DIYUK 4-Prong T-Nuts M6 x 12mm, Zinc Plated Captive Nuts, Pack of 10 | For wood, plywood and MDF: flanged collar, full-depth metric thread, fitted by hand without specialist tools

Locks against rotation: four sharp prongs bite into the wood as the nut is driven in, locking it against rotation with no additional fasteners Reusable metric thread: a durable metric fixing point in timber, plywood and MDF, so bolts can be tightened and undone again and again Neat, flush finish: the flanged collar sits flush with the surface for a neat, snag-free finish and is discreet once fitted Anti-corrosion, quick to fit: white zinc coating on carbon steel and fast installation by hand, without specialist tools Easy to choose: this listing is M6 x 12mm, pack of 10, for a 7.3mm hole (flange 19.0mm); 5 sizes from M4 x 8mm to M8 x 11mm, in packs of 4, 10, 50, 100, 200, 400 or 1000 Fits standard metric bolts: works with metric bolts, machine screws and furniture connector bolts in the matching thread size, and the internal thread runs the full depth of the barrel For furniture and climbing walls: upholstered furniture, table legs and chairs, cabinets and worktops, flat-pack furniture and bed frames, outdoor and garden furniture, bolt-on holds in plywood climbing walls, workshop jigs and speaker cabinets