3a thread class right-hand 1.448" thread length spline drive shear head head style 24 thread quantity per inch passivate surface treated unf thread series
2a thread class right-hand 0.750" thread length pan no. 2 head style 20 thread quantity per inch cadmium or zinc screw surface treated unc thread series
3a thread class right-hand 0.694" thread length hexagon head style 0.070" hole diameter 0.740" grip length 20 thread quantity per inch navy special project cadmium surface treated unjf thread series
3a thread class right-hand 0.397" thread length spline drive shear head head style 0.740" grip length 28 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.323" thread length dished hexagon head style 2.178" grip length 32 thread quantity per inch cadmium or chromate surface treated unf thread series
2a thread class right-hand 0.318" thread length round with wrench flats head style 32 thread quantity per inch oxide screw surface treated unc thread series