2a thread class right-hand 0.258" thread length flat countersunk head style 20 thread quantity per inch screw has cadmium plated steel core unc thread series
3a thread class right-hand 1.475" thread length bevel-conical head style 0.050" hole diameter 12 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.313" thread length undercut hexagon head style 0.302" grip length 32 thread quantity per inch button type element in threads for locking feature unf thread series
2a thread class right-hand 0.375" thread length hexagon head style 32 thread quantity per inch cone point 90 deg passivate surface treated unf thread series
3a thread class right-hand 0.306" thread length flat chamfer head style 0.875" grip length 24 thread quantity per inch navy special project passivate surface treated unjf thread series
3a thread class right-hand 0.313" thread length flat countersunk head style 0.302" grip length 32 thread quantity per inch navy special project internal drive ribbed cadmium surface treated unf thread series
2a thread class right-hand 1.062" thread length hexagon head style 11 thread quantity per inch shoulder undercut 0.849 in. max dia by 0.064 in max w unc thread series
1a thread class right-hand 0.438" thread length flat chamfer head style 0.046" hole diameter 32 thread quantity per inch cadmium surface treated unf thread series