T-Nuts hold fixtures and featherboards to machine table surfaces
special 1-7/8-inch x 3/4-inch Nuts slip into the special T-Slots
on the tables and rip fences of your Shopsmith MARK V (Model
510 or 520), Bandsaw or MARK V Router Table. The two outside
holes are threaded to accept standard 1/4-inch-20 bolts or
knobs with threaded studs.
in additional Table