Lock Nut Finish Plain Hex Height 9/32 in Hex Type External Tooth Lock Washer Hex Width 1/2 in Lock Type Lock Nut with External Tooth Lock Washer Material Stainless Steel Material Grade/Class 18-8 Pack Size Small Pack Resistance Properties Impact Resistant Vibration Resistant Rockwell Hardness B95-C32 System of Measurement Inch Thread Direction Right Hand Thread Size 5/16 In.-18 Package Quantity 25