Hillman 5/16-18 in. USS Hex Nut in zinc-plated steel is engineered for dependable fastening across a wide range of projects. This Grade 2, coarse-thread hex nut is designed to pair with standard 5/16-18 bolts, delivering steady clamping and reliable bite in both metal and wood assemblies. Packed in a boxed, bulk 2,272-piece quantity, it’s an ideal choice for professional shops, maintenance crews, and serious DIYers who value consistency and ready availability.
Key specifications
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Product type: Hex Nut
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Size & thread: 5/16-18 (USS coarse thread)
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Material: Steel
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Finish: Zinc-Plated
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Grade: 2
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Thread type: Coarse
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Packaging: Boxed
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Count: 2,272 pieces
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Brand: Hillman
Versatile use cases
Whether you’re installing shelving, building a fence, repairing machinery, or assembling cabinetry, these 5/16-18 hex nuts deliver dependable performance with standard bolts. The zinc-plated finish adds a layer of corrosion protection for everyday indoor projects and moderate outdoor exposure, helping fixtures stay secure over time.
Why this Hillman hex nut stands out
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Bulk reliability: A large, boxed quantity keeps your job site stocked, reduces downtime, and simplifies inventory management for crews and hobbyists alike.
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Concrete compatibility with standard hardware: Coarse-thread design accepts quick-start threading with 5/16-18 bolts, meaning faster assemblies and fewer cross-threading issues.
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Durable material and finish: Steel construction paired with zinc plating provides solid strength and basic corrosion resistance for everyday environments.
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Trusted brand: Hillman’s long-standing presence in the hardware world assures compatibility with common fastener systems and industry standards.
Pro tips for best results
- Pair these hex nuts with matching 5/16-18 bolts for standard assemblies, and tighten using a wrench or socket that fits the hex profile to avoid rounding corners.
- Keep the boxed set organized in a dedicated fastener drawer or bin to streamline project setup and reordering.
- Consider project environment; for harsher outdoor exposure, evaluate additional protective finishes or coatings beyond zinc plating depending on long-term conditions.
