3b thread class right-hand 16 thread quantity per inch 1.037 in. h; 0.312 in. w of knurl; 1.875 in. od; 1.147 in. dia. of small end cadmium surface treated
2b thread class right-hand 18 thread quantity per inch navy special project 2 drive points in top of nut, 180 deg apart, 0.230-0.270 in. w x 0.200 in. deep anodize surface treated