Hillman 5/16 in. x 3 in. Hot-Dipped Galvanized Steel Carriage Bolts, 100-Pack
Regular price $57.995/16 in. x 3 in. Galvanized Carriage Bolts (100-Pack)
Durable Hillman carriage bolts made from steel with a hot-dipped galvanized finish for superior rust resistance. Ideal for fastening wood to wood or wood to metal, the round head and square neck provide a clean, semi-flush finish and self-locking grip.
Key Features:
- Corrosion Protection: Hot-dipped galvanized finish resists rust for outdoor and coastal applications
- Secure Hold: Square neck locks into wood to prevent spinning during tightening
- Clean Finish: Low-profile round head eliminates need for a washer in many installs
- Reliable Strength: Grade 2 steel with coarse threads for dependable fastening
- Bulk Value: 100-count boxed pack for jobsite and shop efficiency
Specifications Table:
| Specification | Details |
|---|---|
| Diameter | 5/16 inch |
| Length | 3 inch |
| Material | Steel |
| Finish | Hot Dipped Galvanized |
| Grade | 2 |
| Thread Type | Coarse |
| Unit of Measurement | SAE |
| Number in Package | 100 pack |
| Packaging Type | Boxed |
| Head Style | Round head carriage bolt |
| Neck Style | Square neck, self-locking |
| Category | Carriage Bolts |
Frequently Asked Questions (FAQ):
Q: What size are these carriage bolts?
A: They are 5/16 inch diameter and 3 inches in length with coarse threads.
Q: What materials are these suitable for?
A: They’re designed to fasten a wooden face to either a wood or metal frame.
Q: Are they rust resistant for outdoor use?
A: Yes, the hot-dipped galvanized finish offers strong corrosion protection for exterior applications.
Q: Do I need a washer under the head?
A: Typically no—the round head is designed to provide a semi-flush finish without a washer.
Q: How many bolts are in the package?
A: 100 bolts come in a boxed retail pack.
Understated Hardware, Elevated Finish
The soft dome head and muted galvanized sheen bring a quiet sophistication to exposed hardware moments. I love the square-neck detail—it nests into wood for a tailored, seamless look. Use these to secure bench slats or deck accents where the hardware becomes part of the design story. A dependable, polished touch for luxe, lived-in spaces.
Choose Hillman galvanized carriage bolts for a clean, secure install that stands up to the elements—order your 100-pack today.
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