Hillman 3/4 in. D x 3 in. L Heat Treated Zinc Steel Hex Head Cap Screw — a robust, corrosion-resistant fastener designed to deliver reliable grip in a range of projects. With a heat-treated zinc finish and Grade 5 strength, this 20-pack is ready for assembly tasks that demand lasting performance and consistent results.
Key specifications
- 3/4 inch head diameter, 3 inch length, coarse thread for fast, secure engagement
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Material and finish: Steel with heat-treated zinc coating for enhanced hardness and corrosion resistance
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Grade: 5, delivering solid strength for everyday fastening needs
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Head type: Hex head cap screw for straightforward driving with standard wrenches or sockets
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Package: 20 pieces per box, boxed for convenient storage and project-ready use
Why this screw stands out
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Durable, long-lasting performance: Heat-treating increases hardness and wear resistance, helping the screw hold tight under vibration and load.
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Corrosion resistance where it counts: The zinc-coated finish protects against rust in indoor and sheltered outdoor environments, extending the life of your assemblies.
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Versatile engagement: Coarse threads bite quickly into soft woods and light metals, delivering reliable clamping without stripping or wobble.
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Reliable Hillman quality: Built to consistent tolerances from trusted steel, so you won’t encounter surprises on the job site.
Ideal uses and practical applications
Perfect for furniture assembly, deck and framing projects, equipment mounting, and general fastener tasks where a strong, easily driven screw is needed. Use in softwoods, plywood, or compatible light-gauge metals where a hex head cap screw is appropriate. The 3-inch length provides ample thread engagement for secure joints without excessive protrusion.
Tips for best results
- Choose the correct driver size to ensure a snug fit and reduce cam-out when driving the hex head.
- Pre-drill in hardwoods or dense materials to prevent splitting and to achieve cleaner drive and clamping.
- Confirm material compatibility: the coarse thread is ideal for softer substrates, while the heat-treated finish adds durability for repeated assemblies.
- Store the boxed pack in a dry location to preserve the zinc finish and prevent corrosion over time.
Whether you’re building a sturdy frame, repairing furniture, or completing a deck project, this Hillman 3/4 in. D x 3 in. L hex head cap screw delivers dependable strength, practical installation, and a finish that stands up to the elements — all in a convenient 20-pack.
