Just stumbled upon this thread...
HB7's use a bushing made to press in the standard 18mm hole of a Mexican made Fender.(18mm is .708)
Typically the larger 1/2" HB6C Ultralite bushing (nut) is too small to fit in the headstock of a Mexi fender.... however (drum roll) we (Hipshot Products, Inc.) are now manufacturing an 18mm bushing to fit the Headstock (ta-da!)
Upon request when you order a set of HB6C Ultralites, let us know if you want the 18mm bushing to fit a Mexi fender (also some Japanese necks)
Please note these bushings were just cut (literally this morning on the lathe) and still have to go through normal processing.. (sanding, tumbling, buffing, send out to plating, received back from plating) so it's going to be a few of weeks before they are ready to ship to customers. We will be only be plating them for chrome tuners for now, black and gold to follow depending on demand.
Show of hands to see who wants less weight on head stocks?