Types of Fasteners 1. Bolts and Nuts . A bolt is a threaded fastener which is always coupled with a nut. Bolts have external male thread and... 2. Screws. These are the fasteners which create their own threads while fastening into the material. They typically have... 3. Washers . These are the thin ...Why are fasteners used?
A fastener (US English) or fastening (UK English) is a hardware device that mechanically joins or affixes two or more objects together. In general, fasteners are used to create non-permanent joints; that is, joints that can be removed or dismantled without damaging the joining components. Welding is an example of creating permanent joints.