"cap screw." YourDictionary, n.d. Web. 14 January 2019. <https://www.yourdictionary.com/cap-screw>.
cap screw. (n.d.). Retrieved January 14th, 2019, from https://www.yourdictionary.com/cap-screw
(plural cap screws)
A screw that is threaded along the entire length of the shaft and 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.
English Wiktionary. Available under CC-BY-SA license.