Material: These countersunk washer are made of 304 stainless steel with excellent corrosion resistance, high strength, good abrasion resistance and oxidation resistance to ensure long lasting results.
Locking: These conical washers increase the contact area and grip the surface tightly, preventing loosening of the connecting parts and improving the safety and reliability of the connection.
Application: This Cup washers are used to tighten bolts, screws, etc.. This can be used in a variety of applications, making it an excellent choice for industrial, communication, marine, agriculture, machinery and more.