Quantity & Size: You will get 2.5lb box (approx. 81pcs screws) #14 x 4" long lag screws concstruction wood screws, black, a T30 star bit Rust Resistant: Our heavy duty lag screws are made from carbon steel and epoxy exterior black coating, with high hardness and great corrosion resistance, passed 2000h salt spray test, withstand the weather for outdoor use Torx Drive: Torx drive lag screw bolt uses T30 star bit, taking high pressure torque without stripping. Large wide truss head or washer head won't over countersink into the material Knurled Shank: The long wood screws feature knurled shank that expands the screw hole, facilitating easy settling, self-tapping cut for easy drilling, prevent wood cracking Application: The black exterior lag screws deck screws work in wood, treated lumber, landscape timber, supply for wood projects, decking, fencing, framing, interior/exterior remodeling, DIY project BNUOK Lag Screws Heavy Duty Construction Structural Exterior Wood Timber Screws, Torx Drive Washer Head Rust Resistant Black Epoxy Coated, with T30 Star Bit

Material: carbon steel
Finish: epoxy exterior black coating
Drive: torx/star
Color: black
Head Style: modified truss washer head, truss head, washer head, flange round head

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