Back Home / Fasteners / Washers / LOCK WASHER SPLIT USS ZINC 5/8″ GR 5 LOCK WASHER SPLIT USS ZINC 5/8″ GR 5 SKU: LW58 Categories: Fasteners, Washers A coiled, hardened split circular washer with a slightly trapezoidal wire section. Applies greater bolt tension per unit of applied torque. Provides a hardened bearing surface and more uniform load distribution. Steel, zinc plated. Resists loosening caused by vibration and corrosion. Designed for use with grade 5 bolts. Rockwell Hardness: C38-46 Inside Diameter: Min .628 Max .641 Outside Diameter: 1.073 Case Quantity: 50 Log In For Pricing