In use the 8.50mm hole slots over the end end of a coordinating rod and is held in place by a bolt. The 3.96mm (5/32") elongated slot houses the tailpiece screw and hexagon nut. Tailpiece Holding Bracket.
Banjo Tailpiece Mounting Bracket, L Shape. Clifford Essex
5 String Nickel Banjo Tailpiece 5 String Banjo Tailpiece Banjo Tailpiece
T Shape Tailpiece Mount Bracket Musical Instrument Accessory Parts for Banjo
4pcs Banjo Replacement Banjo Bracket Hooks Banjo Part Guitar Bracket