468 in, Pack Size Small Pack, Thread Style Partially Threaded, Special Features Not Applicable, Countersink Angle Not Applicable, Dimensional Standards AMPG 2013 ZPS.-18, Minimum Thread Length 1/2 in, Fastener Length 4 1/8 in, Head Height 0.375 in, Head Diameter 0.01, Flange Diameter 11/16 in.