攻丝底孔深度比丝深要深多少?答:M10的丝深20mm,钻头打底孔深是27mm,攻盲孔(不通孔)的螺纹时,因丝锥不能攻到底,所以孔的深度要大于螺纹的长度,盲孔的深度可按下面的公式计算:孔的深度=所需螺纹的深度+0.7d 公称直径d ,通孔拧入深度h ,盲孔拧入深度H ,攻丝深度H1,3,8,6,7.4,10,8,10.5,12,10,12.6,15,12,...
攻丝钻孔深度答:孔的深度=所需螺纹的深度+0.7d。可以参考下面标准:公称直径d ,通孔拧入深度h ,盲孔拧入深度H ,攻丝深度H1,3,8,6,7.4,10,8,10.5,12,10,12.6,15,12,15.8,20,26,18.10,24,20,23.12,28,24,27.16,36,32,36.20,45,40,45.24,55,48,54.30,70,60,67.36,80,72,80.42...