Socket Button Head Screw Head Type Button System of Measurement Inch Drive Type Hex Material Stainless Steel Material Grade/Class 316 Finish Plain Thread Size 1/4 In.-20 Minimum Thread Length 2 3/4 in Fastener Length 2 3/4 in Head Height 0.132 in Head Diameter 0.437 in Pack Size Small Pack Thread Style Fully Threaded Special Features Not Applicable Countersink Angle Not Applicable Flange Diameter Not Applicable Flange Thickness Not Applicable