This generally implies that countersunk screws will sit flush With all the surface though non-countersunk screws will protrude higher than it. Having said that, that's not the definition . The taper would be the essential factor; both of those variations can function head types that protrude or sit flush. Lifted https://types-of-california-roof26925.prublogger.com/28902623/detailed-notes-on-types-of-screw-heads-diagram