- Size Guide - Imperial
A screw is a type of fastener, similar in some ways to a bolt, usually made of metal and distinguished by a helical ridge, known as an external thread. Screws are used to fasten items by digging in and wedging into a material when inserted into a tool. There are many screws for a variety of materials; those typically attached to screws include wood, sheet metal, and plastic.
|Length (L)||Across Flats (A/F)||Head Depth ( T)||Flange DIA.|