1、DEUTSCHE NORM November 1998 I Hexagon bolts with flange - Heavy series - I ENI665 English version of DIN EN 1665 I ICs 21.060.1 O Sechskantschrauben mit Flansch - Schwere Reihe Supersedes February 1998 edition. European Standard EN 1665 : 1997 has the status of a DIN Standard. A comma is used as the
2、 decimal marker. National foreword This standard has been prepared by CEN/TC 185 Threaded and non-threaded mechanical fasteners and accessories. The responsible German body involved in its preparation was the Normenausschuss Mechanische Verbindungselemente (Fasteners Standards Committee). It should
3、be noted that, as a departure from current practice in International Standards, the width across flats for thread size M1 O specified in this European Standard is 16 mm instead of 15 mm (cf. IS0 41 61 and IS0 41 62). DIN IS0 3269 and DIN IS0 8992 are the standards corresponding to International Stan
4、dards IS0 3269 and IS0 8992, respectively, referred to in clause 2 of the EN. Amendments This standard differs from the February 1998 edition in that table 1 in the German-language version has been corrected. Previous editions DIN 6921: 1983-06; DIN 6922: 1983-06; DIN EN 1665: 1998-02. EN comprises
5、8 pages. No pari of this standard may be reproduced without the prior permission of Y Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany, s the exclusive right of sale for German Standards (DIN-Normen). Ref. No. DIN EN 1665 : 1998-1 English price group 08 Sales No.
6、 1108 08.01 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1665 May 1997 ICs 21.060.1 O English version Hexagon bolts with flange - Heavy series Vis tte hexagonale embase cylindro-tronconique - srie large Sechskantschrauben mit Flansch - Schwere Reihe This European Standard was approved by CEN
7、 on 1997-04-03. CEN members are bound to comply with the CENKENELEC 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 concerning such national stand- ards may
8、 be obtained on application to the Central Secretariat or to any CEN member. The European Standards exist in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Centr
9、al Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, the Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, and the U
10、nited Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels O 1997. CEN - All rights of exploitation in any form and by any means reserved worldwide for CEN national members. Ref. No.
11、 EN 1665: 1997 E Page 2 EN 1665 : 1997 Foreword This European Standard has been prepared by Technical Committee CENITC 185 “Threaded and non-threaded mechanical fasteners and accessories“, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standar
12、d, either by publication of an identical text or by endorsement, at the latest by November 1997, and conflicting national standards shall be withdrawn at the latest by November 1997. According to the CENICENELEC Internal Regulations, the national standards organizations of the following countries ar
13、e bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. 1 Scope This European Standard specifies characteristics of
14、 hexagon bolts with flange, heavy series, with threads from M5 up to and including M20 and with property classes 8.8, 10.9 and A2-70. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at
15、the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of t
16、he publication referred to applies. EN 261 57-3 Fasteners - Surface discontinuities - Part 3: Bolts, screws and studs for special requirments (IS0 61 57-3 : 1988) prEN IS0 898-1 Mechanical properties of fasteners - Part 1 : Bolts, screws and studs (ISO/DIS 898-1 : 1996) prEN IS0 3506-1 Mechanical pr
17、operties of corrssion-resistant stainless-steel fasteners - Part 1 : Bolts, screws and studs (ISOIDIS 3506-1 : 1995) prEN IS0 4042 Fasteners - Electroplated coatings (ISOIDIS 4042 : 1996) prEN IS0 4753 Fasteners - Ends of parts with external metric IS0 thread (ISOIDIS 4753 : 1997) prEN IS0 4759-1 To
18、lerances for fasteners - Part 1: Bolts, screws, studs and nuts - Product grades A, B and C (ISOIDIS 4759-1 : 1997) IS0 724 IS0 general purpose metric screw threads - Basic dimensions IS0 888 Bolts, screw and studs - Nominal lengths, and thread lengths for general purpose bolts IS0 965-2 IC0 general
19、purpose metric screw threads - Tolerances - Part 2: Limits of sizes for general purpose bolt and nut threads - Medium quality IS0 3269 Fasteners - Acceptance inspection IS0 8992 Fasteners - General requirements for bolts, screws, studs and nuts Page 3 EN 1665: 1997 3 Dimensions Dimensions shall be i
20、n accordance with figures 1 to 3 and table 1. NOTE: Symbols and designations of dimensions are specified in EN 20225. 11 1) The top of the head shall be either full form or indented at the manufacturers option and shall be either chamfered or rounded. The minimum diameter of the chamfer circle or st
21、art of rounding shall be the maximum width across flats minus 15 %. If the top of the head is indented, the periphery may be rounded. 2) Chamfered end (see prEN IS0 4753). 3) Edge contour optional. 4) = 15 to 30 5) k, is the wrenching height; see the note to table 1. 6) Incomplete thread U s 2 P. Fi
