cap screw

基本解釋

Tapping is the process of cutting a thread inside a hole so that a cap screw or bolt may be threaded into it.
攻絲是在一個孔中車出螺紋,以便裝上有帽螺釘或螺栓。
To adjust the setting of the valve, loosen locking cap screw with hex wrench, see Figure 3.
如果要調節(jié)閥門的設置，則利用六角扳手松開鎖緊帽螺絲，參閱圖3。
Heat and unscrew all the cap screws.
將全部有頭螺釘加熱并擰下來。
The reader might as well imagines, under the zero gravity condition, buries the head Harbo inside, then twists more than 100 small hexagonal cap screw nail.
讀者不妨想象一下，在零重力條件下，將腦袋埋進“哈勃”里面，而后擰掉100多顆小六角帽螺絲釘。
A cap screw forgets after avoid by all means opens bottle, can make otherwise alcohol composition volatilizes, also can make flavor oxidizes and deteriorate.
切忌開瓶后忘記把瓶蓋扭緊，否則會令酒精成分揮發(fā)，也會令香料氧化而變質。

a screwed bolt with a cylindrical head having a hexagonal recess. The bolt is turned using a wrench of hexagonal cross section