Question

define screw.
3 points​

Answer 1

Answer:

A screw is a type of fastener, in some ways similar to a bolt (see Differentiation between bolt and screw below), typically made of metal, and characterized by a helical ridge, known as a male thread (external thread). Screws are used to fasten materials by digging in and wedging into a material when turned, while the thread cuts grooves in the fastened material that may help pull fastened materials together and prevent pull-out. There are many screws for a variety of materials; those commonly fastened by screws include wood, sheet metal, and plastic.

Answer 2

Answer:

a thin pointed piece of metal used for fixing two things, for example pieces of wood, together. You turn a screw with a special tool (a screwdriver).