Lock Nut Finish Zinc Plated Hex Height 25/64 in Hex Type External Tooth Lock Washer Hex Width 9/16 in Lock Type Lock Nut with External Tooth Lock Washer Material Steel Material Grade/Class Grade 2 Pack Size Small Pack Rockwell Hardness - System of Measurement Inch Thread Direction Right Hand Thread Size 3/8 In.-24 Package Quantity 100