis tte cylindrique bombe plate six pans creux embase plate(ISO 7380-2:2011)Traduction anglaise de DIN EN ISO 7380-2:2011-11www.beuth.deIn case of doubt, the German-language original shal
4、l be considered authoritative.Document comprises 14 pages11.11 DIN EN ISO 7380-2:2011-11 2 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee ISO/TC 2 “Fasteners” in collaboration with Technical Committee CEN/TC 185 “Fasteners” (both secre
5、tariats are held by DIN, Germany). The responsible German body involved in its preparation was the Normenausschuss Mechanische Verbindungselemente (Fasteners Standards Committee), Working Committee NA 067-00-02 AA Verbindungs-elemente mit metrischem Auengewinde. The DIN Standards corresponding to th
6、e International Standards referred to in Clause 2 of this document are as follows: ISO 225 DIN EN ISO 225 ISO 261 DIN ISO 261 ISO 898-1 DIN EN ISO 898-1 ISO 965-2 DIN ISO 965-2 ISO 965-3 DIN ISO 965-3 ISO 3269 DIN EN ISO 3269 ISO 4042 DIN EN ISO 4042 ISO 4753 DIN EN ISO 4753 ISO 4759-1 DIN EN ISO 47
7、59-1 ISO 6157-1 DIN EN 26157-1 ISO 8992 DIN ISO 8992 ISO 10683 DIN EN ISO 10683 ISO 23429 DIN EN ISO 23429 ISO 7380 consists of the following parts, under the general title Button head screws: Part 1: Hexagon socket button head screws Part 2: Hexagon socket button head screws with collar National An
8、nex NA (informative) Bibliography 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 dimensions DIN EN ISO 898-1, Mechanical properties of fasteners made of carb
9、on 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 7380-2:2011-11 3 DIN EN ISO 4042, Fasteners Electroplated coatings DIN EN ISO 4753, Fasteners Ends of parts with ex
10、ternal 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 10683, Fasteners Non-electrolytically applied zinc flake coatings DIN EN ISO 23429, Gauging of hexagon sockets DIN ISO 261, ISO general purpose metric screw
11、 threads General plan DIN ISO 965-2, ISO general purpose metric screw threads Tolerances Part 2: Limits of sizes for general purpose external and internal screw threads Medium quality DIN ISO 965-3, ISO general purpose metric screw threads Tolerances Part 3: Deviations for constructional threads DIN
12、 ISO 8992, Fasteners General requirements for bolts, screws, studs and nuts DIN EN ISO 7380-2:2011-11 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 7380-2 August 2011 ICS 21.060.10 English Version Button head screws - Part 2: Hexagon socket button head s
13、crews with collar (ISO 7380-2:2011) Vis tte cylindrique bombe plate - Partie 2: Vis tte cylindrique bombe plate six pans creux embase plate (ISO 7380-2:2011) Schrauben mit abgeflachtem Halbrundkopf - Teil 2: Schrauben mit abgeflachtem Halbrundkopf mit Innensechskant und Bund (ISO 7380-2:2011) This E
14、uropean Standard was approved by CEN on 22 July 2011. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references c
15、oncerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member
16、 into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, I
17、reland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marni
18、x 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 7380-2:2011: ESupersedes EN ISO 7380:2004EN ISO 7380-2:2011 (E) 2 Contents PageForeword31 Scope 42 Normative references 43 Dimensions.54 Requirements an
19、d reference International Standards.85 Designation 9Bibliography 10DIN EN ISO 7380-2:2011-11 EN ISO 7380-2:2011 (E) 3 Foreword This document (EN ISO 7380-2:2011) has been prepared by Technical Committee ISO/TC 2 “Fasteners” in collaboration with Technical Committee CEN/TC 185 “Fasteners” the secreta
20、riat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by February 2012, and conflicting national standards shall be withdrawn at the latest by February 2012. Attention is draw
21、n to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document, together with EN ISO 7380-1:2011, supersedes EN ISO 7380:2004. According to the CEN/CENE
