Hillman 5/16 in. x 5 in. Hot Dipped Galvanized Steel Carriage Bolt, 50-Pack
Regular price $46.99Hillman 5/16 in. x 5 in. Galvanized Carriage Bolts (50-Pack)
Durable steel carriage bolts with a hot-dipped galvanized finish to resist rust in outdoor and heavy-duty applications. The round head and square neck provide a clean, semi-flush look and self-locking grip in wood-to-wood or wood-to-metal projects. Ideal for decks, fencing, and structural framing.
Key Features:
- Rust-Resistant Finish: Hot-dipped galvanization for superior corrosion protection in outdoor environments
- Secure Hold: Square neck under the round head locks into wood to prevent spinning during installation
- Clean Appearance: Low-profile round head delivers a neat, semi-flush finish without a washer
- Heavy-Duty Construction: Grade 2 steel and coarse threads for reliable fastening strength
- Bulk Value Pack: 50 bolts per boxed package for larger projects
Specifications Table:
| Specification | Details |
|---|---|
| Finish | Hot Dipped Galvanized |
| Material | Steel |
| Length | 5 inch |
| Diameter | 5/16 inch |
| Thread Type | Coarse |
| Grade | 2 |
| Unit of Measurement | SAE |
| Number in Package | 50 pack |
| Packaging Type | Boxed |
| Category | Carriage Bolts |
Frequently Asked Questions (FAQ):
Q: What size drill bit should I use for these 5/16 in. carriage bolts?
A: Use a 5/16 in. hole for the shank; in wood, slightly undersize may improve neck bite. For metal, match 5/16 in. and deburr.
Q: Are these suitable for outdoor use?
A: Yes. The hot-dipped galvanized finish provides excellent rust protection for exterior projects like decks and fences.
Q: Do I need a washer with the round head?
A: Typically no; the broad round head provides a semi-flush finish. Use a nut and optional washer under the nut if desired.
Q: What nut and thread type pairs with these bolts?
A: These use coarse SAE threads; pair with matching 5/16 in. coarse-thread nuts.
Q: Can they be used in treated lumber?
A: Hot-dipped galvanized fasteners are appropriate for most pressure-treated lumber; always follow local code and lumber manufacturer guidance.
A clean, industrial accent with enduring strength
The rounded head of this carriage bolt lends a refined, minimal silhouette that whispers utility-chic. Its galvanized sheen brings a subtle, matte texture—perfect for modern rustic detailing on decks, gates, and furniture. Use it as a deliberate design element, lining up heads in symmetrical rows to create quiet rhythm across wood surfaces. It’s a hardworking staple that elevates function into effortless, everyday luxury.
Upgrade your project with rust-proof, clean-finished fastening—add this 50-pack of Hillman galvanized carriage bolts to your cart now.
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