3a thread class right-hand 0.235" thread length fillister head style 32 thread quantity per inch chromate stand-offpassivate fastener surface treated unc thread series
2a thread class right-hand 0.188" thread length flat chamfer head style 0.024" hole diameter 56 thread quantity per inch cadmium surface treated unc thread series
3a thread class right-hand 0.689" grip length 32 thread quantity per inch 108000 single pounds per square inch shear strength cadmium surface treated unjf thread series
2a thread class right-hand 0.919" thread length pan no. 2 head style 40 thread quantity per inch cadmium screw surface treated color clear to light blue chromate conversion coating unc thread series
Used on helicopter observation (ahip), oh-58d; aircraft, b-2 bomber (atb); aircraft, ac-130h, mc-130h, ec-130e, hc-130; aircraft, phantom f-4; aircraft, airlifter c-17a; support equipment, b-1 aircraft; aircraft mh-47e; support equipment (se), b-2 bomber; f/a-18e/f hornet aircraft; missle, vehicle mounter stinger (avenger). flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.376" 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 sleeve surface treated
