- vt.
(-sunk ) 打孔装埋(螺钉头)，打埋头孔。n.
埋头钻；埋头孔，暗钉眼。
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countersink中文什么意思
例句与用法
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- Countersunk head rivets ; nominal diameters 1 to 8 mm
沉头铆钉.公称直径1至8mm - 90 countersunk bolts , short thread , shank tolerance h8
光杆公差带h8短螺纹90沉头螺栓 - Slotted countersunk flat head screws common head style - product grade
开槽沉头螺钉 - Hexalobular socket raised countersunk head tapping screws
内六角花形半沉头自攻螺钉 - Hexagon socket flat countersunk head cap screws metric series
米制六角凹头沉头螺钉
英文释义
名词- a bit for enlarging the upper part of a hole
同义词：counterbore, countersink bit - a hole (usually in wood) with the top part enlarged so that a screw or bolt will fit into it and lie below the surface
- insert (a nail or screw below the surface, as into a countersink)
同义词：set
百科释义
A countersink is a conical hole cut into a manufactured object, or the cutter used to cut such a hole. A common usage is to allow the head of a countersunk bolt or screw, when placed in the hole, to sit flush with or below the surface of the surrounding material.
详细百科解释