Take on outdoor woodworking projects with confidence using the HILLMAN 1/2 in. x 4 in. L Hex Stainless Steel Lag Screw (25 pk). Built from corrosion-resistant stainless steel and sized for robust framing, these hex-head lag screws are designed to deliver a secure, long-lasting hold in timber projects—from decks and fences to pergolas and timber framing.
Why this Hillman lag screw stands out
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Stainless steel construction delivers superior rust resistance for exterior use, damp environments, or coastal settings, so your connections stay strong year after year.
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Hex head for easy driving (with a standard hex wrench or driver) provides high torque and less cam-out, making installation quicker and more precise, even in tight spots.
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1/2 in. diameter x 4 in. length creates a substantial bite and deep embedding in lumber, providing reliable load-bearing capacity for framing and structural connections.
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Coarse thread bites quickly into softwood and many hardwoods, delivering a firm grip with fewer predrilled turns than fine-thread screws.
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25-pack boxed gives you a ready supply for multi-project jobs, repairs, or seasonal maintenance without multiple trips to the store.
Ideal uses
- Deck frame connections, fence posts, pergola installations, and heavy timber assemblies.
- Attaching rails, brackets, or hardware to pressure-treated lumber where a strong, long-lasting fastener is needed.
- Outdoor furniture or sheds built with thick timber where you need dependable withdrawal resistance.
Practical tips for best results
- Predrill a pilot hole to reduce the risk of splitting and to ensure the screw seats securely.
- Use a hex driver or socket to apply steady torque; avoid over-tightening to prevent timber damage.
- Pair with appropriate weatherproof sealants or washers if mounting hardware in moisture-prone areas.
Whether you're renovating an outdoor space or building a new timber structure, these Hillman lag screws combine strength, durability, and value in a practical 25-pack that keeps your projects moving forward.
