Hillman 5/16 in. x 2-1/2 in. Hot-Dipped Galvanized Steel Carriage Bolt, 100-Pack
Regular price $46.99Hillman 5/16 in. x 2-1/2 in. Galvanized Carriage Bolts (100-Pack)
Heavy-duty Hillman carriage bolts secure wood-to-wood or wood-to-metal connections with a smooth, low-profile dome head. Hot-dipped galvanized steel resists rust for outdoor and marine projects, while the square neck locks into place to prevent spinning during installation.
Key Features:
- Corrosion Resistance: Hot-dipped galvanized steel stands up to weather and moisture.
- Secure Hold: Square neck under head bites into wood to prevent bolt spin.
- Clean, Low-Profile Finish: Dome head eliminates need for a washer in many applications.
- Bulk Value: 100 bolts per box for jobsites and large projects.
- SAE Coarse Threads: Grade 2 steel with coarse threading for quick assembly.
Specifications Table:
| Specification | Details |
|---|---|
| Diameter | 5/16 inch |
| Length | 2-1/2 inch |
| Material | Steel |
| Finish | Hot Dipped Galvanized |
| Grade | 2 |
| Thread Type | Coarse (SAE) |
| Head Style | Carriage (dome head) with square neck |
| Number in Package | 100 pack |
| Packaging Type | Boxed |
Frequently Asked Questions (FAQ):
Q: What size are these carriage bolts?
A: They are 5/16 inch diameter by 2-1/2 inch length with SAE coarse threads.
Q: Are nuts and washers included?
A: No. This package includes bolts only; purchase compatible 5/16 in. nuts and washers separately if needed.
Q: Can these be used outdoors?
A: Yes. The hot-dipped galvanized finish provides strong rust resistance suitable for exterior use.
Q: What materials can I fasten with these?
A: They are ideal for attaching wood to wood or wood to metal frames.
Q: What grade is the steel?
A: Grade 2 steel, appropriate for general-purpose fastening.
A Quiet, Rugged Detail for Seamless Outdoor Builds
The softened dome head offers a refined, unobtrusive accent against timber, delivering strength without visual clutter. I love the subtle matte texture of hot-dipped galvanizing—it feels authentically crafted and confidently durable. Use these in rhythmic intervals along a garden bench or gate to create a tailored, uniform line. It’s a small hardware choice that elevates structures into enduring, luxurious essentials.
Outfit your next project with these galvanized carriage bolts for lasting strength and a clean, professional finish—add the 100-pack to your cart today.
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