Used on 2320-01-442-1940, truck,cbt,(command bridge transporter. 2a thread class right-hand 0.847" thread length flat countersunk head style 20 thread quantity per inch zinc screw surface treated unc thread series
3a thread class right-hand 0.316" thread length flat countersunk head style 56 thread quantity per inch cadmium screw surface treated unjc thread series