Schaller S-Lock System Strap Locks
$55
Chicago Music Exchange
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...