DescriptionThe inner tooth lock washer is made of manganese steel material, which is safe and durable, and can play an excellent fastening function to prevent loosening. Made with excellent craftsmanship. It has good performance and will not rust or damage easily. In addition to the good fastening effect, the washer can also have a certain cushioning effect during the vibration process. It is a very practical small part.Features-Color: Black.-Material: Manganese Steel. -Size: About 2.40X2.40X0.20cm/ 0.94X0.94X0.08inch. -Made of sturdy and durable manganese steel material, it can serve you for a long time. -It is not easy to rust and can serve you for a long time. It will be your good choice of parts. -Small and practical, easy to store, and easy to install applications. -With simple design and good working performance, it can play an excellent fastening role. -It can be used for fastening and buffering, and can be well used for replacement and maintenance.