What size nut goes onto a typical US passenger tire Schrader valve?
To insert the tire valve, I know there is a ridiculously cheap cross-type valve tool where you thread it on the outside of the tire valve to pull the tire valve through the hole in the wheel rim, but for emergency use I just want to stock a few nuts that I can thread on the outside of a new valve to use as a ledge to pull the tire valve through the hole as shown here:
Looking for what nuts to purchase, the Wikipedia for Schrader valves says the typical passenger brass & rubber tubeless tire pop-in Schrader valve has OD threads of:
*TR 418, 0.453 in (11.5 mm) rim hole diam. 2 in (51 mm) long* [*] Metric: 7.7 mm OD, thread root diameter is 6.9 mm ? 0.794 mm pitch [*] Imperial: 0.305 in OD, thread root diameter 0.271 in ? 32 tpi (threads per inch; thread density)Assuming "Imperial" means "USA", that would mean I need a 32 TPI nut somewhere between 0.271 inches and 0.305 inches in iD, but that doesn't seem to be a standard size for a USA nut.
Even if I look deeper into the granularity, it still seems an odd size:
So I simply ask you if you have experence with this problem.
What size nut goes onto a typical US passenger tire Schrader valve?