|Spring or rolled pins are hollow, cylindrical tube-style press fit fasteners with chamfered ends. They have been available for a long time and as a result, there are an abundance of designs, material and finishes with wide stock availability. They are typically used as locking devices, positioning points, anti-chafing surfaces, shafts or sleeves for wiring. Usage is limited only by one's imagination and technological capabilities. Spring pins are also referred to as slotted or roll pins. Coiled rolled pins are sometimes referred to as spiral pins.