Lock Nut Color Yellow Dimensional Standards ASME B18.16.6 Finish Zinc Yellow Hex Height 9/16 in Hex Type Standard Hex Top Lock Hex Width 1 11/16 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 C Material Quality Standards IFI 100/107 SAE J995 Maximum Temperature 500 Degrees F Minimum Temperature -20 Degrees F Pack Size Small Pack REACH Compliant No