1、ICS 21.060.20Muttern fr T-NutenIn 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 508 : 2002-06English price group 06 Sales No. 000601.03DEUTSCHE NORM June 2002508 No
2、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).Translation by DIN-Sprachendienst.In case of doubt, the German-language
3、 original should be consulted as the authoritative text.Nuts for T-slotsContinued on pages 2 to 4.ForewordThis standard has been prepared by the Normenausschuss Werkzeuge und Spannzeuge (Tools and Clamp-ing Devices Standards Committee), Technical Committee Bohrbuchsen, Spannzeuge und Vorrichtungen.A
4、mendmentsThis standard differs from the January 1997 edition in that marking details have been changed and thestandard has been editorially revised.Previous editionsDIN 508: 1924-01, 1928-01, 1956-05, 1969-10, 1977-06, 1979-02, 1991-04, 1997-01.IntroductionThis standard conforms in substance to Inte
5、rnational Standard ISO 299 : 1987.In conjunction with DIN 6379 studs, nuts for T-slots form clamping elements similar in function to the T-headbolts specified in DIN 787.DIN 267-4 (withdrawn), upon which the April 1991 edition of this standard was based, was superseded byDIN EN 20898-2. However, nei
6、ther the property classes specified in the latter standard nor the hardnessclasses specified in DIN 267-24 apply because the T-nuts specified here are not compatible with conven-tional nuts. Instead, T-nuts as specified in this standard shall be subjected to tensile testing using the proofloads spec
7、ified in table 1 (cf. figure 2).To utilize the bearing capacity of T-nuts, full-length engagement of the stud is essential. It should be notedthat, when determining the bearing capacity of the assembly, allowance must be made for the reduced wallthickness of the shank.SupersedesJanuary 1997 edition.
8、Page 2DIN 508 : 2002-06All dimensions are in millimetres.1 ScopeThis standard specifies nuts for T-slots, which are elements for use with DIN 6379 studs, for mountingworkpieces or fixtures in T-slots as specified in DIN 650 on machine tool tables, workholding plates, and inworkholding fixtures and t
9、oolholders.2 Normative referencesThis standard incorporates, by dated or undated reference, provisions from other publications. These norma-tive references are cited at the appropriate places in the text and the titles of the publications are listed below.For dated references, subsequent amendments
10、to or revisions of any of these publications apply to thisstandard only when incorporated in it by amendment or revision. For undated references, the latest edition ofthe publication referred to applies.DIN 267-4 Fasteners Technical delivery conditions Property classes for nuts (previous classes)DIN
11、 267-24 Fasteners Technical delivery conditions Property classes for nutsDIN 650 Dimensions of T-slots for machine tool tablesDIN 787 T-head boltsDIN 6379 Studs for use with T-nutsDIN EN 20898-2 Mechanical properties of fasteners Part 2: Nuts with specified proof load values Coarse thread (ISO 898-2
12、 : 1992)ISO 299 : 1987 Machine tool tables T-slots and corresponding boltsISO 2768-1 : 1989 General tolerances Part 1: Tolerances for linear and angular dimensions without indi-vidual tolerance indicationsDIN EN ISO 4759-1 Tolerances for fasteners Part 1: Bolts, screws, studs and nuts Product grades
13、 A, Band C (ISO 4759-1 : 2000)3 Dimensions, proof loads and designationNuts for T-slots shall have dimensions and resist proof loads as specified in table 1 (cf. figures 1 and 2).Design details not given here remain unspecified.For general tolerances, tolerance class m as specified in ISO 2768-1 sha
14、ll apply.Figure 1: T-nutsPage 3DIN 508 : 2002-06a) Slot dimensions as in DIN 650.Figure 2: Tensile testing of nuts for T-slotsDesignation of an M16 nut for T-slots with a equal to 18 mm:Nut DIN 508 M16 18Table 1: Dimensions and proof loadsApprox.massper unit,in gLimitdevia-tionsLimitdevia-tionsSize
15、ofT-slotas inDIN 650Proofload,Fmin,in103N4 Material and hardness4.1 MaterialThe steel used for nuts for T-slots shall be at the manufacturers discretion.4.2 HardnessSize M4 nuts shall have a Vickers hardness of 170 HV or greater, size M5 up to M36 nuts, a hardness of 188 HVor greater, and nuts of si
16、zes greater than M36 shall have a hardness of 180 HV or greater.Limitdevia-tionsPage 4DIN 508 : 2002-065 TolerancesNuts for T-slots shall be manufactured in product grade A in accordance with DIN EN ISO 4759-1.6 MarkingAs a rule, nuts shall be marked with the DIN symbol in a durable manner. The marking shall be easy to read.If marking is not possible for lack of space, the smallest commercially available packaging unit shall bear themarking.Other relevant standardDIN 6330 Metric hexagon nuts 1,5 d high
