3a thread class right-hand 0.782" thread length hexagon head style 1.546" grip length 20 thread quantity per inch thread is a safety critical thread per mil-s-7742 under application category safety critical. apply one coat of mil-p-23377, ty 1, cl 1 or 3 cadmium surface treated unf thread series
3a thread class right-hand 0.359" thread length hexagon head style 1.500" grip length 24 thread quantity per inch safety critical item. apply one coat of mil-p-23377, ty 1, cl 1 or 3 cadmium surface treated unjf thread series
3a thread class right-hand 0.609" thread length hexagon head style 1.296" grip length 24 thread quantity per inch passivate surface treated unf thread series
2a thread class right-hand 0.187" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated color is dark blue unc thread series
2a nut thread a thread class right-hand nut thread a 1.750" nut thread a thread length 7 nut thread a thread quantity per inch navy special project dia. of unthreaded portion 1.6235-1.6250 in.; threaded shoulder 2.250 in. dia, 3t.p.i. acme thd. double lead; pointed on stud end 1.750 in. lg 0.997 in. dia; cotter pin hole on nut end 0.203 unc nut thread a thread series
3a thread class right-hand 0.567" grip length 28 thread quantity per inch 156000 single pounds per square inch shear strength cadmium surface treated unjf thread series
3a thread class right-hand 0.500" grip length 28 thread quantity per inch 156000 single pounds per square inch shear strength cadmium surface treated unjf thread series
3a thread class right-hand 0.750" grip length 28 thread quantity per inch 156000 single pounds per square inch shear strength cadmium surface treated unjf thread series
3a thread class right-hand 1.817" grip length 24 thread quantity per inch 125000 single pounds per square inch shear strength cadmium surface treated unjf thread series
Used on c-5 aircraft. 3a thread class right-hand 1.755" grip length 24 thread quantity per inch 125000 single pounds per square inch shear strength cadmium surface treated unjf thread series
3a thread class right-hand 1.505" grip length 24 thread quantity per inch 125000 single pounds per square inch shear strength cadmium surface treated unjf thread series
3a thread class right-hand 1.443" grip length 24 thread quantity per inch 125000 single pounds per square inch shear strength cadmium surface treated unjf thread series
3a thread class right-hand 0.817" grip length 32 thread quantity per inch 95000 single pounds per square inch shear strength threads are color coded black aluminum surface treated unjf thread series
3a thread class right-hand flush countersunk head style 1.130" grip length 28 thread quantity per inch 125000 single pounds per square inch shear strength red identification on top of head cadmium surface treated unjf thread series
