MOTO-D Stainless Steel (304 series) Motorcycle Spring Clip Racing Safety Pins are quick-release safety wire clips for use on motorcycles, go-karts, boats and race cars. Save yourself the trouble of re-safety wiring parts by using these spring clips. Size L (66mm length x 22mm height) typically used on axle nuts. The thickness of the wire is 2.2mm. Total Spring Clips 10.