Spring washer for bolts and nuts to prevent returns Unichrome plated for added corrosion resistance [Features] Spring washer for bolts and nuts is a common No. 2. Anti-return effect. Unichrome plated for improved corrosion resistance. [How to use] (1) Use it as a return washer when tightening with bolts, small screws, and nuts. (2) Corrosion resistant compared to fabric.
There are tolerances in the measurements. Please read the precautions before use