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    DIN EN 1667-1998 Prevailing torque type all hexagon nuts with flange with metric fine pitch thread (ISO 12126 1997 modified) German version EN 1667 1997《米制小螺距螺纹的带法兰的经常作用的扭矩型全六角头螺母》.pdf

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    DIN EN 1667-1998 Prevailing torque type all hexagon nuts with flange with metric fine pitch thread (ISO 12126 1997 modified) German version EN 1667 1997《米制小螺距螺纹的带法兰的经常作用的扭矩型全六角头螺母》.pdf

    1、DEUTSCHE NORM Februarv 1998 DIN EN 1667 Prevailing torque type all-metal hexagon nuts with flange, with metric fine pitch thread (IS0 121 26 : 1997, modified) English version of DIN EN 1667 ICs 21.060.20 This standard, together Descriptors: Fasteners, hexagon nuts, properties. Sechskantmuttern mit K

    2、lemmteil und Flansch - Ganzmetallmuttern mit metrischem Feingewinde (IS0 121 26 : 1997, modifiziert) with DIN EN 1664, February 1998 edition, supersedes DIN 6927, November 1983 edition. European Standard EN 1667 : 1997 has the status of a DIN Standard. A comma is used as the decimal marker. National

    3、 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 Committee). It should be noted that, as a departure from IS0 121 26, the width across flats for thread size M1 O

    4、 specified in this European Standard is 16 mm instead of 15 mm. The DIN Standards corresponding to the EuropeanAnternational Standards referred to in clause 2 of the EN are as follows: EN IS0 2320 IS0 3269 DIN IS0 3269 IS0 8992 DIN IS0 8992 The DIN 4000-2-7 tabular layout of article characteristics

    5、shall apply to the nuts covered in this standard. DIN EN IS0 2320 Amendments DIN 6927, November 1983 edition, has been superseded by the specifications of EN 1667 Previous edition DIN 6927: 1983-1 1. National Annex NA Standards referred to (and not included in Normative references) DIN 4000-2 Tabula

    6、r layouts of article characteristics for bolts, screws and nuts DIN EN IS0 2320 Prevailing torque type steel hexagon nuts - Mechanical and performance properties (IS0 2320 : 1997) EN comprises 7 pages. No pari of this standard may be reproduced without the prior permission of Ref. No. DIN EN 1667: 1

    7、998-0 V Deutsches Institut fr Nonung 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 1667 December 1997 ICs 21.060.20 Descriptors: F

    8、asteners, hexagon nuts, properties. English version Prevailing torque type all-metal hexagon nuts with flange, with metric fine pitch thread (IS0 121 26 : 1997, modified) Ecrous hexagonaux embase, autofreins, tout mtal, filetage mtrique pas fin (IS0 121 26 : 1997, mod if i e) Sechskantmuttern mit Kl

    9、emmteil und Flansch - Ganzmetallmuttern mit metrischem Feingewinde (IS0 121 26 : 1997, modifiziert) This European Standard was 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

    10、 status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national 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

    11、). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified 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,

    12、Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, and the United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart

    13、36, 8-1050 Brussels O 1997. CEN - All rights of exploitation in any form and by any means reserved worldwide for CEN national members. Ref. No. EN 1667 : 1997 E Page 2 EN 1667 : 1997 Foreword This European Standard has been prepared by Technical Committee CEN/TC 185 “Threaded and non-threaded mechan

    14、ical fasteners and accessories“, the secretariat 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 June 1998, and conflicting national standards shall be withdrawn at the la

    15、test by June 1998. According to the CENKENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Nether

    16、lands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of the International Standard IS0 121 26: 1997 was approved by CEN as a European Standard with agreed common modifications given as below. The dimensions of nuts correspond to those given in EN 16

    17、61 plus prevailing torque feature. Nuts according to this European Standard corresponds to those specified in the International Standard IS0 121 26 with the exception that the width across flats for MI O is 16 mm (instead of 15 mm). Page 3 EN 1667 : 1997 1 Scope This European Standard specifies the

    18、characteristics of prevailing torque type all metal hexagon nuts with flange and metric fine pitch thread with nominal thread diameters d from 8 mrn up to and including 20 mm, in product grade A for sizes d up to and including 16 mm and product grade B for sizes d 16 rnm and with property classes 6,

    19、 8 and 10. 2 Normative 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 t

    20、o 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 the publication referred to applies. EN 493 Fasteners - Surface discontinuities - Nuts prEN IS0 2320 Prevailing torque type

    21、steel hexagon nuts - Mechanical and performance properties (ISO/DIS 2320 : 1994) prEN IS0 4042 Fasteners - Electroplated coatings (ISOIDIS 4042 : 1996) prEN IS0 4759-1 Tolerances for fasteners - Part 1: Bolts, screws, studs and nuts - Product grades A, B and C (ISO/DIS 4759-1 : 1997) IS0 724 IS0 gen

