Introducing the Hillman 3/8 in. x 8 in. Hex Head Cap Screw—a sturdy, long-length fastener built for demanding projects where strength and reliability matter. Crafted from heat-treated steel and finished in zinc, this Grade 5 screw delivers durable performance with corrosion resistance, all neatly packed in a boxed set of 50.
Key specs at a glance
- Brand: Hillman
- Finish: Heat Treated Zinc
- Grade: 5
- Head Diameter: 3/8 in
- Length: 8 in
- Material: Steel
- Thread Type: Coarse
- Packaging: Boxed
- Count: 50 per box
Why this screw stands out
Heat-treated steel strengthens the shank to resist bending under load, making it a reliable choice for heavy-duty assemblies. The zinc finish provides practical corrosion protection for indoor and sheltered outdoor environments, helping your projects stay secure over time. With a coarse thread, these screws bite quickly into wood and softer metals, easing alignment and installation and delivering solid grip without cross-threading when paired with the right nut or tapped hole.
Ideal uses
- Wood-to-metal and wood-to-wood connections in framing, decking, and furniture assembly.
- Mounting machinery, brackets, and fixtures to structural members where a long, strong fastener is needed.
- Garage, workshop, and farm projects that demand reliable, repeatable fastening in variable environments.
- Outdoor structures in non-salt environments where you want a cost-effective, hard-wearing option.
Installation and use tips
- Pair with a compatible nut or tapped holes for secure joints; ensure threads engage cleanly to avoid cross-threading.
- Pre-drill pilot Holes in hardwoods to prevent splitting and reduce driving effort in dense materials.
- Use the appropriate wrench or socket to apply steady torque. Avoid over-tightening to preserve thread integrity and clamping force.
- Store in the boxed packaging to keep the 50-piece supply organized and ready for the next project.
Choosing the right fastener for your needs
If your project calls for a balance of strength, ease of installation, and cost, the Hillman 3/8 in. x 8 in. Hex Head Cap Screw delivers dependable performance. For applications demanding maximum corrosion resistance in harsh, coastal, or salt-heavy environments, consider alternatives designed for superior rust resistance. This Hillman screw provides a practical, versatile option for general-purpose structural and mechanical fastening tasks.
