#14 x 3 Inch Structural Wood Screws Kit(55PCS), Heavy Duty Exterior Timber Screws, Black Lag Screws for Wood with Modified Truss Washer Head, Structural Construction Screws with T30 Star Drive Bit
【ALLOY STEEL MATERIAL】Each structural wood screw features a modified truss washer head with a diameter of 0.55 inches. Made from heat-treated steel, these black lag screws for wood ensure durability and reliability for long-lasting woodworking projects.
【RUST-RESISTANT COATING】Each black finished wood deck screws has passed a 1000-hour salt spray test, ensuring superior resistance to rust and corrosion. Ideal for use in extreme outdoor environments—including sun, humidity, rain, and snow.
【NOTCHED TIP & KNURLED SHANK】These self-tapping tip wood screws feature a knurled shank that reduces drilling torque, while the serrated threads allow for damage-free penetration into wood.
【WASHER HEAD & STAR DRIVE】The T30 star drive bit combined with the washer head on these long wood screws ensures efficient torque transfer, minimizing slippage and cam-out for a safer fastening process.
【WIDE APPLICATIONS】Suitable for wood projects such as decks, fences, timber frames, windows, and outdoor structures. Works with softwood, hardwood, ACQ-treated lumber, and construction wood products.