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FMhotu Lag Screws, 5/16" x 4" Structural Screws 5/16" x 4" Black 50

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FMhotu Lag Screws, 5/16" x 4" Structural Screws

Product Features

  • SUPERIOR HOLDING POWER: Serrated threads create a tight seal that increases draw-down strength and reduces driving torque by 40%.
  • PRO-GRADE DURABILITY: Heat-treated Grade 5 hardness provides extreme resistance to breakage and stripping, ensuring reliability for heavy-duty structural jobs.
  • RUST-PROOF CERAMIC COAT: Protected by a black ceramic coating that passes 1,500+ hour salt spray tests (ASTM B117). Built to last in rain, snow, and humid climates.
  • FAST, SLIP-FREE DRIVING: The 6-lobe star drive design ensures a tight grip on driver bits, eliminating slippage and speeding up installation time on the job site.
  • WIDE RANGE OF USES: Ideal for framing, structural decking, fence building, and ledger boards. Suitable for pressure-treated wood, hardwoods, and outdoor construction.