Cad é Scriúnna Gearradh Snáithe?

Athreadcuttingscrewisatypeofselftappingscrew-inthatitbothtapsandfastensinasingleoperation.
Andunlikeathreadrollingscrewwhichdisplaces / deformsthematerialinthenewlyformedthreadpath,
threadcuttingscrewsphysicallyremovethematerialintowhichtheyaredrivenastheyformnewmatingthreads.