3a thread class right-hand 0.626" thread length undercut hexagon head style 1.875" grip length 18 thread quantity per inch supplied with undrilled shank cadmium surface treated unjf thread series
Used on F-15I. 3a thread class right-hand 0.467" thread length double hexagon head style 1.602" grip length 24 thread quantity per inch passivate surface treated unjf thread series
2a thread class right-hand headless (setscrew) head style 40 thread quantity per inch 0.260 in.wrenching flats; 0.124 in. dia thru hole; 0.062 in dia thru perpendicular to the axis, 0.440 in. distance from end opposite wrenching flats passivate surface treated uns thread series