Machine Screw, Head Type Button, Material Steel, Finish Zinc-Plated, Drive Torx (R), Thread Size 1/4 In. -20, Fastener Length 2 1/2 in, Head Width 0.428 in, Head Height 0.127 in, Drive Size T27, Dimensional Standards ASME B 18.6. 3, Pack Size Small, Type Machine Screw, Maximum Head Width 27/64 in, Minimum Head Width Not Applicable, Maximum Head Height 1/8 in, Minimum Head Height Not Applicable, System of Measurement Inch, Thread Type Coarse, Package Quantity 25. This item has been restricted from sale in the following state (s): []