Tone-Lock™ Bridge Lock Nuts for 4mm bridge posts (imports and Faber® 4mm conversion posts)

Replacement Tone-Lock™ Bridge Lock Nuts, for 4mm bridge posts. For import guitars with native 4mm bridge posts, and Faber® 4mm conversion bridge posts (NSWKIT™, iNsert™, BSWKIT™, E-Sert™, ESWKIT™). Sold individually.