22、LEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuani
23、a, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 7380-2:2011 has been approved by CEN as a EN ISO 7380-2:2011 without any modification. DIN EN ISO 7380-2:2011-11 EN ISO 7380
24、-2:2011 (E) 4 1 Scope This International Standard specifies the characteristics of hexagon socket button head screws with collar with threads from M3 up to and including M16, with product grade A and with reduced loadability according to Table 3. If, in special cases, specifications other than those
25、 listed in this International Standard are required, they can be selected from existing International Standards, e.g. ISO 261, ISO 888, ISO 898-1, ISO 965-2 and ISO 4759-1. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated ref
26、erences, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 225, Fasteners Bolts, screws, studs and nuts Symbols and descriptions of dimensions ISO 261, ISO general purpose metric screw threads General plan IS
27、O 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 ISO 965-2, ISO general purpose metric screw threads Tolerances Part 2: Limits of sizes for general purpose external and
28、 internal screw threads Medium quality ISO 965-3, ISO general purpose metric screw threads Tolerances Part 3: Deviations for constructional screw threads ISO 3269, Fasteners Acceptance inspection ISO 4042, Fasteners Electroplated coatings ISO 4753, Fasteners Ends of parts with external ISO metric th
29、read ISO 4759-1, Tolerances for fasteners Part 1: Bolts, screws, studs and nuts Product grades A, B and C ISO 6157-1, Fasteners Surface discontinuities Part 1: Bolts, screws and studs for general requirements ISO 8992, Fasteners General requirements for bolts, screws, studs and nuts ISO 10683, Faste
30、ners Non-electrolytically applied zinc flake coatings DIN EN ISO 7380-2:2011-11 EN ISO 7380-2:2011 (E) 5 ISO 23429, Gauging of hexagon sockets 3 Dimensions See Figure 1 and Table 1. Symbols and descriptions of dimensions are specified in ISO 225. Key rsunderhead radius for a screw with unthreaded sh
31、ank rtunderhead radius for a fully threaded screw adsapplies if values of ls,minare specified. bContour at the discretion of the manufacturer. cIn accordance with ISO 4753, point chamfered or for sizes M4 “as rolled”. dIncomplete thread u 2P. eA slight rounding or countersink at the mouth of the soc
32、ket is permissible. fFor broached sockets which are at the maximum limit of size, the overcut resulting from drilling shall not exceed one third of the length of any flat of the socket which is e/2. gPermissible alternative form of socket. Figure 1 Hexagon socket button head screw with collar DIN EN
33、 ISO 7380-2:2011-11 EN ISO 7380-2:2011 (E) 6 Table 1 Dimensions of hexagon socket button head screws with collar Dimensions in millimetres Thread, d M3 M4 M5 M6 M8 M10 M12 M16 Pa 0,5 0,7 0,8 1 1,25 1,5 1,75 2 bb ref. 18 20 22 24 28 32 36 44 max. 0,7 0,8 1,0 1,2 1,5 2,0 2,4 2,8 c min. 0,55 0,65 0,80
34、1,00 1,25 1,70 2,10 2,50 damax. 3,6 4,7 5,7 6,8 9,2 11,2 13,7 17,7 max. 6,9 9,4 11,8 13,6 17,8 21,9 26,0 34,0 dcmin. 6,32 8,82 11,10 12,90 17,10 21,06 25,16 33,00 max. 5,2 7,2 8,8 10,0 13,2 16,5 19,4 26,0 dkmin. 4,9 6,8 8,4 9,6 12,8 16,1 18,9 25,5 dLref. 2,6 3,8 5,0 6,0 7,7 10,0 12,0 16,0 max. 3 4 5
35、 6 8 10 12 16 dsmin. 2,86 3,82 4,82 5,82 7,78 9,78 11,73 15,73 dwmin. 5,74 8,24 10,40 12,20 16,40 20,22 24,32 32,00 ec d min. 2,303 2,873 3,443 4,583 5,723 6,863 9,149 11,429 max. 1,65 2,20 2,75 3,30 4,40 5,50 6,60 8,80 k min. 1,40 1,95 2,50 3,00 4,10 5,20 6,24 8,44 max. 3,70 4,60 5,75 6,15 7,95 9,8
36、0 11,20 15,30 rfmin. 3,30 4,20 5,25 5,65 7,45 9,20 10,50 14,50 rsmin. 0,10 0,20 0,20 0,25 0,40 0,40 0,60 0,60 rtmin. 0,30 0,40 0,45 0,50 0,70 0,70 1,10 1,10 nom. 2 2,5 3 4 5 6 8 10 max. 2,080 2,580 3,080 4,095 5,140 6,140 8,175 10,175 sd min. 2,020 2,520 3,020 4,020 5,020 6,020 8,025 10,025 t min. 1
