After fully fixed, the groove edge and material surface in the nut.
M39x46x0.5 -2pcs5 Crests
M41x51x0.5 -2pcs 5 Crests
Spring Split Lock Washer Elastic Gasket GB93
Prevent Sliding: Wave washers are designed to prevent bolts from sliding down under heavy pressure. This makes them ideal for use in indoor or outdoor applications that require a good surface treatment and a secure hold.Versatile: Wave washers are suitable for a wide range of applications in many different industries, including the automotive, food, and catering industries. They are also commonly used in the engineering and construction industries.