Quantity & Size: 40-Pack #14 x 4" Bronze Lag Screws for Wood Construction (includes a T30 Bit); Thread Diameter 0.25 inch -Head Diameter 0.625 inch -Screw Length 4"
Crafted from heat-treated carbon steel for superior durability with triple-layer defense: Zinc base fights corrosion + Epoxy seal+ UV-resistant bronze topcoat maintains color; 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