Lock Nut Color Silver Dimensional Standards ASME B18.16.6 Finish Zinc Plated Hex Height 1/8 in Hex Type Flange Hex Top Lock Hex Width 11/32 in Insert Material Steel Lock Type Top Lock Distorted Thread Made in North America No Manufacturer Location Globally Sourced Material Steel Material Grade/Class Grade A Material Quality Standards IFI 100/107 SAE J995 Maximum Temperature 500 Degrees F Minimum Temperature -20 Degrees F Pack Size Small Pack REACH Compliant Yes Removable Yes