See also: capscrew English Noun cap screw (plural cap screws) A screw that has a cap which is intended to rest against the side of the outermost material being screwed together when the screw has been screwed in to its maximum extent. Hypernyms: screw < fastener < hardware Hyponym: SHCS See also screw cap Anagrams screw cap, screwcap Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads