Authentic locking nut for German-made Original and Pro Tremolo Systems. ?áIf you don't know the nut size you need, please consult the nut sizing chart below:
![](https://cdn.shopify.com/s/files/1/1711/6239/files/Nut_Spec_Chart_Excel_2019.jpg?v=1570646079)
?á
For those replacing existing locking nuts, the center-to-center distance of the mounting holes is .535"/13.59mm.