If you are going to screw around with projects like this I think that you need Stuart Ottenson's books titled "Bolt Action Rifles."

There are two volumes. I think that the Enfield is in the first. The outfit that prints the "Rifle," and the "Handloader" sold both on a CD at one time. I sent my CD version to a budding smith in Arkansaw, Tim Macolm. A young friend an advisee and advisor for some years.

That would be the easiest and cheapest way for you to have info like this on hand. My advice to you as an old basement gunsmith. I have both volumes, and they are priceless to me.

Good luck. Never rely on others to give you reliable info is my motto. Social media is not the AP. You need a fact checker.

A better posting would have been to tell us what the threads "are" i.e. diameter and pitch that you presently have.Thread forms 60 degree, Whitworth, square, acme, are all over. What do "you" need? Maybe a learned person could give you a good suggestion for your problem.