2b thread class right-hand 40 thread quantity per inch knurled boss, 0.030 in. min, 0.035 in. max lg, 0.201 in. dia; 0.175 in. lg csk passivate surface treated
2b thread class right-hand 40 thread quantity per inch first end undercut to 0.187 in. dia.x 0.060 in lg; second end 0.180 in. dia.x 0.013 in. lg tin surface treated