Lock Nut Finish Waxed Zinc Yellow Hex Height 49/64 in Hex Type Standard Hex Top Lock Hex Width 1 5/16 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 26/34 System of Measurement Inch Thread Direction Right Hand Thread Size 7/8 In.-9 Package Quantity 10