Size Name: 6mm x 55mm Features: Most zippers are lightly galvanized over steel to provide a more rust-resistant finish. Ideal for spinning shafts and applications where pins are required. There are very small play. Withstands the power of side loads. Spring pins are expanded or slotted to match the diameter of the hole and should be smaller than the diameter of the pin Specifications: Spring pin diameter: 6mm / 0.24inch Spring pin length: 55mm / 2.15inch Thickness: 1.2mm / 0.05inch Color: Black Material: 65Mn Package included: 20pcs x Slotted Spring Pins