2a thread class right-hand 1.500" thread length hexagon head style 20 thread quantity per inch zinc plated steel hex head cap screw zinc surface treated unc thread series
2a thread class right-hand 0.750" thread length hexagon head style 20 thread quantity per inch passivated stainless steel hex head cap screw mil spec MS35307-306 unc thread series
3a thread class right-hand 0.625" thread length flat chamfer head style 32 thread quantity per inch zinc plated alloy steel socket head cap screw unc thread series
Used on helicopter, attack. 3a thread class right-hand 0.849" thread length hexagon head style 2.875" grip length 18 thread quantity per inch bolt, self-retaining, impedance type cadmium surface treated unf thread series
Used on missile. 3a thread class right-hand 1.094" thread length hexagon head style 0.062" hole diameter 2.313" grip length 16 thread quantity per inch cadmium surface treated unf thread series
Used on missile. 3a thread class right-hand 1.094" thread length hexagon head style 1.688" grip length 16 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 1.089" thread length flat countersunk head style 20 thread quantity per inch self locking 18-8 stainless steel flat head cap screw unc thread series