1、DEUTSCHE NORM Amil 2000 Square taper steel washers for use with channel sections DIN 434 - ICs 21.060.30 Scheiben, vierkant, keilfrmig, fr U-Trger Supersedes January 2000 edition. In keeping with current practice in standards published by the International Organization for Standardization (ISO), a c
2、omma has been used throughout as the decimal marker. Foreword This standard has been prepared by Technical Committee Scheiben und Ringe of the Normenausschuss Mechanische Verbindungselemente (Fasteners Standards Committee). The DIN 4000-3-2 tabular layout of article characteristics shall apply to wa
3、shers as covered in this standard. Amendments This standard differs from the April 1990 edition in that diameterd has been changed for sizes M12 and M16 in accordance with DIN EN 20273 (medium series), and references have been updated. As compared with the January 2000 edition, a printing error has
4、been corrected. Previo us edit ions DIN 434: 1921 -1 1, 1924-04, 1936-1 O, 1943-05, 1961 -02, 1970-1 1, 1990-02, 1990-04. 2000-01. All dimensions are in millimetres. 1 Scope This standard specifies dimensions and technical delivery conditions for square taper washers for use in structural bolting of
5、 steel channel sections using bolts up to property class 5.6. 2 Normative references This 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 titles of the publications are listed
6、 below. For dated references, subsequent amendments to or revisions of any of these publications apply to this standard only when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to applies. DIN 267-1 O DIN 4000-3 DIN EN 20273 DIN EN
7、 IS0 3269 DIN EN IS0 4042 Fasteners - Technical delivery conditions - Hot-dip galvanized components Tabular layouts of article characteristics for washers Fasteners - Clearance holes for bolts and screws (IS0 273 : 1979) Fasteners -Acceptance inspection (ISO/DIS 3269 : 1998)l) Fasteners - Electropla
8、ted coatings (IS0 4042 : 1999) l) Currently at draft stage. Continued on pages 2 and 3. Translation by DIN-Sprachendienst. In case of doubt, the German-language original should be consulted as the authoritative text. No pari of this translation may be reproduced without the prior permission of Ref.
9、No. DIN 434 : 2000-0 V Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany, s the exclusive right of sale for German Standards (DIN-Normen). English price group 05 Sales No. 0105 06.00 Page 2 DIN 434 : 2000-04 Min. 3 Dimensions Max. a b _I ?1 1 Rolled-in grooves for
10、 indication of (8 * 0,5) YO taper (on top side) Figure 1: Washer dimensions (notation) Table 1 : Washer dimensions and mass d I b Min. Min. = nominal I Max. I size size Nominal For thread size Nominal size Nominal size1) Max. M8 9 I 9,36 I 22 22 21,35 22,65 M1 O 11 I 11,43 I 22 22 21,35 22,65 M12 13
11、5 I 13,93 I 26 30 29,35 30,65 il,5 1 17,93 1 4: 22,52 24 24,52 44 M16 M20 M22 29,5 34,5 37,5 42,5 41,5 36 44 50 35,2 43,2 49,2 36,8 44,8 50,8 M24 26 I 26,52 I 56 53 I 59 56 55,05 56,95 M27 30 I 30,52 I 56 53 I 59 56 55,05 56,95 For l), see page 3. (continued) Page 3 DIN 434 : 2000-04 83 83 (auxilia
12、ry dimen- Nominal size1) 7,3 9,7 3,2 1 33 128 7,3 9,7 3,2 1 33 119 sion) 9 M8 23 Taper angle 17,5 M16 4,45 1,5 22 I M20 I 5,25 24 I M22 I 6 26 I M24 I 6,26 30 I M27 I 6,26 l) Nominal size equal to clmin. 2, For washers with an (8 * 0,5) % taper, e = h (nominal size) - 0,04 b (nominal size). 4 Techni
13、cal delivery conditions 4.1 Material Washers shall be made of steel, the steel grade being at the manufacturers discretion. The hardness shall be 100 to 250 HV 10. 4.2 Surface finish Washers shall have a bright surface finish, be free from burr, and be electroplated as specified in DIN 267-1 O or ho
14、t-dip galvanized as specified in DIN EN IS0 4042. 4.3 Acceptance inspection Acceptance inspection shall be undertaken on the lines of DIN EN IS0 3269. The acceptable quality level (AQL) for the major characteristics shall be as specified in table 2. Table 2: AQL values I Major characteristic I AQL value I I Hole diameter I 1,5 I I Coaxiaiity I 1,5 I 5 Designation Designation of a nominal size 13,5 washer for use with channel sections: Washer DIN 434 - 13,5
