Definitions

1. noun

A hole or depression in an object that is slightly below the surface, typically for the purpose of receiving a countersunk screw or bolt.

“The engineer specified that the metal plate should have countersunk holes for the bolts to ensure a secure fit.”

2. adjective

Having a hole or depression that is slightly below the surface, typically for the purpose of receiving a countersunk screw or bolt.

“The countersunk screws were used to attach the wooden panels to the frame of the cabinet.”