T-slot nuts and bolts fasten workpieces into T-slot grooves found on milling machines and positioning tables. T-slot nut and stud kits include a selection of T-slot nuts and bolts to secure workpieces and tools in place. T-slot nuts fit into a T-slot and a threaded bore to connect to a threaded rod or bolt to secure the workpiece. T-bolts and T-slot bolts have a square or T-shaped head and threaded stud to slide into the T-slot. A flange nut is attached to secure the workpiece to the table.