An alignment pin is a crucial component used in various industrial and mechanical applications to ensure the precise positioning and alignment of parts during assembly, machining, or maintenance processes. These pins are typically cylindrical rods made from high-strength materials such as stainless steel, hardened steel, or other durable alloys, chosen for their ability to withstand mechanical stress and maintain their dimensional integrity under demanding conditions.

The primary function of an alignment pin is to provide a reference point or guide that ensures parts are accurately aligned relative to each other. This is particularly important in applications where precise alignment is critical for the proper functioning of the assembly, such as in automotive manufacturing, aerospace engineering, and precision machining.