FACTS ABOUT TYPES OF SCREW HEADS REVEALED

A U-push screw features a helical thread having an angle acute ample being driven by a hammer or strain from an arbor push, and therefore has a domed head with no indicates of turning it.[ninety] they're most often pushed into plastics which has a pre-drilled pilot hole. See also[edit] The TA is actually a kind of screw generate that utilizes a tr