2、 angle 公称直径 nominal diameter 螺纹大径 majordiameter螺纹小径 minordiameter螺纹中径 pitch diameter螺距 pitch螺纹导程 lead螺纹升角 lead angle螺纹牙厚 thread ridge thickness 螺纹槽宽 thread groove width 螺纹旋合长度 length of thread engagement螺纹接触高度 thread contact height螺距偏差 deviation in pitch 螺距累积误差 c
3、umulative error inpitch 螺栓 bolt双头螺柱 stud六角头螺栓 hexagon bolt地脚螺栓 foundation boltT形螺栓 T-headbolt,hammer head bolt螺钉 screw紧定螺钉 set screw自攻螺钉 tapping screw吊环螺钉 lifting eye bolt开槽圆柱头螺钉 slotted cheese head screw开槽盘头螺钉 slotted pan head screw开槽沉头螺钉 slotted countersunk(flat)
4、 head screw 开槽半沉头螺钉 slotted raised countersunk(oval) head screw 开槽圆头螺钉 slotted round head screw内六角圆柱头螺钉 hexagon socket head cap head screw内六角沉头螺钉 hexagon socketcountersunkhead cap head screw十字槽盘头螺钉 cross recessed pan head screw十字槽沉头螺钉 cross recessed countersunk he
6、amfer球头roundheads平头flatheads螺尾threadrunout退刀(越程)槽undercut车外螺纹externalthreadlathing车内螺纹internalthreadlathing套外螺纹coveringexternalthread攻内螺纹tapping钻孔drilling铰孔reaming通孔throughhole盲孔blindhole螺纹盲孔blindthreadedhole麻花钻twistdrill钻头角pointangle螺纹终止线threadendline公称直径nominaldiameter螺纹大径majordiameter螺纹小径 min
