Used on b1-b aircraft. 3a thread class right-hand flush countersunk head style 0.4375" grip length 24 thread quantity per inch 23200 double pounds per square inch shear strength pin-rivet threaded passivate surface treated unjf thread series
Used on mcm cldg rack. 2a thread class right-hand 0.500" thread length truss head style 32 thread quantity per inch oxide screw surface treated washer is made of nylon unf thread series
Used on landing gear. 3a thread class right-hand 0.398" thread length oval countersunk head style 0.266" grip length 28 thread quantity per inch aluminum surface treated unjf thread series