2a thread class right-hand 0.250" thread length round w/wrench flats head style 32 thread quantity per inch passivate surface treated unc thread series
2a thread class right-hand 0.245" thread length button head style 32 thread quantity per inch thread relieved groove 0.060 w passivate surface treated unc thread series
2a thread class right-hand 0.205" thread length hexagon head style 40 thread quantity per inch head drilled passivate surface treated unc thread series
2a thread class right-hand 0.563" thread length flat chamfer head style 24 thread quantity per inch navy special project passivate surface treated unc thread series
2a thread class right-hand 0.281" thread length 32 thread quantity per inch head painted red 580-0020-00 13499 paint head surface treated unc thread series
3a thread class right-hand 0.813" thread length 32 thread quantity per inch undercut beneath head 0.025 in. radius; dia is 0.189 in.; the grip length 0.250 in. to full threads uns thread series
Used on m109a2 sp,m109a3 sp,m146 mt tel,m109a4 sp,m109a3. 2a thread class right-hand 0.750" thread length fillister head style 16 thread quantity per inch unc thread series