3a thread class right-hand 0.375" thread length headless (setscrew) head style 40 thread quantity per inch navy special project passivate surface treated unc thread series
2a thread class right-hand 0.194" thread length flat countersunk undercut head style 36 thread quantity per inch cadmium screw surface treated unf thread series
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.250" grip length 388 single pounds per square inch shear strength anodize surface treated
3a thread class right-hand 0.750" thread length flat chamfer head style 0.062" hole diameter 28 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.270" thread length flat chamfer head style 0.037" hole diameter 40 thread quantity per inch passivate surface treated unc thread series
3a nut thread thread class right-hand nut thread 0.750" nut thread thread length 2.750" overall length 24 nut thread thread quantity per inch 0.2819 in. min pitch dia first thread, 0.2839 in. max pitch dia first two threads cadmium surface treated unf nut thread thread series