Putting a lefty neck on a righty body so don't need the nut. This is tedur (so, plastic
) nut, it measures 45mm wide. It came on a lefty neck that I don't think was ever used, and it includes both the base and height adjustable slotted nut with adjustment screws(what you see in the pics), but no Allen key. It's in new condition. To buy one is nearly $50, I'll ship it free for $25, but I also need a 5 string set of stainless steel strings (new only, not interested in used strings) so I'd trade if you have a set.