Hillman 3/8 in x 5-1/2 in Hex Lag Screws in a zinc-plated steel finish deliver a robust, no-nonsense fastening solution for your wood-to-wood projects. With durable construction and a hex head designed for easy driving, these lag screws are built to withstand the demands of deck framing, fencing, and heavy-duty joinery—all in a convenient 50-count boxed package.
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Diameter and length: 3/8 in (0.375 in) diameter and 5-1/2 in long, providing deep engagement for strong, secure connections through thick timbers.
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Material and finish: Zinc-plated steel offers reliable corrosion resistance for indoor and outdoor use while maintaining strong bite into wood fibers.
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Head type: Hex head for straightforward driving with a wrench or socket, reducing cam-out and speeding up installation.
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Thread type: Coarse threads deliver quick holding power in softwoods and many common lumber species, great for fast, dependable assemblies.
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Grade: General-purpose Grade 2 lag screws designed for everyday structural joinery without sacrificing reliability.
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Packaging: Sold in a boxed 50-pack, making it easy to stock up for larger projects or repeated installations.
Perfect for a wide range of applications
These hex lag screws are ideal for mounting heavy components to wood, building sturdy deck frames, securing fence posts, and attaching thick timbers in furniture or shelving projects. Whether you’re working with pine, cedar, or pressure-treated lumber, the 3/8 in lag screw provides the bite and depth needed to create durable joints that stand the test of time.
Installation tips for best results
- Pre-drill a pilot hole to reduce the risk of wood splitting and to guide the screw straight for a cleaner, stronger connection.
- Use a hex wrench or socket driver to seat the screw fully and minimize cam-out; avoid overtightening to protect the wood fibers.
- If fastening through multiple boards or into harder lumber, consider using a pilot hole size appropriate for the wood species to ensure optimal grip and alignment.
- For outdoor or moisture-prone projects, the zinc-plated finish provides practical corrosion resistance, helping sustain join integrity over time.
Specifications at a glance:
- Product Type: Lag screw
- Brand: Hillman
- Diameter: 3/8 in
- Length: 5-1/2 in
- Material: Steel
- Finish: Zinc-Plated
- Thread Type: Coarse
- Head Type: Hex
- Grade: 2
- Count: 50 per box
- Packaging: Boxed
