3a thread class right-hand 0.757" thread length hexagon head style 0.070" hole diameter 0.088" grip length 24 thread quantity per inch unjf thread series
2a thread class right-hand 0.400" thread length hexagon countersunk head style 28 thread quantity per inch zinc or cadmium surface treated unf thread series
3a thread class right-hand 0.287" thread length crowned hexagon head style 6.000" grip length 28 thread quantity per inch navy special project passivate fastener surface treated unjf thread series
2a thread class right-hand 1.250" thread length hexagon head style 0.092" hole diameter 20 thread quantity per inch cadmium surface treated unf thread series
2a thread class right-hand 0.875" thread length flat chamfer head style 32 thread quantity per inch passivate fastener surface treated unf thread series