Thumb Screw, Grip Style Smooth, Type Thumb Screw, Finish Zinc Plated, Material Iron, Thread Size 1/2 In.-13, Fastener Length 2 in, Thread Style Fully Threaded, Thread Length 2 in, Head Width 2.25 in, Head Height 1 in, Tensile Strength 50,000 psi, Head Type Wing, Maximum Head Height 1 in, System of Measurement Inch, Head Material Iron, Head Shape Wing, Package Quantity 25