Thread Forming Screw, Head Type Pan, Finish Zinc-Plated, Material Steel, Screw Size 1/4 in, Fastener Length 1 in, Head Width 0.492 in, Head Height 0.175 in, Drive Size T30, Dimensional Standards ASME B18.6.3, SAE J933, Pack Size Small, Minimum Head Height Not Applicable, Minimum Head Width Not Applicable, Maximum Head Height 11/64 in, Maximum Head Width 31/64 in, System of Measurement Inch, Drive Torx Plus(R), Package Quantity 50