Used on b1-b aircraft. right-hand flat countersunk head style bolt-close tolerance, 100 degree reduced 21 head, torq set boeing spec controlled LE111-0038-0406
Used on f/a-18 e/f. 3a thread class right-hand 0.614" thread length double hexagon extended washer head style 24 thread quantity per inch bolt 12 point unjf thread series