New and unique solid one-piece strap button in hardened steel with self-tapping wood thread. Simply screw it on with an Allen key (size 3mm/ 1/8").

4 mm/ 5/32“ screw with self-tapping wood thread for maximum hold in wood for almost all instruments with existing screws in standard dimensions; for all other cases we offer strap buttons in XL and S format (see below); in any case, please read our installation instructions below carefully;
hardened steel and more than double thickness of the strap button guarantees maximum security against breakage,
Including high-grade felt washers for ultimate protection of guitar's finish.