Meet the Hillman No. 1/4-20 x 1 in. Combination Truss Head Zinc-Plated Steel Machine Screws—the dependable fasteners you reach for when you need a broad, secure bearing surface and reliable metal-to-metal or bracket-to-panel connections. Sold in a convenient 100-pack, these screws are ready for assembly projects, maintenance, and repairs that demand consistency and durability.
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Size & thread: 1/4 in diameter, 20 threads per inch (1/4-20), coarse thread for strong bite and versatile use with nuts or tapped holes.
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Length: 1 inch, a balanced option for medium-depth mounting.
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Head type: Truss head with a broad bearing surface to distribute load and reduce pull-out in brackets and hardware connections.
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Material & finish: Zinc-plated steel for corrosion resistance suitable for indoor and outdoor environments.
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Drive style: Combination drive (accepts both slotted and Phillips bits); driver bit not included.
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Self-setup features: Not self-drilling or self-tapping—requires pre-drilled or tapped holes and compatible nuts or threaded inserts.
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Packaging: Boxed, 100 screws per package, ideal for ongoing projects and inventory replacement.
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Applications: Perfect for securing brackets, metal panels, and fixtures to metal workpieces where a flush, even load is needed—works well in both interior assemblies and outdoor setups where a durable zinc finish helps resist the elements.
Why this Hillman combination screw stands out
Unlike generic fasteners, these machine screws pair a robust 1/4-20 coarse thread with a wide truss head that minimizes surface damage while maximizing contact area. The zinc-plated finish provides dependable corrosion resistance for everyday projects—from garage shelving brackets to utility panels—so you won’t have to sprint to the hardware store for replacements mid-task. The combination drive adds versatility on the job, letting you work with either slotted or Phillips bits using the same screw geometry.
Ideal use scenarios
- Attaching metal brackets to framing or panels in furniture, shelving, or storage solutions.
- Securing hardware to metal enclosures, electrical boxes, or equipment housings where a solid, non-wobbly mount matters.
- Fastening components in DIY projects that require nuts or tapped holes, rather than wood-specific fasteners.
Pro tips for best results
- Ensure you have the correct mating hardware (nuts or tapped holes) for a secure connection with 1/4-20 threads.
- Use the combination drive to adapt to available bits—no need to carry multiple driver types.
- Check the environment: while zinc plating offers good indoor/outdoor performance, consider stainless steel for highly corrosive or marine settings.
