Pipe thread nw1.250taperd thread?

With a stock and dies and a pipe vice or a threading machine such as a ridgid 300 or 400 or a 12 R or a 65 R depending on the pipe diameter and do not forget the oiler One can always use an Armstrong...

well 1st of all U need to determine the second pc. as a FITTING, and, after that if the two materials r 2 b used together it doesn't really matter. The best way is to stay with the original materials...

60 degrees

NPT = pipe Briggs standard = Pipe NFT and NFC and ASAE = bolt

It is called a Die. It looks like a nut that is used on a bolt. It is made from much harder steel and cuts the grooves in the pipe like the thread on a bolt. The same thing is used to cut the grooves...