Countersunk
Countersink Coun"ter*sink` (koun"t[~e]r*s[i^][ng]k`; 277), v. t. [imp. & p. p. {Countersunk} (-s[u^][ng]k`); p. pr. & vb. n. {Countersinking}.] 1. To chamfer or form a depression around the top of (a hole in wood, metal, etc.) for the reception of the head of a screw or bolt below the surface, either wholly or in part; as, to countersink a hole for a screw. [1913 Webster]

2. To cause to sink even with or below the surface; as, to countersink a screw or bolt into woodwork. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Countersunk — Coun ter*sunk ( s?nk ), p. p. & a. from {Countersink}. 1. Chamfered at the top; said of a hole. [1913 Webster] 2. Sunk into a chamfer; as, a countersunk bolt. [1913 Webster] 3. Beveled on the lower side, so as to fit a chamfered countersink; as,… …   The Collaborative International Dictionary of English

  • countersunk — ˈkau̇ntə(r)+| adjective Etymology: from past participle of countersink (I) 1. : having a countersink at the top a countersunk hole 2. : having the head set in a countersink …   Useful english dictionary

  • countersunk — adj. make (the head of a bolt, nail, etc.) flush or level with a surface countersunk (countersink) v. make (the head of a bolt, nail, etc.) flush or level with a surface coun·ter·sink || kaÊŠntÉ™rsɪŋk v. make (the head of a bolt, nail, etc.)… …   English contemporary dictionary

  • countersunk — coun·ter·sunk (kounʹtər sŭngk ) v. Past tense and past participle of countersink. * * * …   Universalium

  • countersunk — adjective That has a flat conical top allowing it to be inserted flush with a surface …   Wiktionary

  • countersunk — coun·ter·sunk …   English syllables

  • countersunk bolt — A bolt with a special head. The underside of the head is tapered to fit into a hole that has tapered sides (countersunk hole) so that when the bolt is screwed in all the way, the top of the bolt is flush with the surface …   Dictionary of automotive terms

  • countersunk screw — A screw with a special head. The underside of the head is tapered to fit into a hole that has tapered sides (countersunk hole) so that when the screw is screwed in all the way, the top of the screw is flush with the surface …   Dictionary of automotive terms

  • countersunk hole — noun A hole which is drilled into a surface, so that when a screw is inserted, the screw head is level with the surface …   Wiktionary

  • countersunk hole — A hole with sloping sides where the top of the hole is larger than the bottom of the hole as in the shape of the letter V …   Dictionary of automotive terms

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