Used on f/a-18 hornet. flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.563" grip length cadmium stem or passivate stem surface treated
Used on wld-1 maint d. 2a thread class right-hand 1.750" thread length flat countersunk head style 20 thread quantity per inch passivate screw surface treated unc thread series
Used on F-22. 3a thread class right-hand flush countersunk head style 0.683" grip length 28 thread quantity per inch rivet, blind b suffix indicates cross-lock feature phosphate surface treated unjf thread series
Used on 1270-01-508-1799. 3a thread class right-hand 0.750" thread length flat chamfer head style 40 thread quantity per inch passivate surface treated unc thread series