3a thread class right-hand 0.425" thread length flat countersunk head style 28 thread quantity per inch passivate screw surface treated unjf thread series
3a thread class right-hand 0.425" thread length dished hexagon head style 1.052" grip length 28 thread quantity per inch cadmium surface treated unjf thread series
Used on F-22. 3a thread class right-hand 0.495" thread length spline extended washer head style 0.553" grip length 28 thread quantity per inch bolt, tension, nickel alloy 718, 220ksi ftu, external wrenching, spline drive, flanged head dry film lubricant per mil-l-46010, type i passivate surface treated unjf thread series
Used on F-22. 3a thread class right-hand 0.408" thread length spline extended washer head style 0.990" grip length 32 thread quantity per inch bolt, tension, nickel alloy 718, 220ksi ftu, external wrenching, spline drive, flanged head dry film lubricant per mil-l-46010, type i unjf thread series