#14 x 4 Wood Structural Screws, Wood Screws, 200Pcs Lag Screws 4 Inch, Rust Resistant, Washer Head, Black Coated, Star Drive with Bit

Lag Screws – The Heavy-Duty Fastener for Structural Integrity Key Features 1.Self-drilling tip‌ & ‌aggressive threads‌: the design of sharp threads allow drilling into the wood easily without damage, no pre-drilling needed, compare with traditional lag screws, it can reduce labor time. 2.Uncompromised Structural Integrity‌: knurl thread reduce the torque requirement of drilling, thread design‌ prevents wood splitting and cracking. 3.Durable construction: our wood screws can withstand considerable weight and pressure without breaking and bending, reliable for long-lasting woodworking projects. 4.Anti corrosion coatings: the timber screws passed the 1000 hour salt spray test, provide great protection against rust and corrosion, the surface still remain smooth even after exposure to the elements for a long time, withstand the weather for outdoor using. Applications ‌Outdoor Projects‌: pergolas, decks, fence post anchoring‌ ‌Construction‌: timber framing, roof trusses,ledger board attachment

• Rust Resistant: these structural screws are made of high quality steel material, strength and durability; the exterior black coating passed 1,000-hour salt spray test, provide excellent protection against rust and corrosion, ensure long-lasting performance even in harshest conditions
• Torx Drive: the torx drive lag screws package includes a torx T-30 bit for maximum torque transfer without cam-out issues, withstand high pressure torque without stripping, provide a efficient and safe fastening process
• Knurl Thread & Self-tapping: the knurl shank design reduces the torque requirement of drilling, can expands the screw holes and easy to install; the self-drilling tip with thread design can penetrate hardwoods without splitting, no pre-drilling needed, saving you time and effort
• Quantity & Product Dimensions: the package includes 200pcs #14x4" wood screws and 1pcT30 star bit; screw length 4 inch, head diameter 0.55 inch, thread diameter 0.25 inch
• Versatile Use: our heavy duty lag screws are ideal for indoor, outdoor and industrial applications, such as deck building, timber framing, interior/exterior remodeling, laminated beams and pole barns