I seem to remember reading somewhere that there is a relationship between NPT (US National Pipe Taper) threads and either UNF or UNC threads.
I am looking at buying one of these https://www.carbuildersolutions.com/uk/brass-union-for-adjustable-thermostat-capillary
The idea is to drill a hole in the thermostat housing to take it. So I was hoping I could tap the hole with a straight thread unf or unc tap as I have a selection of those already.
I am looking at buying one of these https://www.carbuildersolutions.com/uk/brass-union-for-adjustable-thermostat-capillary
The idea is to drill a hole in the thermostat housing to take it. So I was hoping I could tap the hole with a straight thread unf or unc tap as I have a selection of those already.