Split Lock Washer Lock Washer Type Split Lock Finish Plain Material Stainless Steel For Screw Size 1/2 in Inside Diameter 0.502 in Outside Diameter 0.869 in Maximum Thickness Not Applicable Minimum Thickness 0.125 in Color Silver Dimensional Standards ASME B18.21.1 Inside Diameter Tolerance +0.010 in Made in North America No Manufacturer Location Globally Sourced Material Grade/Class 18-8 Maximum Temperature 302 Degrees F Minimum Temperature -58 Degrees F