自攻丝

self-tapping screw

自攻丝螺钉 [机] self-tapping screw ; self-threading screw ; tapping screw

自攻螺丝 self tapping screw ; tapping screw ; expansion bolt ; self-tapped screw

自攻丝尖尾切脚 AT

自钻孔自攻丝螺钉 self-drilling tapping screw

不锈钢自攻螺丝 STAINLESS STEEL SELF TAPPING SCREWS

钢制自钻孔自攻丝螺钉 Steel Self-Drilling Tapping Screws

自动攻牙锁螺丝机 automatic tapping and screwing machine

自动攻丝机 automatic tapping machine

三角自攻螺丝 TAP TITE

自动螺母攻丝机 automatic nut tapping machine

自攻丝

顾名思义,可以自己攻丝的螺丝。一般的螺丝必须要有加工好的螺孔才能拧进去。在拧入的同时自己进行攻丝.为达到自己攻丝的目的,这种螺丝一般都是尖头,以方便挤入待拧进的物件。

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