2a thread class right-hand 0.178" thread length flat countersunk head style 32 thread quantity per inch color of paint olive drab cadmium surface treated unc thread series
3a thread class right-hand 0.418" thread length crowned hexagon head style 6.938" grip length 28 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.320" thread length flat chamfer head style 32 thread quantity per inch groove in shoulder 0.220 in. min, 0.230 in. max dia. located 0.895 in. in from thread end passivate surface treated unjf thread series
2a thread class right-hand 0.178" thread length flat countersunk head style 56 thread quantity per inch passivate screw surface treated unc thread series
2a thread class right-hand 1.810" thread length flat chamfer head style 40 thread quantity per inch passivate screw surface treated internal drive style may be slotted or cross recessed unc thread series
2a thread class right-hand 2.750" thread length hexagon head style 13 thread quantity per inch unthreaded area of shank 0.060 in. length unc thread series
3a thread class right-hand 0.616" thread length flat countersunk head style 1.365" grip length 24 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.616" thread length flat countersunk head style 0.678" grip length 24 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.337" thread length flat countersunk head style 0.115" grip length 32 thread quantity per inch passivate surface treated unjf thread series
2a thread class right-hand 0.433" thread length flat countersunk head style 40 thread quantity per inch passivate screw surface treated unc thread series
2a thread class right-hand 0.438" thread length flat countersunk head style 56 thread quantity per inch oxide film or cadmium screw surface treated unc thread series
3a thread class right-hand 0.750" thread length hexagon head style 0.060" hole diameter 0.128" grip length 28 thread quantity per inch unjf thread series