Lock Washer Lock Washer Type External Tooth Lock Finish Plain Material Stainless Steel For Screw Size #3 Inside Diameter 0.102 in Outside Diameter 0.23 in Maximum Thickness 0.013 in Color Silver Dimensional Standards ASME B18.21.1 For Use With - Material Grade/Class 316 Pack Size Small Pack Rockwell Hardness B85 System of Measurement Inch Thickness Tolerance 0.016 in to 0.010 in Package Quantity 50