2a thread class right-hand 1.000" thread length hexagon head style 0.625" grip length 18 thread quantity per inch cadmium surface treated unf thread series
2a thread class right-hand 1.316" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unc thread series
2a thread class right-hand 0.438" thread length fillister head style 0.046" hole diameter 32 thread quantity per inch passivate screw surface treated requires environmental test in accordance w/special projects fleet ballistic missile plan op 2747 unc thread series
2a thread class right-hand 0.510" thread length fillister head style 24 thread quantity per inch undercut under head 1/32 in. w 1/4 in. dia at base of undercut unf thread series
2a thread class right-hand 2.490" thread length hexagon head style 20 thread quantity per inch groove in shank 2.689 in. min, 2.719 in. max from top of head, 0.252 in. min, 0.254 in. max w by 0.365 in. min, 0.370 in. max dia unf thread series