Socket Head Cap Screw Head Type Standard System of Measurement Inch Drive Type Socket Drive Size 5/16 in Material Nylon Material Grade/Class Not Graded Finish Plain Thread Size 3/8 In.-16 Minimum Thread Length 1 1/4 in Fastener Length 1 1/4 in Head Height 0.371 in Head Diameter 0.562 in Pack Size Small Pack Thread Style Partially Threaded Special Features Not Applicable Countersink Angle Not Applicable Flange Diameter Not Applicable Flange Thickness Not Applicable