So 5/8"x24 and 1/2"x28 are the mainstream for most threaded barrels?
There are other thread pitches out there. Most european guns use a metric thread. Here is a list:
.22 LR, .22 MAG, .17 HMR
The standard thread for these calibers is 1/2x28.
9mm
- 1/2x28 is the most common thread for 9mm weapons - both carbine and pistol.
- H&K weapons use the M13.5x1 LH thread pitch
- Sig Sauer weapons use the M13.5x1LH thread pitch
- 9/16x24 is the most common thread pitch for .40 cal weapons.
- H&K weapons use the M14.5x1 LH thread pitch
- .578x28 is the most common thread for .45 cal weapons.
- H&K USP Tactical uses the M16x1 LH thread pitch
- H&K Mark 23 (Socom) uses the M16x1 RH thread pitch
- AR-15s use the 1/2x28 thread pitch
- Steyr Aug uses the M13x1 LH thread pitch
- H&K weapons use the M15x1 thread pitch
- Ruger Mini uses 9/16x24 thread pitch
- 5/8x24 is the most common thread for 7.62mm/.308 weapons
- Sako TRG uses the M18x1 thread pitch
- Accuracy International uses the M18x1.5 thread pitch
- AK-47s use the M14x1LH thread pitch
- 5/8x24 is the most common thread for .338LM weapons
- Sako TRG uses the M18x1 thread pitch
- Accuracy International uses the M18x1.5 thread pitch
- Desert Tactical Arms uses the 3/4x24 thread pitch