Slotted Washer, Fits Bolt Size 1/2 in Steel, Black Oxide Finish
015 in.531 in, System of Measurement Inch, Thickness Tolerance +/-0.Slotted Washer, Color Black, Finish Black Oxide, Flat Washer Type Slotted Flat Washer, For Screw Size 1/2 in, Material Steel, Material Grade/Class Grade 5, Maximum Thickness 0.375 in, Minimum Thickness 0.