Lock Nut Finish Zinc Plated Material Steel Material Grade/Class Grade A Thread Size #6-32 Hex Width 5/16 in Hex Height 11/64 in Lock Type Serrated Dimensional Standards ASME B18.16.4 System of Measurement Inch Hex Type Flange Hex Thread Direction Right Hand Flange Diameter 0.422 in Pack Size Small Pack Package Quantity 100