Features: Most of our fasteners have a light zinc plating over steel giving a more rust resistant finsh.Used for Rotating Shafts And Applications Where The Pin Should Have Very Little Play. Stands Up To Side-load Force. Spring pins are slotted or coiled to expand to fit the diameter of a hole, which should be smaller than the diameter of the pinSpecifications:Spring pins diameter: 5mm/0.2inchSpring pins length: 50mm/1.95inchMaterial thickness:1mm/0.04inchColor: BlackMaterial: 65Mn Package includes: 30Pcs x Slotted Spring Pin