Machine Screw, Head Type Flat, Material Steel, Finish Zinc Plated, Drive Torx, Thread Size 1/4 In.-20, Fastener Length 3/4 in, Head Width 0.507 in, Head Height 0.153 in, Drive Size T27, Dimensional Standards ASME B18.6.3, Pack Size Small, Type Standard Machine Screw, Washer Thickness -, System of Measurement Inch, Thread Type Coarse, Package Quantity 100