CARROLLTON, TX — Advance Components is the exclusive distributor of the amazing reusable Duplex Screw. The double-headed hex screw is the perfect solution for temporary structures, concrete forming and hurricane proofing, as it's easy to install, remove and use again. Available in sizes in 1 1/4", 1 5/8", 1 3/4" and 2 3/4" and ships in 5, 10 and 20 lb. boxes.
