A fastener is a term describing a wide range of tools such as screws, washers, nuts, and bolts. All these tools have a common objective of holding two or more objects mechanically together.

Unlike glue, fasteners can secure objects made of metal, plastic, wood, and concrete. They hold together objects that can endure high levels of stress. These screws, locking washers, nuts are further categorized into socket screws, wood screws, permanent fasteners, self-tapping screws, and many more.