Replacement neck for jazz bass® one-piece maple neck, polished, unpainted 20 frets (2.6 x 1.1 mm) '10 fingerboard radius' 1.5 (38 mm) nut width 'at the bottom, 2 7/16 (61,9 mm) wide holes for machine heads 17,46 mm diameter steel rod access on the bottom of the neck neck: 22,4 mm at 1st fret thickness:, 25,7 mm at 12th