论文部分内容阅读
盲孔：螺孔最小深度“G”等于沉头座或平底扩孔的最大深度加全螺纹最小长度“E”。钻孔深度“H”等于螺孔最小深度“G”加退刀段“F”。
Blind hole: The minimum depth of the screw “G” is equal to the maximum depth of countersunk or flat bottom reaming plus the minimum full length “E” of the full thread. The drilling depth “H” is equal to the minimum depth of the screw “G” plus the retraction “F”.