Gotoh SG381 Locking Tuners (Magnum Lock-Trad)
Specifications
Where to Buy
Description
The locking version of the SG381 brings Gotoh's Magnum Lock-Trad system to the table – a simple but highly effective locking mechanism using a rear thumbscrew. Ideal for players who change strings often or use tremolo systems, it keeps tuning tight and stable under pressure.
Fitment Summary
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Mounting: 3+3 or 6-in-line
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Post Diameter: 10mm
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Mounting Type: Screw-in bushing with rear screw
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Locking System: Thumbwheel (Magnum Lock-Trad)
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Gear Ratio: 1:18
Fitment Flags
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Drop-in fit for modern sealed tuners (10mm holes)
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May require drilling for new mounting screw holes
Parts & Accessories
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Includes screw-in bushings and mounting screws
️ Installation Notes
A direct upgrade for modern guitars with sealed tuners. The locking mechanism is simple and doesn't interfere with string winding. Retrofitting from vintage-style tuners will require adapter bushings and new screw holes.
Benefits
- Quick string changes
- Excellent tuning stability
- No special tools needed
Compatible Guitars
No guitars are confirmed compatible with this modification yet. This means we haven't checked these pairings — not that no guitar fits.
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