    22、eral purpose metric screw threads - Basic dimensions 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 3269 Fasteners - Acceptance inspection IS0 8992 Fasteners - General requirements for bolts, scr

    23、ews, studs and nuts Page 4 EN 1667 : 1997 3 Dimensions Dimensions shall be in accordance with figure 1 and table 1. NOTE 1: Symbols and designations of dimensions are specified in EN 20225. x 1) Prevailing torque element, shape optional. 2) m, is the wrenching height; see note to table 1 4) 6 = 15“

    24、to 25 5) c is measured at d,. 6) Edge contour optional. 3) e = 90“ to 1200 Figure 1 Page 5 EN 1667 : 1997 Table 1 Dimensions in millimetres Thread, d x P2) I (M141,5) MlOxl MI0 x 1.25 MI2 x 1.25 M8x1 I M16x1.5 M20x1,5 Y& C min. I I I 16,O I 20,O 8,OO I 10,O I 12 I 14,O min. max. da 8,75 I 10.8 I 13

    25、I 15.1 I I I 17,9 21.8 26 29,9 d, min. 31.9 I 39,9 dw min. 15,8 19,6 238 27,6 14,38 17,77 20,03 23,36 e min. 26,75 I 32,95 min. max. h 9,40 I 11,40 I 13,80 I 15,9 18,3 I 22,4 17,2 I 20,3 m min. 15,3 18,7 8,9 10,7 mw min. 24,OO 30,OO + 23,67 29,16 13,OO 16.00 18,OO 21,oo 12,73 15,73 17,73 20,67 max.

    26、min. S 0.48 I 0,6 I 0,72 I 0.88 0,96 I 1,2 ?) max. 1 The size in brackets should be avoided if possible. ) P is the pitch of the thread. 3, Radius r applies both at the corners and the flats of the hexagon. NOTE: If the product passes the gauging given in Annex A, the requirements for dimensions e,

    27、c and m, are satisfied. Page 6 EN 1667 : 1997 General requirements International Standard Tolerance Thread International Standards Property class Mechanical and performance properties mechanical properties) Style decisive for European Standard 4 Requirements and reference European or International S

    28、tandards IS0 8992 6H IS0 724, IS0 965-2 6 8 10 d 16mm style 1 style 2 style 1 style 2 prEN IS0 2320 The requirements given in table 2 apply. European Standard If, in special cases, specifications other than those listed in this European Standard are required, they shall be selected, from existing Eu

    29、ropean or International Standards, for example IS0 724, IS0 965-2, prEN IS0 2320, prEN IS0 4759-1. prEN IS0 4759-1 As processed Requirements for electroplated coatings are covered in prEN IS0 4042. Table 2 Acceptability Material For acceptance inspection IS0 3269 applies. 1- Steel Product grade Tole

    30、rances Fords 16mm:A Ford 16mm: B Finish 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 493. 5 Designation EXAMPLE: Designation of a pr

    31、evailing torque type hexagon all-metal nut with flange, with thread M12 x 1.5 and property class 8: Hexagon nut EN 1667 - M12x1.5 - 8 Page 7 EN 1667 : 1997 Gauge B Gauge C W, Tb W, T, max. min. min. min. max. min. 14,37 14,36 4 20 1.31 1.30 17.76 17,75 5 24 1,65 1,64 20.02 20.01 5 29 2,20 2,19 23,35

    32、 23.34 6 32,5 2,55 2,54 26.74 26.73 6 37 2.96 2,95 32,94 32.93 6 45 3,70 3.69 Annex A (normative) Nominal thread diameter d 8 10 12 14 16 1 20 Gauging of hexagon nuts with flange w, max. min. 15,02 15.01 18,49 18,48 20,79 20,78 24,26 24,25 27,72 27,71 34,65 34.64 A.l Recommended method for gauging o

    33、f hexagon (see figure A.l and table A.l) 1, max. min. 4,60 4,59 5,90 5,89 6,80 6,79 7,70 7,69 8,90 8,89 10,70 10.69 The nut shall be gauged using two plain ring gauges, A and B, to demonstrate the coincidental acceptability of hexagon height, wrenching height, corner fill and width across corners. G

    34、auge A shall be placed over the hexagon and shall be seated on the flange. Gauge B shall be placed on the top of the nut normal to the nut axis. The two gauges shall not be in contact. A.2 Recommended method for gauging of flange (see figure A. 1 and table A. 1) Gauge C is a flat feeler or ring gaug

    35、e. It is used to prove that the flange thickness at the junction of the gauge with the hexagon portion is equal to or greater than specified values. The acceptance criterion is that gauge C will fit under gauge A without contact when the nut is seated on a flat plate. 1 1 Gauge A 2 Gauge B 3 Gauge C Figure A.l Table A.l Gauge A


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