TonePros locking studs are designed to lock down any wraparound bridge or stop tailpiece. They provide 100% of the contact area of the bottom flange, 100% of the contact area of the stud top, no lean, and components that are completely locked solid to the guitar body.
Includes custom TonePros Stud Wrench tool.
Thread: 5/16"-24 US Thread (as used on most USA-spec bridges)
Stud Cap Size: 13mm/0.5"
Double check the measurements and dimensional drawing against your needs to ensure they will work with your bridge.