2a thread class right-hand 0.530" thread length flat countersunk head style 64 thread quantity per inch passivate screw surface treated unc thread series
Used on valve, globe. 2a thread class right-hand flat countersunk head style 20 thread quantity per inch part of logistic escape trunk fairing assembly unc thread series
Used on interim armored vehicle (iav),contractor logistics support (cls). right-hand 9.2mm thread length flat countersunk head style zinc screw surface treated m thread series
Used on f-22 acft; global hawk, rq-4a. 3a thread class right-hand 0.195" thread length pan head style 40 thread quantity per inch screw passivate screw surface treated unc thread series