The TonePros Locking Stop Bar Tailpiece T1ZS features standard US threads that fit most USA guitars.
Thread: 5/16"-24 US Thread
Post to Post Spacing: 3.22 Inches/ 82mm
Tailpiece Material: Zamak
Stud Material: Brass
Stud Cap Size: 13mm / 0.5"
Includes allen key.
Tech's notes: "These are not a guaranteed fit on virtually every USA guitar. As with all parts replacements/upgrades, you need to confirm the measurements are suitable for your needs."