外螺纹头 PM
螺纹头数 number of starts of thread
公制螺纹头数 number of metric threads cut
惠氏螺纹头数 number of Whitworth thread cut
螺纹弯头 threaded elbow
外螺纹接头 male adapter ; male connection ; MALE COUPLING ; CONNECTOR,MALE
单头螺纹 single thread ; one start screw ; single-start thread ; single screw thread
双头螺纹 Double Start Thread ; double-thread screw ; DT
内螺纹头 PF
圆头一字槽螺钉的俯视图。选择框代表螺纹直径。
Top view of roundhead slotted screw. Selection box represents thread diameter.
螺钉角度的变异会致使锁定界面的减少或跨螺纹的头。
Variation of the screw Angle results in reduction of purchase of the locking interface, or cross-threading the head.
用螺纹联接并起紧固作用的零件称为螺纹紧固件。常用的螺纹紧固件有螺栓、双头螺柱、螺钉、螺母、垫圈等。
Parts with threads used for joining and fastening are called screw fasteners. The most widely used components as screw fasteners are bolts, double screw bolts, screws, nuts, washers.
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