Split Lock Washer Lock Washer Type Split Lock Finish Plain Material Stainless Steel For Screw Size #12 Inside Diameter 0.22 in Outside Diameter 0.377 in Maximum Thickness 0.056 in Minimum Thickness 0.056 in Color Silver Dimensional Standards ASME B18.21.1 Inside Diameter Tolerance 0.220 in to 0.227 in Made in North America No Manufacturer Location Globally Sourced Material Grade/Class 18-8 Material Quality Standards SAE J405 Maximum Temperature Not Applicable