3a thread class right-hand flush countersunk head style 0.433" grip length 5380 double pounds per square inch shear strength powder blast top of head, with color black on thread end. unjf thread series
3a thread class right-hand flush countersunk head style 0.495" grip length 12260 double pounds per square inch shear strength light blue color identification on top of head. passivate surface treated unjf thread series
3a thread class right-hand 0.339" thread length flat countersunk head style 32 thread quantity per inch navy special project cadmium screw surface treated unjc thread series
2a thread class left-hand 0.560" thread length flat chamfer head style 28 thread quantity per inch hole in threads, 0.010 in. deep, to accommondate locking pellet. shank is undercut to 0.188 in. dia., 0.560 in. from underside of head to end of shank unf thread series
3a thread class right-hand 0.981" thread length flat countersunk head style 2.365" grip length 18 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.981" thread length flat countersunk head style 2.490" grip length 18 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.594" thread length flat countersunk head style 0.365" grip length 24 thread quantity per inch cadmium surface treated unjf thread series
