2a thread class right-hand 0.250" thread length pan no. 2 head style 32 thread quantity per inch navy special project passivate surface treated unc thread series
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.126" grip length 550 single pounds per square inch shear strength
3a thread class right-hand 0.544" thread length hexagon head style 0.750" grip length 28 thread quantity per inch passivate surface treated unf thread series
3a thread class right-hand 0.544" thread length hexagon head style 0.625" grip length 28 thread quantity per inch passivate surface treated unf thread series
3a thread class right-hand 0.547" thread length bevel-conical head style 24 thread quantity per inch 6drilled holes cadmium surface treated unf thread series
3a thread class right-hand 0.687" thread length bevel-conical head style 0.055" hole diameter 24 thread quantity per inch cadmium surface treated unf thread series