How To Measure Thread Size Of Tap. For pvc pipe measure the outer diameter, for the fittings measure the inner diameter. 465 of an inch which is about.
If you don't know the pitch, choose coarse threads; Tap drill (mm) m4 x 0.35. Compare the numbers and thread type you just gathered to the numbers written on the taps and dies.
> i want to buy a hose pipe to attach to the outdoor tap at my new house.
This tap has 1/2 cast into the side. Hold the pipe in 1 hand and take a ruler or tape measure in your other hand. *image not to scale, measurements are appoximates only. The pitch of the thread.