4.2 自攻螺钉用螺纹
自攻螺钉用螺纹(GB/T 5280—2002) 见表1.1.14。
表1.1.14 自攻螺钉用螺纹/mm
续表
螺纹
规格ST1.5ST1.9ST2.2ST2.6ST2.9ST3.3ST3.5ST3.9ST4.2ST4.8ST5.5ST6.3ST8ST9.5P ≈0.50.60.80.91.11.31.31.31.41.61.81.82.12.1d2max0.911.241.631.902.182.392.642.923.103.584.174.886.207.85min0.841.171.521.802.082.292.512.772.953.433.994.705.997.59d3max0.791.121.471.732.012.212.412.672.843.303.864.555.847.44min0.691.021.371.601.882.082.262.512.693.123.684.345.647.24c max0.10.10.10.10.10.10.10.10.10.150.150.150.150.15r① ≈------0.50.60.60.70.80.91.11.4y
参
考②C型1.41.622.32.633.23.53.74.3567.58F型1.11.21.61.82.12.52.52.72.83.23.63.64.24.2R型------2.733.23.64.356.3-号码No③0123456781012141620
注:①r是参考尺寸,仅供指导。螺纹末端不一定是完整的球面,但触摸时 ...... (共686字) [阅读本文]>>