Used on an/alq-99e(v). 2b thread class right-hand 0.250" thread length 28 thread quantity per inch 0.276 in. distance between wrenching flats passivate surface treated
2b thread class right-hand 0.250" thread length 40 thread quantity per inch 0.062 in. thk by 0.295 in. dia flange on opposite thd end anodize surface treated
2b thread class right-hand 0.250" thread length 32 thread quantity per inch slotted internal drive 0.078 in. length, 0.060 in. width opposite thread end oxide film surface treated