Thread Standards Tameson Com
Solid bushing, self locking, positive placement repair Thread repair kit for 1/418 pipe P/N 0118TAN1 = 0375 ÷ 12 = 179˚ Note The tangent of 179˚ is , an easy number to remember Also it is helpful to remember that the American, British and metric pipe taper angles are all the same, 179 degrees Knowing the NPT angle value, you can now calculate the thread diameter and lengths for any part
