countersunk Hear it!

Variant of countersink

countersink Definition

counter·sink (ko̵unt′ər siŋk′)

transitive verb countersunk -·sunk′, countersinking -·sink′·ing

  1. to enlarge the top part of (a hole in metal, wood, etc.) so that the head of a bolt, screw, etc. will fit flush with or below the surface
  2. to sink the head of (a bolt, screw, etc.) into such a hole

noun

  1. a bit for countersinking holes
  2. a countersunk hole
countersunk Usage Examples

Object

  • screwholes: The decorative brass rod is mounted onto a cast backplate with 2 countersunk screwholes for fixing.
  • hole: Countersunk holes, with or without key slots, are offered for flat head bolts.
  • bolt: These were countersunk head bolts with no means of holding them if they turned during attempts to remove the nuts.

Present participle complement

  • mount: The cast brass mounts are cranked and each has four countersunk mounting screw holes.
  • fix: Surface mounted Trailer Plates have beveled edges and countersunk fixing holes, meaning the Trailer Plates have minimal projection above yard level.

Modifying Another Word

  • then: This hole was then drilled and one either side, the holes were then countersunk to allow the bolts to sit flush.
  • not: Round - these are used where the holes are not countersunk at all.