In woodworking and construction. a nail is a pin-shaped object of metal which is used as a fastener, as a peg to hang something. or sometimes as a decoration.

Screws

A screw is a type of fastener, typically made of metal. Screws are used to fasten materials by digging in and wedging into a material

Nuts & Bolts

Nuts are almost always used in conjunction with a mating bolt to fasten multiple parts together. The two partners are kept together by a combination of their threads’ friction, a slight stretching of the bolt. and compression of the parts to be held together.