1、DEUTSCHE NORMTranslation by DIN-Sprachendienst.In case of doubt, the German-language original should be consulted as the authoritative text. 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,
2、Germany,has the exclusive right of sale for German Standards (DIN-Normen).February 2005T-head boltsDocument comprises 4 pages.ICS 21.060.10Schrauben fr T-NutenIn keeping with current practice in standards published by the International Organization for Standardization (ISO), a comma has been used th
3、roughout as the decimal marker. ForewordThis standard has been prepared by the Normenausschuss Werkzeuge und Spannzeuge (Tools and Clam-ping Devices Standards Committee), Technical Committee Bohrbuchsen, Spannzeuge und Vorrichtungen.Some of the dimensions specied are identical to those for T-slots s
4、pecied in International Standard ISO 299. The ISO Standard differs from the present standard in that it species only connecting dimensions, and the e1values for M 20, M 30 and M 36 bolts are smaller by 1 mm than those specied here. For M 8, M 12, M 16, M 20 and M 24 bolts, the k values are identical
5、.AmendmentsThis standard differs from the June 2002 edition in that tolerances on the coaxiality of bolt head and shank (dimension t) have been included and the standard has been editorially revised.Previous editionsDIN 787: 1958x-03, 1967-11, 1977-06, 1977-08, 1991-05, 2002-06.All dimensions are in
6、 millimetres.1 ScopeThis standard species T-head bolts, which are elements for mounting workpieces or xtures in T-slots as specied in DIN 650, on machine tool tables, workholding plates, and in workholding xtures and toolhol-ders.2 Normative referencesThis standard incorporates, by dated or undated
7、reference, provisions from other publications. These nor-mative references are cited at the appropriate places in the text and the titles of the publications are listed below. For dated references, subsequent amendments to or revisions of any of these publications apply to this standard only when in
8、corporated in it by amendment or revision. For undated references, the latest edition of the publication referred to applies.DIN 76-1 Thread run-outs and thread undercuts for ISO metric screw thread in accordance with DIN 13 seriesDIN 650 Dimensions of T-slots for machine tool tablesDIN EN ISO 898-1
9、 Mechanical properties of fasteners made of carbon steel and alloy steel Part 1: Bolts, screws and studs (ISO 898-1 : 1999)DIN EN ISO 4753 Fasteners Ends of parts with external ISO metric screw thread (ISO 4753 : 1999)DIN EN ISO 4759-1 Tolerances for fasteners Part 1: Bolts, screws, studs and nuts P
10、roduct grades A, B and C (ISO 4759-1 : 2000) ISO 299 : 1987 Machine tool tables T-slots and corresponding boltsEnglish price group 7 www.din.de www.beuth.de06.05 9633455787Supersedes June 2002 edition.Page 2 DIN 787 : 2005-023 Dimensions and designationT-head bolts shall have dimensions as specied i
11、n table 1 (cf. gures 1 to 4).Design details not given here remain unspecied. 1) x1as in DIN 76-1.2) u (incomplete thread).= 2 P maximum.3) Type CH or type RN thread end, as in DIN EN ISO 4753. Other dimensions as for gure 1.Figure 1: Bolts up to size M 12 12 (with a d1)Figure 2: Bolts from size M 12
12、 14 (with a d1)1) e2 e1; style of head at manufacturers discretionFigure 3: Head styles (Detail A)Figure 4: Coaxiality of bolt head and shankDesignation of an M 10 T-head bolt with a equal to 10 mm, of nominal length, l, equal to 100 mm and assigned to property class 8.8:Bolt DIN 787 M 10 10 100 8.8
13、Page 3 DIN 787 : 2005-02Table 1: T-head bolt dimensionsd1a l b d2e1f h1t h2kApprox. mass per unit, in gSize of T-slots as in DIN 650Limit devia-tionsLimit devia-tionsLimit devia-tionsmm mm mm mm mm mm mm mm mm mm mm mm mm mm mmM5 525 1810 9 1 6,50,510 35540 30 6M6 625 1512 101,68 13 410640 28 1563 4
14、0 18M8 832 2216 13 12 18 620850 35 3080 50 40M10 1040 3020 15 1,6 14 21 6401063 45 48100 60 70M121250 3525 182,516 25 7601280 55 90125 75 120200 120 1901450 3528 22 20 8751480 55 100125 75 140200 120 200M16 1863 4536 282,5241013518100 63 220160 100 300250 150 430M20 2280 5545 35 32 1434022125 85 440
15、200 125 610315 190 810M24 28100 7056 44 4 411866028160 110 850250 150 1 130315 240 1 200M30 36125 8070 546501221 33036200 135 2 000315 200 2 270500 300 3 300M36 42160 10082 65 60 262 40042250 175 3 000400 250 4 100M42 48160 10095 75 70 303 40048250 175 4 300400 250 5 800M48 54200 130110 85 6 80 345
16、30054315 220 4 000500 300 9 200Page 4 DIN 787 : 2005-024 MaterialThe material of T-head bolts shall be of property class 8.8 or 12.9 as specied in DIN EN ISO 898-1.5 TolerancesT-head bolts shall be subject to the tolerances specied for product grade A in DIN EN ISO 4759-1.6 MarkingT-head bolts shall
17、 be marked witha) the manufacturers symbol;b) property class 12.9, if applicable;c) the DIN number.If marking of the bolt is not possible for lack of space, the smallest commercially available packaging unit shall bear the marking.Other relevant standardsDIN 267-2 Fasteners Technical delivery conditions Product grades and tolerancesDIN 508 Tee nutsDIN 6330 Metric hexagon nuts 1,5 d highDIN 6379 Studs for use with T-nuts
