螺纹孔;攻丝孔:在金属、塑料等材料上先钻孔,再用丝锥加工出内螺纹,以便拧入螺栓或螺钉的孔。(也常指“已攻好牙的孔”)
/tæpt hoʊl/
The bracket is secured with two bolts in a tapped hole.
支架通过拧入一个螺纹孔的两颗螺栓固定。
To avoid cross-threading, align the screw carefully before tightening it into the tapped hole.
为避免滑牙或乱扣,在把螺钉拧进螺纹孔之前要仔细对准再拧紧。
tapped 来自动词 tap 的过去分词用法,在机械加工语境中指“用丝锥攻出螺纹(to cut threads)”;hole 表示“孔”。合起来 tapped hole 就是“攻过丝、带内螺纹的孔”。(英美工程语境中也常见 tapped thread、tapped bore 等类似搭配。)