Square Washer, Type Square, Material Steel, Material Grade/Class Grade 2, Finish Zinc Plated, For Screw Size 3/4 in, Inside Diameter 0.813 in, Square Width 2 in, Maximum Thickness 0.128 in, System of Measurement Inch, Minimum Thickness 0.112 in, Pack Size Small Pack, Thickness Tolerance +/-0.031 in