What is another word for screw thread?
Pronunciation: [skɹˈuː θɹˈɛd] (IPA) 
A screw thread is a helical ridge that is shaped on the outer surface or inside of a cylindrical object to allow it to be fastened to another object. Various synonyms exist for this term, including screw pitch, screw helix, bolt thread, and nut thread. Each of these terms refers to the same mechanical concept of a spiral-shaped groove on a screw or bolt that helps it to fasten to another object. Other related terms include screw cut, thread form, and screw gauge. Regardless of the terminology used, screw threads have become an essential part of modern engineering, with their use in everything from automotive and aerospace applications to construction and manufacturing.
