3a thread class right-hand flush countersunk head style 0.505" grip length 28 thread quantity per inch 132000 single pounds per square inch shear strength nickel surface treated unjf thread series
3a thread class right-hand 1.317" grip length 32 thread quantity per inch 95000 single pounds per square inch shear strength cadmium surface treated unjc thread series
2a thread class right-hand 0.250" thread length round head style 40 thread quantity per inch navy special project passivate screw surface treated unc thread series
3a thread class right-hand flush countersunk head style 0.250" grip length 4010 double pounds per square inch shear strength cadmium surface treated unjc thread series
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.188" grip length ns" letters after the material code "b" indicate no preference to lock type (may be visible or internal) . rivets with no letter code (indicating visible lock type) chromate body surface treated
3b thread class right-hand flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.625" grip length 28 thread quantity per inch 125000 single pounds per square inch shear strength cadmium bolt surface treated unjf thread series
2a thread class right-hand 1.240" thread length hexagon head style 32 thread quantity per inch passivate surface treated concentric hole threaded unc thread series
3a thread class right-hand 0.306" thread length crowned hexagon head style 1.062" grip length 24 thread quantity per inch retaining element in shank passivate surface treated unjc thread series
3a thread class right-hand 0.306" thread length crowned hexagon head style 0.875" grip length 24 thread quantity per inch retaining element in shank passivate surface treated unjf thread series
3a thread class right-hand 0.277" thread length crowned hexagon head style 3.562" grip length 28 thread quantity per inch retaining element in shank passivate surface treated unjf thread series
3a thread class right-hand 0.277" thread length crowned hexagon head style 3.875" grip length 28 thread quantity per inch retaining element in shank passivate surface treated unjf thread series
3a thread class right-hand 0.277" thread length crowned hexagon head style 3.438" grip length 28 thread quantity per inch retaining element in shank passivate surface treated unjf thread series
3a thread class right-hand 0.277" thread length crowned hexagon head style 2.750" grip length 28 thread quantity per inch retaining element in shank passivate surface treated unjf thread series
3a thread class right-hand 0.277" thread length crowned hexagon head style 2.375" grip length 28 thread quantity per inch retaining element in shank passivate surface treated unjf thread series
3a thread class right-hand 0.277" thread length crowned hexagon head style 1.875" grip length 28 thread quantity per inch retaining element in shank passivate surface treated unjf thread series
3a thread class right-hand 0.277" thread length crowned hexagon head style 1.438" grip length 28 thread quantity per inch retaining element in shank passivate surface treated unjf thread series
2a thread class right-hand 0.750" thread length hexagon head style 0.062" hole diameter 20 thread quantity per inch cadmium surface treated unc thread series
2a thread class right-hand 0.378" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unc thread series
