Split Lock Washer Lock Washer Type Split Lock Finish Zinc Plated Material Steel For Screw Size 1 3/8 in Inside Diameter 1.379 in Outside Diameter 2.219 in Maximum Thickness 0.344 in Minimum Thickness 0.344 in Color Silver Dimensional Standards ASME B18.21.1 Inside Diameter Tolerance 1.379 in to 1.408 in Made in North America No Manufacturer Location Globally Sourced Material Grade/Class Grade 2 Maximum Temperature Not Applicable Minimum Temperature Not Applicable