Split Lock Washer Lock Washer Type Split Lock Finish Plain Material Stainless Steel For Screw Size #3 Inside Diameter 0.107 in Outside Diameter 0.195 in Maximum Thickness 0.025 in Minimum Thickness 0.025 in Dimensional Standards ASME B18.21.1 Material Grade/Class 18-8 Pack Size Bulk Pack Rockwell Hardness C35 System of Measurement Inch Package Quantity 1000