Socket Set Screw, Head Type Headless, Point Type Knurled Cup, System of Measurement Inch, Thread Size 1/4 In.-20, Overall Length 3/8 in, Drive Type Socket, Drive Size 1/8 in, Material Alloy Steel, Finish Black Oxide, Pack Size Small Pack, Decimal Equivalent 0.25 in, Dimensional Standards ASME B18.3, Head Height Not Applicable, Head Width -, Maximum Head Height Not Applicable, Minimum Head Height Not Applicable, Package Quantity 100