Back Home / Fasteners / LOCKWASHER SPLIT METRIC ZINC , M20 LOCKWASHER SPLIT METRIC ZINC , M20 SKU: XLW20M Category: Fasteners 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. For use with metric bolts and screws. Rockwell Hardness: C44-51 Inside Diameter: M20 Case Quantity: 25 Log In For Pricing