countersunk hole

A hole which is drilled into a surface, so that when a screw is inserted, the screw head is level with the surface.

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  • 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

  • hole — See access hole bolt hole countersunk hole cubby hole drain hole limber hole oil filter hole pilot hole radiator fill hole spurt hole …   Dictionary of automotive terms

  • 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 — 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 — 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 — 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 Collaborative International Dictionary of English

  • Countersink — 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… …   Wikipedia

  • List of screw drives — Contents 1 Common types 1.1 External types 1.1.1 Square 1.1.2 Hex …   Wikipedia

  • countersink — /ˈkaʊntəsɪŋk/ (say kowntuhsingk) verb (t) (countersunk, countersinking) 1. to enlarge the upper part of (a hole or cavity), especially by chamfering, to receive the cone shaped head of a screw, bolt, etc. 2. to cause (the head of a screw, bolt,… …   Australian English dictionary

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