2b thread class right-hand 20 thread quantity per inch 2 csk holes, 0.250 in. dia to 0.390 in. dia, 100 degrees; located on surface of plate passivate surface treated
3b thread class right-hand 71.940" overall length 0.474" overall width 32 thread quantity per inch navy special project channel matl alclad anodize channel surface treated
3b thread class right-hand 71.940" overall length 0.474" overall width 32 thread quantity per inch navy special project channel matl alclad anodize channel surface treated