DIN_74相关标准规范

01-12-12:2:30PM:5/38AUDC621.882.15472.3:621.882.215.091.6December 1980CountersinksNfor Countersunk Head Screws74Part 1Senkungen fur SenkschraubenDimensions in mm1 Dimensions and designationShape A for countersunk head screws in accordance with DIN 963 and DIN 965Oval head countersunk screws in accordance with DIN 964 and DIN 966Self-cutting screws shape F and G in accordance with DIN 7513 and shape D and E in accordance withD1N7516Thread-grooving screws shape K,L,M and N in accordance with DIN 7500Countersunk head wood serews in accordance with DIN 97 and DIN 7997Raised countersunk (oval)head wood screws in accordance with DIN 95 and DIN 7995Medium (m)typeFine (f)type90°：1090°：1*Designation of a countersink of shape A.medium (m)'execution for a 4 mm serew thread diameter:Countersink DIN 74-A m 4Table 1.For screw thread diameter 1)1121.4161.822533544.541d124131214161.8212.42.9343.94,55Typed2H132.42.8333,7414.65,76.5768.69.5m0.60.70.80.911.1141.61.92.12.3d,3H121.1131.51.722.22.73.23.74,348Typed3122252.83.3384.356789t0.70.80.9112121.51.722.22.4+01200,20,150,150,2020,150,350,250,30,30,3For screw thread diameter 3)554167418101214161820d12)H135.566.67.69Type1113515.517.52022d2H1310.411412.414.416.4204123.926,931.936.440.4m11e2.52.72.93.33.74,75,25.77.28.29.2d13)r12535.86.47.48.410.51315171921Typed3H121010.8115131519232630343712.62833.5455.76.27.78.79,7200.2030.450.450.70.707071212171)In the case of wood screws:nominal diamneter2)Through hole medium in accordance with DIN ISO 273 (except for screw thread diameter 5.5)3)Through hole fine in accordance with DIN ISO 273 (except for screw thread diameter 5.5)4)Applies only to wood screwsContinued on pages 2 to 4Explanations on page 450