5/16″ Flat Washer by X1 Tools (1 to 250 Washers)

5/16″ Flat Washer by X1 Tools X1 Flat washers act as a flat surface area for nut or bolt to tighten against. Protect surfaces by evenly distributing torque when a bolt or screw is tightened. Features:Zinc plated for corrosion resistanceUsed to distribute fastener pressure evenlyInside Diameter: 0.31″Outside Diameter: 0.62″Thickness: 0.04″