flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 26000 single pounds per square inch shear strength anodize or chromate surface treated
2a thread class right-hand 0.131" thread length flat countersunk undercut head style 40 thread quantity per inch oxide surface treated unc thread series
2a thread class right-hand 0.245" thread length hexagon head style 32 thread quantity per inch navy special project passivate screw surface treated unc thread series
3a thread class right-hand 2.000" thread length 10 thread quantity per inch plastic blue kel-f strip in threads locking features cadmium surface treated unc thread series
3a thread class right-hand 0.745" thread length 3.996" overall length 20 thread quantity per inch cadmium or zinc surface treated round, closed unjf thread series
3a thread class right-hand flush countersunk head style 1.005" grip length 28 thread quantity per inch 95000 single pounds per square inch shear strength unjf thread series
3a thread class right-hand 0.443" grip length 32 thread quantity per inch 108000 single pounds per square inch shear strength cadmium or cadmium surface treated unjc thread series
right-hand hexagon head style 0.157" grip length 4680 double pounds per square inch shear strength apply supplementary chromate treatment after bake; color of nut is blue cadmium body surface treated
3a thread class right-hand 0.281" thread length fillister countersunk head style 64 thread quantity per inch passivate surface treated unf thread series
