NEW Gotoh GLN-7 Locking Nut 7-String - Top Mount Type - 48mm Width - GOLD | eBay
Emerald Guitars - 7 string headstock with Gotoh 510 tuners Check out all the details on the custom 7 string Spalted Chen Chen here https://emeraldguitars.com/product/x20-7-spalted-chen-chen-4777/ | Facebook
GOTOH® 510FX 7 STRINGS FIXED BRIDGE STRING SPACING 10.5mm BLACK - Fred's Guitar Parts