Value Collection 3GBL9050400 Hex Lag Screw 5/16x4in

Product Description

The VALUE COLLECTION 3GBL9050400 is a hex head lag screw designed for heavy-duty fastening applications requiring corrosion resistance and structural holding strength. Manufactured from AISI 1006-1022 grade steel with a hot dipped galvanized finish, this fastener measures 5/16 inches in diameter with a 4 inch length under head. The hex drive head allows installation with a standard socket or wrench. It meets ASME B18.2.1 dimensional standards, making it a reliable choice for contractors, carpenters, electricians, and other trade professionals who require a code-compliant lag fastener for structural and utility connections.

This lag screw is suited for wood-to-wood and wood-to-structural framing connections in both residential and light commercial construction. Typical applications include deck framing, ledger board attachment, fence construction, electrical conduit support blocking, and HVAC equipment mounting to wood substrates. The hot dipped galvanized coating provides extended service life in exterior and semi-exposed environments where bare steel fasteners would corrode prematurely.

Key Features

• Hot dipped galvanized finish for corrosion resistance in exterior applications
• AISI 1006-1022 steel construction for reliable shear and withdrawal strength
• Hex head drive compatible with standard sockets and box-end wrenches
• Meets ASME B18.2.1 dimensional standards for code-compliant installations
• 5/16 inch diameter with 4 inch length under head for deep penetration fastening

Compatibility

Designed as a standard hex head lag screw suitable for wood framing and structural fastening applications where a 5/16 inch hot dipped galvanized lag fastener is specified.

Installation Notes

Installation is typically performed by carpenters, general contractors, or trade professionals using a socket wrench or impact driver fitted with the appropriate hex socket. Always pre-drill a pilot hole sized to manufacturer and code recommendations to prevent wood splitting and reduce installation torque. Follow applicable building codes, including IBC and IRC requirements, for fastener spacing and penetration depth in structural connections. Inspect the galvanized coating before installation and avoid using fasteners with damaged coating in corrosive or wet environments.