DURABLE CONSTRUCTION: Crafted from premium carbon steel, our wood screws are built to last and are compatible with ACQ-treated wood for long-lasting performance. RUST-RESISTANT COATING: With a 4-layers coating that has passed a rigorous 1000 Hour Salt Spray Test, our lag screws provide superior protection against corrosion and rust, ensuring durability in even the harshest conditions. EASY INSTALLATION: The knurled shank reduces the torque required for drilling, while the sharp threads and type 17 notched extra sharp point allow for effortless drilling without damaging the wood, saving you time and effort. SLEEK DESIGN: The modified truss washer head design guarantees a sleek finish, elevating the appearance of your woodworking projects. The T30 star drive style ensures secure and efficient fastening without slippage. VERSATILE USE: Ideal for outdoor, home, and industrial applications such as deck building, log construction, timber framing, laminated beams, and pole barns, our lag screw bolts are a versatile addition to your toolkit. #14 x 4" Wood Structural Lag Screws 54Pcs Star Drive Decking Wood Screws, Rust Resistant Timber Screws for Timber/Log/Landscaping Wood