The Hillman 5/8 in. x 2-1/2 in. Hex Zinc-Plated Steel Lag Screw, packaged as 25 strong fasteners, is built for dependable wood-to-wood connections where strength and lasting hold matter. With a hex head and coarse threads, this lag screw is ready to tackle framing, decking, fencing, and heavy-duty shelving projects with confidence.
Why this lag screw stands out
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Size and strength: 5/8" diameter with a 2-1/2" length delivers a robust anchor for thick wood or multi-layer assemblies, providing superior holding power in both softwood and hardwood.
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Zinc-plated finish: Weather- and corrosion-resistant coating helps protect against rust in outdoor or damp environments, extending the life of your installation.
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Hex head, coarse-thread design: The hex head accepts a standard wrench, socket, or driver for fast, controlled driving, while the coarse threads bite quickly into wood for a solid grip.
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Grade 2 steel: A dependable, general-purpose fastener that performs well in everyday framing, shelving, and mounting tasks.
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Package of 25: Convenient boxed packaging keeps your project on track and your hardware organized for future use.
Ideal applications
- Decking and railing installations where a strong, long-lasting connection is required.
- Wood-framed shelving, mezzanines, or heavy-duty brackets that demand reliable withdrawal resistance.
- Fence posts, pergolas, and other outdoor structures that benefit from zinc protection against the elements.
- Structural framing or repairs where a secure, flush mounting is desired.
How to use it effectively
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Pre-drill when needed: To minimize wood splitting, start with a pilot hole appropriate for your wood type and the lag size, then drive with a hex driver or socket.
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Drive with steady torque: Use a torque-controlled driver or a square-drive bit to prevent over-tightening, which can strip the wood or the screw head.
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Align for strength: Ensure the screw is perpendicular to the surface for maximum load-bearing capacity and a clean, flush finish.
What you gain with this Hillman lag screw
- A reliable, long-lasting fastener that combines a strong grip with practical ease of installation.
- A versatile option for both indoor and outdoor projects, thanks to the durable zinc-plated finish.
- A consistent supply of spare fasteners in one boxed package, making it easy to complete multiple projects or stock up for future jobs.
Whether you're building a sturdy deck frame, securing heavy shelves, or anchoring fence posts, the Hillman 5/8 in. x 2-1/2 in. hex lag screw in a 25-pack offers the right balance of size, strength, and corrosion resistance to get the job done right the first time.
