1/2 x 5 Hex Lag Screws - Galvanized Box/25

Overview

The 1/2 x 5 Hex Lag Screws – Galvanized Box/25 (05598) is designed for heavy-duty fastening applications including timber-to-timber connections and wood-to-masonry or concrete installations.

Technical Features

• 1/2 in. diameter x 5 in. length: Large-format sizing provides the deep thread engagement required for load-bearing and structural fastening tasks.
• Hexagonal head design: Enables installation with a wrench or socket driver, allowing high torque application without head cam-out — critical for driving into dense or heavy timber.
• Galvanized finish: Provides corrosion resistance, making these lag screws suitable for exterior, treated-lumber, and moisture-exposed environments.
• Box of 25: Sold in a standardized quantity suitable for project-scale purchasing, reducing per-unit cost on larger installations.
• Heavy-duty thread profile: Like all lag screws, the coarse thread pattern is engineered to grip wood fibers securely, resisting pull-out forces under load.

Applications

• Fastening heavy timbers to one another in structural framing, decking, and post connections.
• Securing wood members to masonry or concrete substrates when used with appropriate anchors.
• Deck construction, pergola assembly, ledger board attachment, and heavy structural joinery.
• Any application requiring a large-diameter, high-strength threaded fastener with corrosion-resistant properties.