Lock Nut Finish Zinc Plated Material Steel Material Grade/Class Grade A Thread Size #10-24 Hex Width 3/8 in Hex Height 7/32 in Lock Type Serrated Dimensional Standards ASME B18.16.4 System of Measurement Inch Hex Type Flange Hex Thread Direction Right Hand Flange Diameter 0.5 in Pack Size Small Pack Package Quantity 100