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Lol, you're funny. I found out they were not the wheel handles. FD connection st two places and caps on the fire hydrant. I called the city to find out what type of threads that was required for the connections. The hose connections need to be done by a licensed fire sprinkler contractor. Fire hydrant, nobody cares. The funny thing is the city could not tell me what type of thread that was required. I will bow out gracefully and let the other contractor take over.
If it's in Raleigh, they have their own, proprietary hose thread for FDC's and hose valves. I believe hydrants also. 98% of the rest of the country is on NST 2.5" hose threads.
It seems that every city has one or the other and the hydrants must follow suit as well. I was amazed that every city in the country didn't have the exact same connector threads. Thomasville is NST threads 2.5" and the hydrant was 4.5 & 2.5 & 2.5