1、DEUTSCHE NORM Februarv 1998 Hexagon bolts with flange - Small series English version of DIN EN 1662 (ISO/DIS 15071 : 1996, modified) DIN EN 1662 ICs 21.060.1 O Descriptors: Fasteners, hexagon bolts, properties. Sechskantschrauben mit Flansch - Leichte Reihe (ISO/DIS 15071 : 1996, modifiziert) Europe
2、an Standard EN 1662 : 1997 has the status of a DIN Standard. A comma is used as the decimal marker. National foreword This standard has been prepared by CEN/TC 185. The responsible German body involved in its preparation was the Normenausschu Mechanische Verbindungselemenfe (Fasteners Standards Comm
3、ittee). DIN IS0 3269 and DIN IS0 8992 are the DIN Standards corresponding to International Standards IS0 3269 and IS0 8992, respectively, referred to in clause 2 of the EN. The DIN 4000-2-7 tabular layout of article characteristics shall apply to the bolts covered in this standard. National Annex NA
4、 Standard referred to (and not included in Normative references) DIN 4000-2 Tabular layouts of article characteristics for bolts, screws and nuts EN comprises 9 pages. No pari of this standard may be reproduced without the prior permission of Ref. No. DIN EN 1662 : 1998-0 V Deutsches Institut fr Non
5、ung e. V., Berlin. Luth Verlag GmbH, D-10772 Berlin, has the exclusive right of sale for German Standards (DIN-Normen). English price group 07 Sales No . . 1107 07.98 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1662 December 1997 ICs 21.060.20 Descriptors: Fasteners, hexagon bolts, properti
6、es. English version Hexagon bolts with flange - Small series (ISO/DIS 15071 : 1996, modified) Vis tte hexagonale embase Sechskantschrauben mit Flansch - cylindro-tronconique - Srie troite Leichte Reihe (ISO/DIS 15071 : 1996, (ISO/DIS 15071 : 1996, modifie) mod if i z i e rt) This European Standard w
7、as approved by CEN on 1997-1 0-24. 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 natio
8、nal stand- ards may 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 no
9、tified to the Central 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, Swi
10、tzerland, and the United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, 8-1050 Brussels O 1997. CEN - All rights of exploitation in any form and by any means reserved worldwide for CEN nationa
11、l members. Ref. No. EN 1662 : 1997 E Page 2 EN 1662 : 1997 Foreword This European Standard has been prepared by Technical Committee CENTTC 185 “Threaded and non-threaded mechanical fasteners and accessories“, the secretariat of which is held by DIN. This European Standard shaH be given the status of
12、 a national standard, either by publication of an identical text or by endorsement, at the latest by June 1998, and conflicting national standards shall be withdrawn at the latest by June 1998. According to the CENICENELEC Internal Regulations, the national standards organizations of the following c
13、ountries are 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. Endorsement notice The text of the International
14、 Standard ISOIDIS 1507 1 : 1996 was approved by CEN as a European Standard with agreed common modifications given as below. Bolts according to this European Standard corresponds to those specified in the Draft International Standard ISO/DIS 15071 : 1996 with the exception that the width across flats
15、 for M12 is 16 mm (instead of 15 mm) and that the property class 9.8 was deleted. Page 3 EN 1662 : 1997 1 Scope This European Standard specifies the characteristics of hexagon flange bolts, small series, with threads from M5 up to and including M16 and with property classes 8.8, 10.9 and A2-70. 2 No
16、rmative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions
17、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 the publication referred to applies. EN 26 157-3 Fasteners - Surface discontinuities - Part 3: Bolts, screws and studs for specialrequirern
18、ents (IS0 61 57-3 : 1988). prEN IS0 898-1 Mechanical properties of fasteners - Part 1 : Bolts, screws and studs (ISOIDIS 898-1 : 1996). prEN IS0 3506-1 Mechanical properties of corrosion-resistant stainless-steel fasteners - Part 1 : Bolts, screws and studs (ISO/DIS 3506-1 : 1995) prEN IS0 4042 Fast
19、eners - Electroplated coatings (ISO/DIS 4042 : 1996) prEN IS0 4753 Fasteners - Ends of parts with external metric IS0 thread (ISOIDIS 4753 : 1997). prEN IS0 4759-1 Tolerances for fasteners - Part 1: Bolts, screws, studs and nuts - Product grades A, B and C (ISOIDIS 4759-1 : 1997). IS0 724 IS0 genera
