1a thread class right-hand 0.615" thread length hexagon head style 0.046" hole diameter 28 thread quantity per inch silver surface treated unf thread series
3a thread class right-hand 0.626" thread length flat chamfer head style 0.047" hole diameter 24 thread quantity per inch cadmium surface treated unc thread series
3a thread class right-hand 0.344" thread length flat chamfer head style 0.046" hole diameter 32 thread quantity per inch passivate surface treated unc thread series
3a thread class right-hand 0.250" thread length flat chamfer head style 0.036" hole diameter 32 thread quantity per inch cadmium surface treated unc thread series
3a thread class right-hand 0.375" thread length hexagon head style 40 thread quantity per inch w/1 drilled hole in head dichromate zinc surface treated unf thread series
3a thread class right-hand 0.219" thread length flat chamfer head style 40 thread quantity per inch thd portion eccentric, offset 0.023 in. below center chromate zinc surface treated unf thread series
3a thread class right-hand 0.188" thread length flat countersunk head style 56 thread quantity per inch navy special project zinc screw surface treated unf thread series
3a thread class right-hand 0.500" thread length flat chamfer head style 0.047" hole diameter 32 thread quantity per inch cadmium surface treated unc thread series
3a thread class right-hand 0.375" thread length flat chamfer head style 0.047" hole diameter 32 thread quantity per inch cadmium surface treated unc thread series
3a thread class right-hand 0.407" thread length flat chamfer head style 0.047" hole diameter 24 thread quantity per inch passivate surface treated unc thread series