guitar Nut Stratocaster 6-Strings Nut Pure copper  Thumb/Corvette/Streamer。

      6 screws can adjust the height independently ！

  long：43 mm

  wide：5 mm

  high： 5 mm

     R=20

It needs to be polished before installation, as the size of the wood on the neck can change due to dry humidity. So you have to grind, and copper is very easy to grind, you can do it with sandpaper.