Pins are fastening hardware used to align, mount, penetrate, or assemble two workpieces. Their operations depend on employment and design. Pin manufacture largely depends on the type of material being used and the design. Most of the industrial pins are designed using metal for strength, functionality, and precision. The main categories of pins include:
1) Hitch and linch pins: These pins are made with couple mating components.
2) Cotter pin and wire clips: This category of pins is mainly used for maintaining components within a specific type of assembly. They function like linch pins on wheel and axles.
3) Dowel pins: These pins are designed to fix two parts together, especially when an adhesive will be used.
4) Spring pins: These pins are unique because they feature an expandable thickness that takes the diameter of the insertion hole. They are considered part of self-retaining fasteners
The main types of materials used to manufacture pins include aluminum, titanium, hardened steel, brass, stainless steel, and monel. Note that you can also find some industrial pins made of plastic. These are mainly used for injection molding.