Cap Nut Material Grade/Class 316 Material Stainless Steel Finish Plain Thread Size 1/4 In.-20 Overall Height 0.469 in Hex Width 7/16 in Tensile Strength 75 000 psi Dimensional Standards SAE J483 Material Quality Standards AISI Grade 316 ASTM System of Measurement Inch Pack Size Small Pack Resistance Properties Corrosion Resistant Rockwell Hardness B80/90 Thread Direction Right Hand