Flat Washer, For Screw Size #4 ,Steel Black Oxide Finish, 25 PK

Flat Washer, Flat Washer Type Standard, Dimensional Standards AMPG 2001 FL.01, Material Steel, Material Grade/Class Case Hardened, Finish Black Oxide, For Screw Size #4, Inside Diameter 0.125 in, Outside Diameter 5/16 in, Maximum Thickness 5/64 in, System of Measurement Inch, Minimum Thickness 5/64 in, Color Black, Inside Diameter Tolerance +/-0.010 in, Material Quality Standards ASTM A108, Outside Diameter Tolerance +/-0.010 in, Pack Size Small Pack, Rockwell Hardness C4