1、ICS 21.060.20Sechskantmuttern 1,5 d hochIn keeping with current practice in standards published by the International Organization for Standardization(ISO), a comma has been used throughout as the decimal marker.Ref. No. DIN 6330 : 2003-04English price group 06 Sales No. 010612.03DEUTSCHE NORM April
2、20036330Continued on pages 2 to 3. No part of this translation may be reproduced without the 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).Hexagon nuts with a height of 1,5
3、 dTranslation by DIN-Sprachendienst.In case of doubt, the German-language original should be consulted as the authoritative text.SupersedesAugust 1991 edition.ForewordThis standard has been prepared by Technical Committee Bohrbuchsen, Spannzeuge und Vorrichtungen ofthe Normenausschuss Werkzeuge und
4、Spannzeuge (Tools and Clamping Devices Standards Committee).AmendmentsThis standard differs from the August 1991 edition as follows:a) General tolerances shall be those specified in ISO 2768-1.b) Some details in figure 1 have been changed.c) Marking details have been included.d) The standard has bee
5、n editorially revised.Previous editionsDIN 6330: 1941-01, 1943-10, 1962-07, 1962-09, 1965-03x, 1991-08.All dimensions are in millimetres.1 ScopeThis standard specifies requirements for hexagon nuts of height equal to 1,5 d, designed for use with boltsin assemblies that will be frequently disassemble
6、d and reassembled. These nuts are provided with a spheri-cal bearing face which, in conjunction with a 120 counterbore or a conical seat as specified in DIN 6319,permit any displacement of clamping elements to be compensated.2 Normative referencesThis standard incorporates, by dated or undated refer
7、ence, provisions from other publications. Thesenormative references are cited at the appropriate places in the text, and the titles of the publications arelisted below. For dated references, subsequent amendments to or revisions of any of these publicationsapply to this standard only when incorporat
8、ed in it by amendment or revision. For undated references, thelatest edition of the publication referred to applies.DIN 6319 Spherical washers and conical seatsDIN EN 20898-2 Mechanical properties of fasteners Part 2: Nuts with coarse pitch thread and speci-fied proof load values (ISO 898-2 : 1992)D
9、IN EN ISO 4759-1 Tolerances for fasteners Part 1: Bolts, screws, studs and nuts Product grades A,B and C (ISO 4759-1 : 2000)ISO 2768-1 : 1989 General tolerances Part 1: Tolerances for linear and angular dimensions withoutindividual tolerance indicationsPage 2DIN 6330 : 2003-043 Dimensions and design
10、ationNut dimensions shall be as given in figure 1 and table 1.Design details left unspecified shall be selected as appropriate.Figure 1: Dimensions of hexagon nut, type B (with one spherical bearing face)(notation)Designation of an M20 hexagon nut (M20) of type B (B), of property class 10 (10):Nut D
11、IN 6330 B M20 10Table 1: Nut dimensionsThread d1da1) emr12) sApprox. mass,size (d)h14 max. min. js15 Tolerancein kg,per 1 000 unitsM6 7 7 11,05 9 9 10 4M8 9 9 14,38 12 11 13 9M10 11,5 11 17,77 15 15 16 17M12 14 13 20,03 18 17 18h1324M16 18 17 26,75 24 22 24 57M20 22 21 33,53 30 27 30 107M24 26 25 39
12、,98 36 32 36 187M30 32 31 51,28 45 41 46 395M36 38 37 61,31 54 50 55 h14 679M42 44 43 72,61 63 58 65 1 140M48 52 50 83,91 72 67 75 1 7801) Nuts shall be countersunk on both sides at 120 down to diameter da.2) Subject to general tolerances as in ISO 2768-1, class m.4 MaterialNuts of sizes M6 to M36 s
13、hall be made of steel of property class 10 (recommended) or 8 as specified inDIN EN 20898-2.Nuts of sizes M42 and M48 shall have a hardness of (240 + 62) HV 30 (recommended) or (188 + 114) HV 30.5 DesignHexagon nuts shall be manufactured in product grade A as in DIN EN ISO 4759-1.Page 3DIN 6330 : 20
14、03-046 MarkingHexagon nuts shall be permanently and legibly marked with the DIN number and the manufacturers name orsymbol.Where the marking is not applied to the nut itself, the smallest, commercially available package shall be marked.7 AssemblyNuts as specified here may be used together with a con
15、ical seat (cf. figure 2), a workpiece with counterbore(cf. figure 3), or a flat bearing face (cf. figure 4).Key:1 Type G conical seat as in DIN 63192 WorkpieceFigure 2: Assembly with conical seat Figure 3: Assembly with counterboreFigure 4: Assembly with flat bearing face1) Counterbore as in DIN 6319
