I found these over at www.warmoth.com. They have everything you need to cut, slot and glue your nut in.
NBCB Fender Curved Bone $3.75 ea. 1/8” thick nut for curved bottom nut slots. Fits nut widths up to 1-11/16” (42.85mm). This nut fits our Total Vintage Construction, PBass®, JBass®, Mustang, and Baritone Conversion necks.
NBCG Fender Curved Graphite $3.75 ea. 1/8” thick nut for curved bottom nut slots. Fits nut widths up to 1-3/4” (44.45mm). This nut fits our Total Vintage Construction, PBass®, JBass®, Mustang, and Baritone Conversion necks.
NBCN Fender Curved Nickel
(18% hard
nickel/silver) $6.50 ea. 1/8” thick nuts for curved bottom nut slots. These come in two widths: 1-3/4” & 1 7/8”. These nuts fit our Total Vintage Construction, PBass®, JBass®, Mustang, Baritone Conversion and Deluxe 5 necks.
Have fun!