Socket Flat Head Screw, Head Type Flat, System of Measurement Inch, Drive Type Socket, Drive Size 1/2 in, Material Steel, Finish Black Oxide, Thread Size 3/4 In.-16, Minimum Thread Length 2 in, Fastener Length 4 in, Head Height 0.75 in, Head Diameter 1.125 in, Pack Size Small Pack, Thread Style Partially Threaded, Special Features Not Applicable, Countersink Angle 82 Degrees , Dimensional Standards ASME B18.3, Flange Diameter Not Applicable, Flange Thickness Not Applicable