Thumb Screw Grip Style Knurled Type Thumb Screw Finish Plain Material Nylon Thread Size 3/8 In.-16 Fastener Length 1 1/2 in Thread Style Fully Threaded Thread Length 1 1/2 in Head Width 0.687 in Head Height 0.43 in Tensile Strength 480 psi Head Type Knurled Maximum Head Height 0.43 in Minimum Head Height 0.43 in System of Measurement Inch Head Material Nylon Head Shape Round Package Quantity 5