The 49145 5/16 in x 6-3/4 in Structural Wood Screw is a heavy-duty fastening solution engineered for joining structural and engineered wood members in demanding construction applications. Designed as an alternative to traditional through-bolts and multiple nail connections, this screw features a self-drilling Type 17 point, serrated threads, and a diamond shank design that reduces installation torque while maximizing holding strength. The corrosion-resistant epoxy coating provides long-lasting durability in exterior and treated lumber environments, making it suitable for structural framing, beam connections, and other load-bearing wood construction projects.
Key Features
Designed for structural wood-to-wood fastening applications
Suitable for engineered lumber including PSL, LSL, and LVL members
Self-drilling Type 17 point helps eliminate pre-drilling in many installations
Serrated thread design promotes faster penetration and secure holding power
Diamond shank technology reduces drive friction and installation torque
Grade 5 strength construction for demanding structural applications
Corrosion-resistant epoxy coating for exterior durability
Compatible with ACQ and other treated lumber applications
Approved for single-sided installation
Helps replace traditional through-bolt and nail fastening methods
Hex washer head design improves clamping force and installation efficiency
Building code approved for structural fastening applications
Specifications
Model Number: 49145
Product Type: Structural Wood Screw
Diameter: 5/16 in
Length: 6-3/4 in
Head Style: Hex Washer Head
Drive Type: Hex Drive
Thread Type: Serrated Thread
Point Type: Type 17 Self-Drilling Point
Material: Steel
Strength Classification: Grade 5
Finish: Red Epoxy-Coated Finish
Package Quantity: 25 Count
Certification: AC257 Treated Lumber Certified
Evaluation Report: ICC ESR-4017
Application: Wood-to-Wood Structural Fastening
Suitable for Exterior Use
Applications
Structural framing projects
Engineered wood beam connections
Laminated Veneer Lumber (LVL) assemblies
Laminated Strand Lumber (LSL) installations
Parallel Strand Lumber (PSL) construction
Header and beam fastening
Deck and outdoor structural wood applications
Heavy-duty load-bearing wood connections
Residential and commercial structural construction