Rolled pins are hollow, cylindrical tube-style press fit fasteners with chamfered ends. They have been around a long time, and as a result there are an abundance of designs, materials, and finishes with wide stock availability. Rolled pins are used as locking devices, positioning points, anti-chafing surfaces, shafts, or sleeves for wiring. Usage is limited only by your imagination and technological capabilities. Slotted pins are also known as roll pins or spring pins. Coiled rolled pins are sometimes referred to as spiral pins.