Disc Spring Lock Washer, JIS B 1251, Class 1, for Screws, for Light Loads

Brand :
SUNCO
Caution
Product Description
Has a spring reaction force comparable to the axial force of a fastened bolt, helping prevent screws from coming loose due to vibration, shock, etc.
Furthermore, by reducing pressure on the seating surface, it is possible to eliminate deterioration of the member piece being fastened, producing a stable fastening axial force.