QUESTIONS FOR THE PROS BARREL THREADS

SOMEBODY tell me what threads i have>?..when i guage them 14 is way coarser than mine…and 28 threads is to fine??? i need a muzzle devise or slant brake not sure what i have? anyone help out?

Looks like 14x1 lh to me… is the diameter 14mm?

i dont really have anything to measure it will 144 socket be the same?..lol feel like an ass dont have many tools to guage stuff