5/16 x 2 Hex Lag Scrw HDG

Overview

The 5/16 x 2 Hex Lag Screw HDG (05568) is designed for hardware fastening applications requiring secure connection of heavy timbers, wood-to-wood assemblies, or wood-to-masonry and concrete installations.

Technical Features

• Hexagonal head drive: Accepts a standard wrench or socket, allowing high-torque installation compared to slotted or Phillips fasteners — critical for driving into dense timber or masonry substrates.
• Hot-Dip Galvanized (HDG) finish: Provides a thick, metallurgically bonded zinc coating that resists corrosion in exterior and high-moisture environments, extending service life in exposed applications.
• 5/16-inch diameter x 2-inch length: A compact yet robust shank profile suited for moderate-load structural connections where space or material thickness is a limiting factor.
• Lag screw thread form: Coarse, aggressive threading self-taps into wood fibers, creating a strong mechanical grip without requiring a pre-threaded nut on the receiving material.

Applications

• Fastening heavy timbers to one another in framing, decking, and structural carpentry.
• Securing wood members to masonry or concrete walls, foundations, and sill plates when used with an appropriate anchor sleeve.
• General heavy-duty wood construction where standard wood screws are insufficient in holding strength or scale.
• Outdoor and exterior installations where corrosion resistance is required, due to the HDG coating.