Lock Nut Finish Phosphate and Oil Material Steel Material Grade/Class Grade 8 Thread Size 1/2 In.-13 Hex Width 3/4 in Hex Height 29/64 in Lock Type Serrated Material Quality Standards SAE J995 System of Measurement Inch Hex Type Flange Hex Thread Direction Right Hand Color Silver Flange Diameter 1.031 in Flange Thickness 0.05 in Insert Material Steel Made in North America No Manufacturer Location Globally Sourced Pack Size Small Pack REACH Compliant Yes Removable Yes