The CAMO 5/16" Ledger + Multi-Ply Flat Head Structural Screw is built for exterior framing where ledger boards and 2-ply engineered beams demand strong, code‑compliant connections. At 3-1/2" long and 5/16" in diameter, this 250‑count fastener is engineered to bite deep, finish flush, and resist the elements with confidence.

What makes this screw stand out

• Code‑compliant exterior coating with CAMO’s PROTECH Ultra 4‑layer system, delivering superior corrosion resistance for long-lasting connections in decks, porches, and other exposed structures.
• Ledger and multi‑ply performance specifically designed to secure ledger boards and 2‑ply engineered beams, providing the reliability you need for critical structural connections.
• Alternative to lag screws can replace 1/2" lag screws in general construction projects, simplifying installation without sacrificing strength.
• Fast start, easy drive, flush finish engineered to minimize driving effort and leave a clean, snag‑free surface once driven.
• Third‑party tested & IBC/IRC certified for peace of mind in code‑strict applications, ensuring your project meets required safety standards.

Ideal applications

• Deck construction and ledger-to-rim joist connections where ledger boards support exterior framing
• 2‑ply engineered beam fastenings in exterior and semi‑exposed structures
• Repairs or remodels where replacing lag screws with a modern structural screw improves installation speed and reliability

Practical guidance for best results

• Use with compatible drive systems designed for CAMO structural screws to maximize drive efficiency and minimize stripping.
• Engage the full thread into solid wood or engineered lumber for optimal pull‑out resistance; anticipate a shorter driven length into softer woods and a longer bite into dense species.
• When working in high‑load or exterior environments, ensure proper sealing and flashing around connections to protect against moisture intrusion.
• No pre‑drilling is often required in common framing scenarios, but follow local code and manufacturer recommendations if working with particularly dense hardwoods or pre‑existing holes.

Product details at a glance

• Diameter: 5/16"
• Length: 3-1/2"
• Quantity: 250 count
• Coating: PROTECH Ultra 4‑layer exterior coating
• Code compliance: IBC and IRC certified
• Design: Ledger + Multi‑Ply flat head structural screw
• Product code: CAMO 366199

Choose the CAMO 5/16" Ledger + Multi-Ply Flat Head Structural Screw when you need a robust, code‑driven solution that delivers dependable performance for ledger connections and dual‑ply beams—without compromising on speed, finish, or long‑term durability.