8020, 3280, 10 Series 1/4-20 1/4 Double Threaded Slide in Economy T-Nut Steel T-Slot Accessories for 80/20 Aluminum Extrusion Hardware Nuts (25 Pack)
1/4-20 thread. Your most economical fastening option. The Double Economy style t-nuts load from the extrusion end only. These will save significant time when combining with multi-hole joining plates. Made from steel with a black zinc finish. Please note that the threaded pilot projection should face down in the T-slot to avoid crashing.