The Thorn Brass Knuckle II is finally here - a drop-in replacement bridge for Jazzmaster, Jaguar, and Mustang guitars with vintage-style “thimble” mounts.

Based on Thorn’s original one-piece Tele Brass Knuckle saddle, the BK2 features a solid brass saddle with compensated string slots for accurate intonation, improved tuning stability, and enhanced tone. Mounted to a chrome-plated steel base plate, the design eliminates rattle, moving parts, and setup headaches - just pure performance.

Installation couldn’t be easier: remove your strings, lift the old bridge, drop in the BK2, restring, and set your action and intonation. No drilling, no swapping thimbles - just a quick upgrade that works exactly as intended.

Deep string slots keep everything locked in place during aggressive playing, while precision compensation ensures accurate intonation with standard gauges (9–42, 10–46, 11–49 w/ plain G). The BK2 even plays nicely with Bigsby setups thanks to its clean, snag-free design.

Specs:

Drop-in bridge for Fender & aftermarket bodies w/ vintage-style thimbles (2-7/8" centers)

One-piece brass saddle with compensated slots

Chrome-plated steel base plate

Radius options: 7-1/4", 9-1/2", or 10"

2-1/16" string spacing

Right-handed only

Includes instructions & allen wrench