3a thread class right-hand 0.187" thread length headless (setscrew) head style 56 thread quantity per inch cadmium or zinc surface treated unc thread series
2a thread class right-hand 0.470" thread length hexagon head style 24 thread quantity per inch navy special project passivate surface treated unf thread series
3a thread class right-hand 0.534" thread length flat chamfer head style 0.062" hole diameter 28 thread quantity per inch oxide surface treated unf thread series
2a thread class right-hand 0.469" thread length flat countersunk head style 20 thread quantity per inch passivate screw surface treated unc thread series
2a thread class right-hand 1.000" thread length pan no. 2 head style 32 thread quantity per inch passivate screw surface treated 1 silicon rubber o-ring recessed in bearing surface of head unc thread series
2a thread class right-hand 0.500" thread length pan head style 32 thread quantity per inch passivate screw surface treated furnished w/one silicone rubber o-ring recessed in bearing surface of head, 0.265 in. od of groove unc thread series
2a thread class right-hand 1.167" thread length fillister head style 0.046" hole diameter 24 thread quantity per inch cadmium screw surface treated unc thread series
2a thread class right-hand 0.875" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated unc thread series