20、l purpose metric screw threads - Basic dimensions. IS0 888 Bolts, screw and studs - Nominal lengths, and thread lengths for general purpose bolts. IS0 965-2 IS0 general purpose metric screw threads - Tolerances - Part 2: Limits of sizes for general purpose bolt and nut threads - Medium quality. IS0
21、3269 Fasteners - Acceptance inspection. IS0 8992 Fasteners - General requirements for bolts, screws, studs and nuts. Page 4 EN 1662 : 1997 3 Dimensions Dimensions shall be in accordance with figures 1 to 3 and table 1. NOTE: Symbols and designation of dimensions are specified in EN 20225. 1) The top
22、 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 start of rounding shall be the maximum width across flats minus 15 YO. If the top of the head is indented, the periphery may be round
23、ed. 2) Edge contour optional. 3) Chamfered end (see prEN IS0 4753). 4)p = 15to30 5) k, is the wrenching height; see the note to table 1. 6) incomplete thread u 5 2 P. Figure 1: Hexagon bolt with flange - Full shank (standard type) *1 0,Sd O other dimensions, see figure 1 1) Rounded or chamfered or c
24、onical. 2) d, is approximately equal to the pitch diameter (rolling diameter). Figure 2: Hexagon bolt with flange - Reduced shank, type R (upon request) Page 5 EN 1662 : 1997 Q?520,5 LI Type F without undercut (standard type) Type U with undercut (upon request or optional) 1) c is measured at d,. 2)
25、 6 = 15“ t025 3) Maximum and minimum underhead fillet. 4) Junction of fillet with bearing surface to be a smooth blend. Figure 3: Hexagon bolt with flange - Underhead configuration (bearing areal Page 6 EN 1662 : 1997 max min. d“ max d, min. e min. 4 Table 1 Dimensions in millirnetres 5,OO 6.00 8.00
26、 10.00 12.00 14,OO 4,82 5.82 7.78 9,78 11,73 13,73 5,5 6,6 8.8 10,8 12,8 14.8 9,4 11,6 14,9 18,7 22,5 26,4 7,59 8,71 10,95 14,26 17,62 19,86 max min. r3 M16 I 0,25 0,26 0,36 0,45 0,54 0,63 0,72 0,lO 0,ll 0,16 0,20 0,24 0,28 0,32 2 r4 ref. max S min max min. V 38 4 4,4 5,7 5,7 5,7 5.7 8,8 7,OO 8.00 1
27、0,oo 13,OO 16,OO 18.00 21 ,o0 6,78 7,78 9,78 12,73 15.73 17,73 20,67 0,15 0,20 0,25 0,30 0,35 0,45 0,50 0,05 0,05 0,l o 0,15 0,15 0,20 0,25 17,7 20,5 32,8 16,OO 15,73 17,2 30,6 23,15 15,2 6.8 Page 7 EN 1662 : 1997 Table 1 (concluded) Dimensions in millimetres 6 M8 4 1, max. I L. I rnax. - - - - - -
28、- 12 17 6,75 13 27 16.75 23 32 21.75 28 37 26.75 33 42 31.75 38 36,75 43 41,75 48 51,75 58 - - _- 22 ii575-17 - - - - - - 6.5 11.5 16.5 21.5 26,5 31,5 36,5 46.5 56,5 66,5 _-. - - - - - - 10 d 1, 4 - rnax. M12 I (M141) 1 M16 ) The size in parentheses should be avoided if possible. ) P is the pitch of
29、 the thread. 3, For lengths I, I 125 mm. 4, For lengths 125 rnrn 200 mm. 6, Radius r, 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 line. ) /, is the mini
30、mum grip length. NOTE: If the product passes the gauging in annex A, the requirements for dimensions e and k, are satisfied. Page 8 EN 1662 : 1997 8.8, 10.9 prEN IS0 898-1 4 Requirements and reference European or International Standards A2-70 prEN IS0 3506-1 The requirements given in table 2 apply.
31、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. Material General International Standard I requirem
32、ents Tolerance International Standards Thread Property class Mechanical properties European Standards Product grade European Standard Tolerances Table 2 Steel 1 I Stainless steel I IS0 8992 69 A prEN IS0 4759-1 Black oxide (thermic or chemical) Requirements for electroplating are covered in prEN IS0
33、 4042. Plain If different eletropiating requirements are desired or if require- ments are needed for other finishes, they should be negotiated between customer and supplier. Limits for surface discontinuities are covered in EN 26 157-3. I For acceptance inspection IS0 3269 applies. 1 5 Designation E
34、XAMPLE 1: Designation of a hexagon bolt with flange, small 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 1662 - M12x 80 - 8.8 EXAMPLE 2: Designation of a hexagon bolt with flange. small series, with thread M1
35、2, nominal length I = 80 rnm, type F, and property class 8.8: Hexagon bolt EN 1662 - MI 2 x 80 - F - 8.8 If, in special cases, a hexagon bolt with flange, small series, with reduced shank is required, the letter R shall be included in the designation. EXAMPLE 3: Designation of a hexagon bolt with fl
36、ange, small 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 1662 - M12 x 80 - R - 8.8 Page 9 EN 1662 : 1997 M14 M16 Annex A (normative) 20.79 20.78 5,60 5,59 19,85 19,84 5 24,26 24,25 6.
37、80 6,79 23.14 23,13 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, corner 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 Gauge A 2 Gauge B Figure A.l Table A.l
