Thumb Screw, Type Thumb Screw, Finish Plain, Material Stainless Steel, Thread Size 1/4-20, Fastener Length 1 1/4 in, Thread Length Not Applicable, Head Width 0.516 in, Head Height 0.594 in, Tensile Strength Not Applicable, Head Type Spade, Maximum Head Width 33/64 in, Minimum Head Width Not Applicable, Maximum Head Height 19/32 in, Minimum Head Height Not Applicable, System of Measurement Inch, Dimensional Standards ASME B 18.6. 8 2010, Drive Not Applicable, Head Material Stainless Steel. This item has been restricted from sale in the following state (s): []