#14 x 7 Heavy-Duty Structural Deck & Lag Screws - Epoxy-Coated Black Rust Resistant - Torx T30 Star Drive (Includes Bit) - for Outdoor Timber, Log, Landscaping Wood, Fence, Pergola, 20-Pack

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More features

• Quantity & Size: 20-Pack #14 x 7" Black Lag Screws for Wood Construction (includes a T30 Bit); Thread Diameter 0.25 inch -Head Diameter 0.625 inch -Screw Length 7"
• Crafted from heat-treated carbon steel with triple-layer defense: zinc base + epoxy seal + matte topcoat; 1000+ hour salt spray resistance - outlasts coastal/snow environments; Thickened core prevents wood spliting
• Knurled Grip Advantage: (1) Prevents loosening: The knurled shank compacts wood fibers for a vibration-proof hold (2) Stops splitting: Expands holes gradually to reduce wood stress (3) Self-locking action: Creates permanent friction that resists seasonal wood movement (4) Faster installation: Cuts through hardwood like maple without pilot holes
• Flat Round Head (Slightly Rounded): Gentle on surfaces: Rounded edges won’t cut or splinter; Ideal for visible outdoor projects; Torx T25 advantage: Prevents cam-out when driving deep
• Self-Starting Cut Point Type 17 Advantage: (1) No pilot holes needed: Sharp cutting flutes drill through wood like a knife; (2) Splinter-free starts: Clean entry prevents surface tear-out on expensive woods (3) Faster driving: Dual cutting edges clear wood chips instantly (4) Stays on target: Won’t wander on curved timber surfaces