Lock Nut Color Silver Dimensional Standards ASME B18.16.6 Finish Plain Hex Height 7/16 in Hex Type Standard Hex Top Lock Hex Width 1 5/16 in Insert Material Steel Lock Type Top Lock Distorted Thread Made in North America No Manufacturer Location Globally Sourced Material Stainless Steel Material Grade/Class 18-8 Material Quality Standards ASTM F594 SAE J995 Maximum Temperature 1 000 Degrees F Minimum Temperature -40 Degrees F Pack Size Small Pack REACH Compliant Yes