22、gure 1 : Hexagon bolt with flange - Full shank (standard type) *l OSd O other dimensions, see figure 1 1) Rounded or chamfered or conical. 2) d, is approximately equal to the pitch diameter (rolling diameter). Figure 2: Hexagon bolt with flange - Reduced shank, type R (upon request) Page 4 EN 1665 :
23、 1997 0.7 5 O 2 0.5 O 31 Type F, without undercut (standard type) Type U, with undercut (upon request or optional 1) c is measured at d, min. 2) 6 = 15O to 25 3) Maximum and minimum underi iead fillet. 4) Junction of fillet with bearing surface to be a smooth blend. Figure 3: Hexagon bolt with flang
24、e - Underhead configuration (bearing area) Page 5 EN 1665 : 1997 Table 1 Dimensions in millirnetres Thread (d) b ref. 28 32 C F 5,7 6.8 9,2 11,2 U 6.2 7,5 10,o 12.5 if, Types - max. if, max. 188 14,2 18 22.3 max. 5,” 6,OO 8,OO 10,oo I I I I if, max. 5.5 6.6 8,8 10.8 dw min. 9, 12,2 15,8 19.6 e 10,95
25、 14,26 17,62 8171 k max. 518 6.6 8,l 10,4 min. max. 0125 0.26 0,36 0,45 3 min. 0,” 0.1 1 0,16 0.20 I l I I r4 ref. 4 5.7 1 5,7 max, I 8,OO 1 10,OO I 13,OO I 16,OO s I min. 7178 9,78 12,73 15,73 min. 0.05 0,05 0,lO 0,15 max. 0.15 0.20 0,25 0.30 V (continuedJ I I i 1,75 2 2 I 2-5 I I i 30 I 34 I 38 I
26、46 36 40 44 52 57 65 - - 1,8 2,l 2,4 3 13.7 15,7 17.7 22,4 15,2 I 17,7 1 20.5 I 25,7 I 26,6 30,5 35 43 12,oo 14.00 16,00 20.00 12,8 14,8 17.2 21,6 23,8 27,6 31,9 39,9 19,86 23,15 26,51 33.23 11,s 13,7 15,4 18.9 0.7 0,g 1 1.2 0,54 0,63 0,72 0,g 0,24 0,28 0.32 0,4 5,7 5.7 8,5 11,4 18.00 21 ,o0 24,00 3
27、0,00 17,73 23.67 29.67 Page 6 EN 1665 : 1997 Thread dl M5 M6 M8 MIO MI2 (M14) Table 1 (concluded) MI6 M20 1, nax. - 14 19 24 29 34 39 44 54 64 74 - 1, and 1, 4 Ig min. rnax. I 6,25 15 11,25 20 16,25 25 21,25 30 26,25 35 31.25 40 41,25 50 51,25 60 61,25 70 71,25 80 81.25 90 - - - - - - - -. i7i. 8i 1
28、, max. 4 max. 4 min. - 13 18 23 28 33 38 - - - 6,5 11,5 16,5 21.5 26.5 -_ - 35 I 34.5 I 35.5 I 15 q2q-q 30 60 59,4 60.6 43 48 58 31,5 36,5 46,5 80 79.4 90 89.3 56,5 66,5 - 1 O0 99,3 100,7 I 110 120 - 109,3 119,3 120,7 130 140 - 129,2 139,2 130,8 ) The size in parentheses should be avoided if possibl
29、e. *) P is the pitch of the thread. 3, For lengths I, 5 125 mm. 4, For lengths 125 mm 200 mm. 6, Radius r2 applies both at the corners and at the flats of the hexagon. ) Screws with lengths shown above the continous thick line are threaded to head. ) Reduced shank type (type R) only below the dashed
30、 line. 9, Lg is the minimum grip length. NOTE: If the product passes the gauging in annex A, the requirements for dimensions e and k, are satisfied Page 7 EN 1665 : 1997 Steel 4 Requirements and reference European or International Standards Stainless steel The requirements given in table 2 apply. 8.
31、8, 10.9 If, in special cases, specifications other than those listed in this European Standard are required, they shall be selected, from existing European or International Standards, for example IS0 724, IS0 888, prEN IS0 898-1, IS0 965-2, prEN IS0 3506-1. A2-70 Table 2 Material General requirments
32、 International Standard Tolerance International Standards Property class European Standards Thread Mechanical properties Tolerances Product grade European Standard Finish Acceptability prEN IS0 898-1 I prEN IS0 3506-1 A prEN IS0 4759-1 Black oxide (thermic or chemical) Plain Requirements for electro
33、- plating are covered in prEN IS0 4042. If different electroplating requirements are desired or if requirements are needed for other finishes, they should be negotiated between customer and supplier. Limits for surface discontinuities are covered in EN 26157-3. For acceptance inspection IS0 3269 app
34、lies. 5 Designation EXAMPLE 1: Designation of a hexagon bolt with flange, heavy series, with thread M12, nominal length I = 80 mm, type F or U at the option of the manufacturer, and property class 8.8: Hexagon bolt EN 1665 - MI2 x 80 - 8.8 EXAMPLE 2: Designation of a hexagon bolt with flange, heavy
35、series, with thread M12, nominal length I = 80 mm, type F, and property class 8.8: Hexagon bolt EN 1665 - M12x80 - F - 8.8 If, in special cases, a hexagon bolt with flange, heavy series, with reduced shank is required, the letter R shall be included in the designation. EXAMPLE 3: Designation of a he
36、xagon bolt with flange, heavy series, with thread M12, nominal length I = 80 mm, type F or U at the option of the manufacturer, with reduced shank (R) and property class 8.8: Hexagon bolt EN 1665 - MI 2 x 80 - R - 8.8 Page 8 EN 1665 : 1997 MI 2 MI4 MI6 M20 Annex A (normative) 20,79 20,78 5,60 5,59 1
37、9,85 19,84 5 24,26 24,25 6,50 6,49 23,14 23,13 5 27,72 27,71 7,30 7,29 26,50 26,49 6 34,65 34,64 8,90 8,89 33,22 33,21 6 - Gauging of hexagon flange heads The head shall be gauged using two ring gauges, A and B, to demonstrate the coincidental acceptability of hexagon height, wrenching height, corne
38、r fill and width across corners. Gauge A shall be placed over the hexagon and shall seat on the flange. Gauge B shall be placed on the top of the head normal to the bolt axis. The two gauges shall not be in contact. 1 I I I 1 Y I 1 GaugeA 2 Gauge B - NOTE: Wa, min - etheoretical Wb, max = emi,-O,Ol mm - Ta, max - L, min Figure A.l
