1、ICS 21.060.10Splintlcher und Drahtlcher fr SchraubenIn keeping with current practice in standards published by the International Organization for Standardization(ISO), a comma has been used throughout as the decimal marker.ForewordThis standard has been prepared by Technical Committee Fachgrundnorme
2、n of the NormenausschussMechanische Verbindungselemente (Fasteners Standards Committee).This standard is based on International Standard 7378 : 1983 and includes the specifications for split pinholes and wire holes given in the September 1990 edition of DIN 962.AmendmentsThis standard differs from D
3、IN 962, September 1990 edition, as follows:a) Tolerances of position have been specified.b) For dimension le, minimum values have been specified.c) The standard now also covers wire holes in hexagon bolts with flange.Previous editionsDIN 962: 1953:03, 1969-08, 1975-09, 1983-12, 1990-09.Ref. No. DIN
4、34803 : 2001-11English price group 05 Sales No. 010507.02DEUTSCHE NORM November 200134803Continued on pages 2 to 4. 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
5、 right of sale for German Standards (DIN-Normen).Split pin holes and wire holes in bolts, screwsand studsTranslation by DIN-Sprachendienst.In case of doubt, the German-language original should be consulted as the authoritative text.This standard, together withDIN 962, November 2001edition, supersede
6、s DIN 962,September 1990 edition.Page 2DIN 34803 : 2001-11All dimensions are in millimetres.1 ScopeThis standard specifies the dimensions and position of split pin holes and wire holes in bolts, screws and studs.2 Normative referencesThis standard incorporates, by dated or undated reference, provisi
7、ons from other publications. These normativereferences are cited at the appropriate places in the text, and the titles of the publications are listed below. Fordated references, subsequent amendments to or revisions of any of these publications apply to this standardonly when incorporated in it by a
8、mendment or revision. For undated references, the latest edition of thepublication referred to applies.DIN 78 Bolt end protrusionsDIN 935-1 Hexagon slotted nuts and castle nuts with metric coarse and fine pitch thread Productgrades A and BDIN 935-3 Hexagon slotted nuts with metric coarse pitch threa
9、d Product grade CDIN 962 Designation system for fastenersDIN 979 Hexagon thin slotted nuts and castle nuts with metric coarse and fine pitch thread Product grades A and BDIN EN ISO 4759-1 Tolerances for fasteners Part 1: Bolts, screws, studs and nuts Product grades A, Band C (ISO 4759-1 : 2000)ISO 7
10、378 : 1983 Fasteners Bolts, screws and studs Split pin holes and wire holes3 Dimensions3.1 Split pin holesSee figure 1 and table 1.Figure 1: Split pin hole dimensions (notation)Page 3DIN 34803 : 2001-11Table 1: Split pin hole dimensionsThread diameter (d) 345678101214161820Hole diameter, d1(H14) 0,8
11、 1 1,2 1,6 1,6 2 2,5 3,2 3,2 4 4 4le(min.) 2 2,2 2,6 3,3 3,3 4 5 6 6,5 7 7,7 7,7Table 1 (continued)Thread diameter (d) 22 24 27 30 33 36 39 42 45 48 52Hole diameter, d1(H14) 5 5 5 6,3 6,3 6,3 6,3 8 8 8 8le(min.) 8,7 10 10 11,3 11,3 12,5 12,5 15 15 16 16The tolerance of position, t, shall be as speci
12、fied in table 2.Table 2: Tolerance of positionTolerance, t, for product grade (as in DIN EN ISO 4759-1)ABC2 IT 13 2 IT 14 2 IT 15The nominal length, l, of bolts with split pin hole is the sum of lengths lhand le(cf. figure 1) and is to be calculatedwith allowance being made for the tolerances on lh(
13、tolerance + IT 14 is recommended) and l. The calculatedlength shall be rounded off to the nearest nominal length.For hexagon slotted nuts and castle nuts as in DIN 935-1, DIN 935-3 and DIN 979, the levalues specified abovetake into account the bolt end protrusion, v, as specified in DIN 78 plus 0,5
14、times the slot depth, the aim beingto ensure that (with the nut fitted), theoretically, the split pin is located in the middle of the slot depth. They alsoallow for the tolerance on grip (i.e. on the thickness of components being joined).3.2 Wire holesThe wire hole dimensions specified in table 3 sh
15、all apply to hexagon and square head bolts and to hexagon boltswith flange. The distance from the centre line of the wire hole to the bearing surface shall be as specified infigure 2, and the tolerance of position, t, shall be as given in table 4.The wire hole dimensions specified in table 3 may als
16、o be used for hexalobular head bolts, in which case theposition of the wire hole in the bolt head is to be agreed upon.Figure 2: Wire hole dimensions (notation)Page 4DIN 34803 : 2001-11Table 3: Wire hole dimensionsThread diameter (d) 4 5 6 7 8 10 12 14 16 18 20Hole diameter, d2(H14) 1,2 1,2 1,6 1,6
17、2 2 2 2 3 3 3Table 3 (continued)Thread diameter (d) 22 24 27 30 33 36 39 42 45 48 52Hole diameter, d2(H14) 3 3 3344 44445Table 4: Tolerance of positionTolerance, t, for product grade (as in DIN EN ISO 4759-1)ABC2 IT 13 2 IT 14 2 IT 154 DesignationBolts, screws and studs with split pin hole or wire hole shall be designated in accordance with DIN 962.
