3b thread class 28 thread quantity per inch hole, 0.115 in. min, 0.135 in. max dia; distance from hole center to top of insert, 0.097 in. min, 0.109 in. max passivate surface treated plain unf thread series
3b thread class right-hand 1.150" thread length 10 thread quantity per inch has internal thread lock passivate surface treated keylock unjc thread series