Thumb Screw Grip Style Knurled Type Thumb Screw Finish Plain Material Nylon Thread Size 1/4 In.-20 Fastener Length 3/4 in Thread Style Fully Threaded Thread Length 3/4 in Head Width 0.54 in Head Height 0.365 in Tensile Strength 296 psi Head Type Knurled Maximum Head Height 0.365 in Minimum Head Height 0.365 in System of Measurement Inch Head Material Nylon Head Shape Round Package Quantity 10