The Schaller STM Roller Bridge conversion posts have an 8 mm bottom thread and a 4 mm top post to allow you to fit the STM roller bridge onto guitars with the larger style Tune-o-matic body bushing which is very common on guitars made in Asia (Epiphone, Schecter, ESP/LTD etc.).

The 8 mm threaded section will screw directly into the larger style body anchor bushing so there is no need to remove the body bushings, the Schaller STM roller bridge then mounts on to these posts, the integrated thumbwheels adjust the height of the posts. Please note these have a short top post designed specifically for the Schaller STM, we have other standard tune-o-matic conversion posts available as separate items.

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