Thumb Screw, Grip Style Knurled, Type Thumb Screw, Finish Plain, Material 18-8 Stainless Steel, Thread Size 1/4 In.-28, Fastener Length 1 1/8 in, Thread Style Fully Threaded, Thread Length 1/2 in, Head Width 1 in, Head Height 0.25 in, Tensile Strength 90,000 psi, Head Type Knurled, Maximum Head Height 0.25 in, System of Measurement Inch, Features Straight Knurl, For Use in Systems Jig and Fixture Component, Head Material 18-8 Stainless Steel, Head Shape Round