Ideal for use in anchoring to concrete or wood to concrete applications including basement framing and sheds GRK Fasteners GRK-CALIBURN GRK CALIBURN Screws in a variety 3-1/2 Inch Concrete Screws Caliburn Concrete Screws | GRK | The Deck Store Star Drive Concrete Anchors Concrete Screws - Caliburn – PH - 1/4 x 2 1/4 – 50/pkg from GRK Aggressive Heavy Duty Threads lock ino concrete and can be removed/reinserted without screw damage. GRK Fasteners Caliburn 1/4 in. x 2-3/4 in. Concrete Screws, 50 Ct Recessed Star drive affords zero stripping with 6 points of contact.
