Cap Nut Profile Extra Low Crown Material Grade/Class Not Graded Material Brass Finish Plain Thread Size 3/8 In.-16 Overall Height 0.5 in Hex Width 5/8 in Tensile Strength 55 000 psi Material Quality Standards ASTM B16 System of Measurement Inch Color Brass Pack Size Small Pack Rockwell Hardness B78 Thread Direction Right Hand Package Quantity 10