Hillman 1/2 in. x 3-1/2 in. Zinc-Plated Steel Carriage Bolt, 25-Pack
Regular price $36.99Hillman 1/2" x 3-1/2" Zinc-Plated Carriage Bolts (25-Pack)
Heavy-duty Grade 2 steel carriage bolts with a corrosion-resistant zinc-plated finish for secure wood-to-wood or wood-to-metal fastening. The rounded, low-profile head with square neck locks into wood to prevent spinning and allows a semi-flush finish. Ideal for decks, fences, and general construction projects.
Key Features:
- Secure Wood Fastening: Square neck locks into wood to prevent bolt spin during tightening
- Rust-Resistant Finish: Zinc plating provides durable, consistent corrosion protection
- Low-Profile Head: Rounded carriage head delivers a clean, semi-flush look without a washer
- Heavy-Duty Steel: Grade 2 steel construction for reliable strength in structural applications
- Bulk Value Pack: 25 bolts per box for project efficiency
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Hillman |
| Finish | Zinc Plated |
| Grade | 2 |
| Length | 3-1/2 inch |
| Material | Steel |
| Number in Package | 25 |
| Packaging Type | Boxed |
| Thread Type | Coarse |
| Unit of Measurement | SAE |
| Diameter | 1/2 inch |
Frequently Asked Questions (FAQ):
Q: What materials can these carriage bolts fasten?
A: They are designed for fastening a wooden face to either a wood or metal frame, commonly used in decks, fences, and framing.
Q: Do I need a washer under the head?
A: Typically no—the flat, rounded carriage head is designed to provide a semi-flush finish without a washer.
Q: Are these suitable for outdoor use?
A: The zinc plating offers rust resistance for many applications, but may not be ideal for harsh exterior environments; consider hot-dip galvanized for extreme exposure.
Q: What thread type do these bolts use?
A: They feature coarse SAE threads.
Q: What size and length are included in this pack?
A: Each bolt is 1/2 inch diameter by 3-1/2 inches in length; 25 bolts per retail package.
A Clean, Polished Fastener for Timeless Woodwork
The rounded carriage head brings a refined, minimalist touch to exposed joinery, elevating everyday builds with a sleek, polished sheen. I love the square-neck detail—it locks into place, keeping lines crisp and surfaces uninterrupted. Use these on a painted garden gate or a natural wood bench to let the hardware quietly shine. Essential for luxe, lasting craftsmanship that feels both sturdy and sophisticated.
Choose this 25-pack of zinc-plated Hillman carriage bolts for clean, secure wood-to-metal connections that last.
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