37、,04 1,30 1,56 2,08 2,60 3,12 4,16 5,20 w min. 0,20 0,30 0,38 0,74 1,05 1,45 1,63 2,25 DIN EN ISO 7380-2:2011-11 EN ISO 7380-2:2011 (E) 7 Table 1 (continued) Dimensions in millimetres Thread, d M3 M4 M5 M6 M8 M10 M12 M16 le lsand lgflslglslglslglslglslglslglslglslgnom. min. max. min. max. min. max. m
38、in. max. min. max. min. max. min. max. min. max. min. max.6 5,76 6,24 8 7,71 8,29 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 4,5 7 30 29,58 30,42 9,5 12 6,5 10 4 8 35 34,5 35,5 11,5 15 9 13 6 11 40 39,5 40,5 16,5 20 14 18 11 16 5,75 12 45 44,5 45,5 19 23 16 21 10,75 17
39、 5,5 13 50 49,5 50,5 24 28 21 26 15,75 22 10,5 18 55 54,4 55,6 26 31 20,75 27 15,5 23 10,25 19 60 59,4 60,6 31 36 25,75 32 20,5 28 15,25 24 65 64,4 65,6 30,75 37 25,5 33 20,25 29 11 21 70 69,4 70,6 35,75 42 30,5 38 25,25 34 16 26 80 79,4 80,6 45,75 52 40,5 48 35,25 44 26 36 90 89,4 90,6 50,5 58 45,2
40、5 54 36 46 aP is the pitch of the thread. bFor lengths between the bold, stepped lines in the unshaded area. cemin= 1,14 smin. dCombined gauging of socket dimensions e and s, as specified in ISO 23429. eThe range of preferred lengths is between the bold stepped lines. fLengths in the shaded area are
41、 threaded to the head within 3P. Lengths below the shaded area have values of lgand lsin accordance with the following equations: lg,max = lnom b ls,min = lg,max 5P. DIN EN ISO 7380-2:2011-11 EN ISO 7380-2:2011 (E) 8 4 Requirements and reference International Standards See Tables 2 and 3. Table 2 Re
42、quirements and reference International Standards Material Steel General requirements International Standard ISO 8992 Tolerance class 6g Thread International Standard ISO 261, ISO 965-2, ISO 965-3 Property class8.8, 10.9 Marking symbol 08.8, 010.9 Mechanical property International Standard ISO 898-1a
43、Product grade A Tolerance International Standard ISO 4759-1 Finish Coating As processed. Requirements for electroplating are specified in ISO 4042. Requirements for non-electrolytically applied zinc flake coatings are specified in ISO 10683. Additional requirements or other finishes or coatings shal
44、l be agreed between the supplier and the purchaser. Surface integrity Limits for surface discontinuities are specified in ISO 6157-1. Acceptability The acceptance inspection is specified in ISO 3269. aBecause of their head configurations, it is possible for these screws to not meet the minimum ultim
45、ate tensile loads specified in ISO 898-1. They shall nevertheless meet the other material and property requirements for the respective property class specified in ISO 898-1. In addition, when full-size screws are tensile tested in accordance with ISO 898-1, they shall withstand, without fracture, th
46、e minimum ultimate tensile loads given in Table 3. If tested to failure, the fracture may occur in the threaded section, the head, the shank or at the head/shank junction. Table 3 Reduced minimum ultimate tensile loads for hexagon socket button head screws with collar Property class 8.8a10.9aThread,
47、 d Reduced minimum ultimate tensile loadN M3 3 220 4 180 M4 5 620 7 300 M5 9 080 11 800 M6 12 900 16 700 M8 23 400 30 500 M10 37 100 48 200 M12 53 900 70 200 M16 100 000 130 000 a80 % of the values for Fm,min specified in ISO 898-1. DIN EN ISO 7380-2:2011-11 EN ISO 7380-2:2011 (E) 9 5 Designation Th
48、e designation and marking requirements for steel fasteners with reduced loadability shall apply as specified in ISO 898-1. EXAMPLE A hexagon socket button head screw with collar, thread M12, of nominal length l = 40 mm and property class 10.9 in accordance with ISO 898-1, is designated as follows: Hexagon socket button head screw ISO 7380-2 - M12 40 - 010.9 DIN EN ISO 7380-2:2011-11 EN ISO 7380-2:2011 (E) 10 Bibliography 1 ISO 888, Bolts, screws and studs Nominal lengths, and thread lengths for general purpose bolts DIN EN ISO 7380-2:2011-11
