These bearing clamp washers are made of quality material carbon steel. It has a reasonable design, practical functions, and can be well applied to fixation, maintenance, protection, etc. Simple structure and excellent craftsmanship make it easy to use and have excellent durability, will provide you with good service and support your repeated use. Features -Color: Black. -Material: Carbon steel. -Size: About 2.60X2.60X0.10cm/1.02X1.02X0.04in. -Specification: - . - Suitable for power supply and marine equipment for household and commercial electrical appliances - Also applicable to automotive and connections with screw/bolt connections. - A good substitute retaining clip for broken or worn out one. - Excellent retaining clip for fixing axles, shafts and other moving parts. - Maintains the washer hard against the substrate and the bolt thread hard against the nut or substrate thread. Package list: 210 x Locking Washers