Used on w/s:aircraft, hornet f/a-18. 3a thread class right-hand 0.443" grip length 32 thread quantity per inch 95000 single pounds per square inch shear strength unjf thread series
3a thread class right-hand flush countersunk head style 0.302" grip length 24 thread quantity per inch 125000 single pounds per square inch shear strength unjf thread series
3a thread class right-hand 0.429" thread length dished hexagon head style 1.928" grip length 24 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.376" grip length 32 thread quantity per inch 156000 single pounds per square inch shear strength nickel surface treated unjf thread series