5/16" Ledger + Multi-Ply Flat Head Structural Screw - 4" x 5/16" - 250 ct (CAMO 366209)

CAMO 5/16" Multi-Ply Ledger + Flat Head Structural Screw — 4" x 5/16" (250 ct) combines code compliance, corrosion resistance, and effortless installation into a single, purpose-built fastener. Engineered for ledger connections and general construction, this 4-inch screw delivers secure holds, a clean flush finish, and long-term performance in a variety of environments.

Code-compliant and exterior-coated, these CAMO Multi-Ply screws are designed to secure ledger assemblies with precision while delivering a finish that sits flush to the surface. The 4" length and 5/16" diameter strike a balance between strong holding power and ease of driving, making them a reliable choice for interior corridor ledgers and other structural connections.

What makes CAMO 5/16" Multi-Ply Ledger + Flat Head screws stand out?

• PROTECH Ultra 4-layer coating provides exceptional corrosion resistance, protecting connections in outdoor, high-humidity, or variable weather environments for the long haul.
• Finish flush and start fast design means fewer callbacks and a cleaner, more professional result when the ledger pulls tight against the framing.
• Code compliant and third-party tested with IBC and IRC certifications, giving you confidence in meeting building standards for structural applications.
• Versatile replacement for lag screws—configurable to substitute 1/2" lag screws in many general construction projects, simplifying inventory and installation.
• Multi-Ply construction for strong, reliable connections across ledger and framing members, reducing the risk of long-term loosening.
• 250-count quantity helps keep large projects moving without constant reordering.

Ideal applications and practical use

• Primary use: fastening interior corridor ledgers where a secure, flush finish matters as part of a durable, code-compliant assembly.
• Alternative to lag screws in general construction projects when a flush, clean aesthetic and easier driving are priorities.
• Outdoor or exposed environments benefit from the exterior coating’s corrosion resistance, supporting long-lasting connections in decks, framing, and similar structures.

Installation mindset and tips

• Let the screw’s design do the work: engineered to start quickly, drive with consistent torque, and finish flush without protrusion.
• Plan for the ledger layout to ensure the 4" length achieves the required bite without over-penetration.
• Use compatible driver systems to maximize driving efficiency and minimize cam-out, especially on multi-ply assemblies.

With the CAMO 5/16" Multi-Ply Ledger + Flat Head Structural Screw, you’re choosing a purpose-built fastener that pairs code compliance with robust corrosion resistance and straightforward, reliable installation. It’s the thoughtful, high-performance choice for ledger connections and challenging framing tasks where a finish-you-can-trust matters as much as the hold itself.