The K&K Sound Chrome Strap Button fits K&K stringed instrument pickups made after October 2006 that use the newer Switchcraft jacks, including the Aloha Twin, Big Island Spot, FanTaStick, Mandolin Twin, PowerMix, Pure Mini, Pure Classic, Pure Bass, Pure 12-String, Trinity, UltraPure Mini, UltraPure Classic, UltraPure 12-String. Also fits pickups from other manufacturers that use Switchcraft jacks with U.S. standard threading.
NOTE: This strap button has a FLAT top with U.S. STANDARD (IMPERIAL) threading. If your existing strap button has a flat top, it is most likely U.S. Standard (Imperial) threading. If your existing strap button has a beveled (rounded) top, it is most likely Metric (European) threading. If you are not sure, please contact us before purchasing.