最全紧固件用沉孔尺寸规格表

紧固件用沉孔尺寸(摘自GB/T 152.2-152.4-1988)/mm螺纹规格1.62 适用于GB/Td23.74.568、GB/T 69等沉1.01.2头和半沉头螺钉的t≈沉孔d11.82.4 适用于GB/T846、GB/T 847GB/T 6561等自攻螺钉沉孔 适用于GB/T70的圆柱头沉孔圆柱头用沉孔(摘自GB/T152.3-1988) 适用于GB/T65用圆柱头沉孔螺钉规格ST2.2ST2.92.55.61.52.9ST336.41.63.49.42.64.53.58.42.43.949.62.74.552.75.563.36.6ST884.69.0ST9.5105.0126.0147.0168.02010.010.612.617.620.324.428.432.440.411.013.615.517.532.0沉头用沉孔(摘自GB/T152.2-1988)ST4.2ST4.8ST5.5ST6.3螺纹规格d2①t≈d1①d2②t②d3d1②4.41.12.46.31.73.18.22.43.710.411.512.617.320.02.85.13.05.83.26.74.68.45.210.01.63.31.8-1.824.32.3-2.42.55.02.9-2.936.03.4-3.448.04.6-4.555.7-5.566.8-6.689.0-9.0101214162024303610.011.015.018.020.024.026.033.040.048.057.011.013.015.017.521.525.532.038.0-1618202428364211.013.515.517.522.026.033.039.0螺纹规格483.2-4.55104-5.56114.7-6.68156.0-9.010187.0-11.012208.01614249.01816262036d2②②td3d2②螺纹规格10.512.5202413.515.517.522.01.65-1.826-2.42.58-2.939-3.4410-4.5511-5.5613-6.6818-91022-111226.0161430181633201836222020402422六角头螺栓和六角螺母用沉孔(摘自GB/T 152.4-1988)d2③d3d1④螺纹规格13.515.517.5224326242448282627533030613333663636713939764242824845458951484898.05652521076056551126862601187266641257670d2d3d1④③33.036.039.042.045.0备注:①尺寸d1和d2公差带均为H12。 ②尺寸d1、d2和t的公差均为H13。 ③尺寸d2的公差带为H15。 ④尺寸d1的公差带为H13。

⑤对于尺寸t，只要能制出与通孔轴线垂直的圆平面即可。

⑥表中的沉孔深度t为最小深度,可以根据装配的需要加大深度。