2a thread class right-hand 0.231" thread length flat countersunk head style 40 thread quantity per inch passivate screw surface treated unc thread series
2a thread class right-hand 0.347" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated unc thread series
Used on mrap buffalo mk2a2. 2a thread class right-hand 0.250" thread length pan no. 2 head style 32 thread quantity per inch zinc screw surface treated unf thread series
3a thread class right-hand 0.401" thread length flat countersunk head style 28 thread quantity per inch cadmium screw surface treated unjf thread series
3a thread class right-hand 0.314" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unjc thread series