2a thread class right-hand 0.077" thread length flat countersunk head style 40 thread quantity per inch passivate screw surface treated unc thread series
3a thread class right-hand 2.750" thread length 9 thread quantity per inch strip type or patch type or pellet type element in threads cadmium surface treated unc thread series
2a thread class right-hand 0.102" thread length flat countersunk undercut head style 28 thread quantity per inch passivate screw surface treated unf thread series
3a thread class right-hand 0.423" thread length flat countersunk head style 28 thread quantity per inch cadmium screw surface treated unjf thread series
3a thread class right-hand 0.401" thread length flat countersunk head style 28 thread quantity per inch cadmium screw surface treated unjf thread series
3a thread class right-hand 0.401" thread length flat countersunk head style 28 thread quantity per inch cadmium screw surface treated unjf thread series
3a thread class right-hand 0.401" thread length flat countersunk head style 28 thread quantity per inch cadmium screw surface treated unjf thread series
2a nut thread thread class right-hand nut thread 1.000" stud thread thread length 8.720" overall length 13 stud thread thread quantity per inch strip type locking element in nut end threads passivate surface treated unc stud thread thread series