Thumb Screw Type P Type Thumb Screw Finish Plain Material 18-8 Stainless Steel Thread Size 5/16 In.-18 Fastener Length 1 in Head Width 0.875 in Head Height 0.688 in Tensile Strength - Head Type Spade Maximum Head Height 0.688 in System of Measurement Inch Head Material 18-8 Stainless Steel Head Shape Spade Package Quantity 5