Furniture Barrel Nuts Cross Dowel Slotted Nuts Furniture cross dowel barrel nuts are cylindrical shaped metal nuts (metal dowels) used with furniture connector bolts to join two pieces of wood. Made of bright zin plated material, anti-rust and anti-corrosion, strong and durable for long using life Well-built, solid hardware for assembling most beds, tables, chairs, workbenches For joining woods, boards, cabinets, and a variety of other DIY projects Please use drop down list above for required size & quantity Available Size:M6 x 13 mmM6 x 16 mmM6 x 22 mmM6 x 30 mmM6 x 40 mm ** FREE DELIVERY **.