Used on scuttle marine 12 inch scuttle marine 21 inch and scuttle marine 25 inch. 3a thread class right-hand 16 thread quantity per inch screw machine material is brass unc thread series
Used on mrap buffalo mk2a2. 2a thread class right-hand 0.500" thread length pan head style 32 thread quantity per inch zinc plated steel pan head phillips machine screw zinc screw surface treated unc thread series
2a thread class right-hand 1.500" thread length round head style 20 thread quantity per inch round head machine screw zinc screw surface treated unc thread series