Fixturing system for woodworking

A device for use with a wood-based structural element having an outer surface and inner surfaces defining a T-slot, wherein the T-slot has a central section that is open at the outer surface, and further has a pair of undercut sections projecting from opposite sides of the central section, and the inner surfaces of the structural element include a pair of inner surfaces facing inward across the pair of undercut sections of the T-slot, the device comprising:

• a T-nut having an outer portion receivable in the central section of the T-slot, a screw-threaded bore in the outer portion, an inner portion with a pair of clamping surfaces projecting from opposite sides of the outer portion, and a plurality of sockets extending vertically through the T-nut;
• wherein the outer surface of the structural element is planar, and the clamping surfaces on the T-nut are planar and inclined so as to project inward relative to the outer portion of the T-nut at angles of inclination between 5 degrees and 30 degrees.