Screw Zinc GRK RSS ACQ Gpd 1/4x3-1/8" 50pk (12161)

Skip the pre-drilling and the through-bolts. This structural wood screw delivers high-strength connections in a fraction of the time, making it a favourite of builders for ledgers, beams, posts and heavy framing.

Key Features

• Brand: GRK
• Coated for use with treated (ACQ) lumber
• High shear and tensile strength
• Self-drilling tip — no pre-drilling in most wood
• Coated for treated lumber and exterior use

Common Applications

• Deck ledgers, beams and post connections
• Multi-ply beams, timber framing and landscape structures

Related Products & Sizes

• Structural screws in other lengths
• Matching driver bits (usually included)

Installation & Use Notes

• Follow the manufacturer's spacing and edge distance guidance
• Drive with a high-torque drill or impact driver until the head seats flush