Medium Split Lock Washer 18 8 Stainless Steel Black Oxide and Oil

Regular: (A) Applies greater bolt tension per unit of applied torque; (B) Provides a hardened bearing surface, creating more uniform torque control; (C) Provides more uniform load distribution; (D) Resists loosening caused by vibration and corrosion; E) Is preferred lockwasher for use with hardened bearing surfaces. High-Alloy: Designed for use with Grade-5 & Grade-8 bolts and nuts. Stainless: For use with stainless nuts and screws of a similar stainless alloy in corrosive environments