3a thread class right-hand 0.554" thread length pan no. 2 head style 56 thread quantity per inch navy special project cadmium screw surface treated unjc thread series
2a thread class right-hand 0.320" thread length pan no. 2 head style 32 thread quantity per inch color black dichromate sodium surface treated unc thread series
2a thread class right-hand 0.250" thread length flat countersunk head style 32 thread quantity per inch anodize stand-off surface treated unc thread series
3a thread class right-hand 0.345" thread length dished hexagon head style 2.365" grip length 28 thread quantity per inch cadmium surface treated unjf thread series
right-hand 0.617" thread length double hexagon head style 0.438" grip length 24 thread quantity per inch asymmetric threads cadmium surface treated uns thread series
