Hillman 5/8 in. D X 3 in. L Hot Dipped Galvanized Steel Hex Bolt 25 pk is built for outdoor durability and reliable, long-lasting fastenings. This hex bolt combines a robust Grade 2 steel core with a thick hot-dipped galvanized coating, delivering corrosion resistance that stands up to rain, humidity, and outdoor exposure. If you’re assembling decks, fences, or outdoor furniture, this bolt is designed to perform when other fasteners sag.
Key features that matter
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Size and strength: 5/8 in. hex head (head diameter 0.625 in / ~16 mm) and 3 in. overall length, crafted from dependable Grade 2 steel for everyday fastening tasks.
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Superior corrosion protection: Hot-dipped galvanized coating forms a rugged zinc layer that resists rust in wet or outdoor environments, extending the life of your installation.
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Thread type: Coarse threads provide quick, dependable engagement in wood and softer metals, reducing the risk of cross-threading during installation.
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Practical packaging: 25 bolts per boxed package, ideal for small projects, maintenance kits, or ongoing repairs without constant re-stocking.
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Material and finish details: Durable steel with a protective galvanized finish that maintains appearance and strength over time, even in exposed settings.
Ideal applications and use cases
- Deck construction, fence assemblies, pergolas, and outdoor furniture where moisture exposure is a factor.
- Wood-to-wood fastenings or securing light-duty structural components in barns, sheds, and patios.
- Repairs and retrofits in damp environments where a dependable, corrosion-resistant bolt is required.
How this bolt stands out from the basics
- The hot-dip galvanizing process delivers thicker, more uniform protection than basic coatings, helping prevent rust and staining in exterior projects.
- Bulk 25-pack minimizes trips to the store mid-project and ensures you have spares for future maintenance.
- Coarse threading facilitates faster installation in wood, especially when you need to secure components quickly without sacrificing grip.
Practical tips for best results
- Pair with a compatible nut and washer to create a secure, vibration-resistant connection.
- Pre-drill pilot holes in hardwood to prevent splitting and ensure clean driving of the bolt.
- Confirm compatibility with your project materials and, if needed, use corrosion-resistant nuts to maximize longevity in outdoor setups.
Specifications at a glance
- Brand: Hillman
- Finish: Hot Dipped Galvanized
- Grade: 2
- Head Diameter: 5/8 in (approximately 16 mm)
- Length: 3 in (approximately 76 mm)
- Material: Steel
- Thread Type: Coarse
- Package Quantity: 25 bolts
- Unit of Measurement: Metric (dimensions provided in inches with mm equivalents)
