Lock Nut Finish Zinc Plated Material Steel Material Grade/Class Grade A Thread Size 3/8 In.-16 Hex Width 9/16 in Hex Height 11/32 in Lock Type Serrated Dimensional Standards ASME B18.16.4 System of Measurement Inch Hex Type Flange Hex Thread Direction Right Hand Flange Diameter 0.75 in Pack Size Small Pack Package Quantity 100