Split Lock Washer, Finish Zinc Plated, Material Steel, For Screw Size #6, Inside Diameter 0.141 in, Outside Diameter 0.266 in, Maximum Thickness 0.04 in, Minimum Thickness 0.04 in, Dimensional Standards ASME B18.21.1, Material Grade/Class Not Graded, Pack Size Small Pack, Rockwell Hardness C40 to C50, Package Quantity 100