Thumb Nut Head Shape Round Finish Plain Material Grade/Class 18-8 Material Stainless Steel Thread Size #2-56 Overall Height 1/4 in Head Height 1/8 in Head Diameter 1/4 in Base Height 1/8 in Base Diameter 3/16 in Thread Length 1/4 in System of Measurement Inch Thread Direction Right Hand Material Quality Standards ASTM 581/582 Pack Size Small Pack Package Quantity 5