countersigns

Noun

A conical hole cut into a material to allow the head of a screw or bolt to lie flush with or below the surface.

ریشه

From the verb 'countersink' meaning 'to cut a conical hole into a material to allow the head of a screw or bolt to lie flush with or below the surface'.

مثال

• The carpenter used a countersink to create a flush surface for the screws.
• The countersink ensures that the screw head is hidden.
• The metal plate has countersinks for the bolts.

ترکیب‌های رایج

Use a countersink Create a countersink Have countersinks