Lock Nut Finish Waxed Zinc Yellow Hex Height 35/64 in Hex Type Standard Hex Top Lock Hex Width 15/16 in Lock Type Top Lock Distorted Thread Material Steel Material Grade/Class Grade C Minimum Yield Strength 150 000 psi Pack Size Small Pack Rockwell Hardness RC 24/32 System of Measurement Inch Thread Direction Right Hand Thread Size 5/8 In.-11 Package Quantity 800