3a thread class right-hand 0.320" thread length flat countersunk head style 24 thread quantity per inch concentric threaded hole on head end, 0.250-28 unjf-3b x 0.418 in. deep cadmium surface treated unjf thread series
3a thread class right-hand 0.845" thread length flat chamfer head style 0.062" hole diameter 11 thread quantity per inch navy special project zinc surface treated unc thread series
2a thread class right-hand 0.337" thread length flat chamfer head style 16 thread quantity per inch navy special project grove between shoulder cadmium surface treated unc thread series
2a thread class left-hand 5.780" thread length spade head style 20 thread quantity per inch ssolid film lubricant on threads paint first shoulder surface treated unf thread series
2a thread class right-hand 0.155" thread length flat chamfer head style 32 thread quantity per inch thread relief undercut 0.140 in. dia; 0.055 in. lg; surface finish on shoulder passivate surface treated unf thread series
2a thread class right-hand 0.327" thread length hexagon head style 56 thread quantity per inch relief 0.180-0.182 in. lg; 0.074-0.076 in. dia unc thread series
3a thread class right-hand 0.532" thread length flat chamfer head style 16 thread quantity per inch furnished with undercut 0.093 nom. in. wide to root dia. zinc surface treated unc thread series
3a thread class right-hand 0.380" thread length flat countersunk undercut head style 32 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.820" thread length flat chamfer head style 10 thread quantity per inch plain or knurl head; neck between shoulder cadmium surface treated unc thread series
Used on box beam,f-16a/b acft. 3a thread class right-hand 0.363" thread length flat countersunk head style 32 thread quantity per inch cadmium surface treated unjf thread series
