Split Lock Washer Lock Washer Type Split Lock Finish Plain Material Stainless Steel For Screw Size 1 1/4 in Inside Diameter 1.254 in Outside Diameter 2.036 in Maximum Thickness 0.312 in Minimum Thickness 0.312 in Dimensional Standards ASME B18.21.1 Material Grade/Class 18-8 Pack Size Small Pack Rockwell Hardness C35 Package Quantity 5