Used on shaft,rudder, 2040-01-320-4124, part number 905 wmec 562-002 piece 1,aboard 270 ft wmec coast guard vessels. item is made of aluminum bronze, astm B150, copper alloy uns C63000
Used on b-2 pacer special. 3a thread class right-hand 1.722" thread length flat fillister head style 24 thread quantity per inch threaded shank with three cotter pin holes:first hole is 1.960" from top of bolt head:second hole is 1.820" from top of bolt head: third hole is 1.640" from top of head unc thread series