Cap Nut Material Grade/Class 18-8 Material Stainless Steel Finish Plain Thread Size #4-40 Overall Height 0.25 in Hex Width 1/4 in Tensile Strength 85 000 psi Dimensional Standards SAE J483 Material Quality Standards AISI Grade 303 ASTM System of Measurement Inch Pack Size Small Pack Removable Yes Resistance Properties Corrosion Resistant Rockwell Hardness B83 to B95 Thread Direction Right Hand Package Quantity 25