5/16 in. x 5 in. Zinc Carriage Bolts, 50-Pack

Zinc-plated steel carriage bolts for fastening wood to wood or metal with a smooth, low-profile dome head. Square shoulder locks into the material to prevent spinning and often eliminates the need for a washer, ideal for carts, fixtures, and general repairs.

Key Features:

• Durable Zinc-Plated Steel: Moderate corrosion resistance with a consistent finish
• Secure Square Shoulder: Locks into wood to prevent bolt rotation during tightening
• Low-Profile Dome Head: Creates a semi-flush, snag-resistant appearance
• Versatile Fastening: Designed to fasten wood to wood or wood to metal
• Contractor Value Pack: 50 pieces for projects and stock replenishment

Specifications Table:

Frequently Asked Questions (FAQ):

Q: What materials can these carriage bolts be used with?
A: They are designed to fasten a wood face to either wood or metal framing.

Q: Do I need to pre-drill holes?
A: Yes—drill a hole matching the bolt diameter (5/16 in.) for best results.

Q: Are washers required?
A: Often no; the square shoulder locks into the wood, which can eliminate the need for a flat washer.

Q: Is the zinc finish suitable for outdoor use?
A: Zinc plating offers moderate corrosion resistance and is fine for many indoor and sheltered outdoor applications; for harsh outdoor environments, consider hot-dipped galvanized or stainless options.

Q: What length are the bolts?
A: 5 inches long with a 5/16-inch diameter.

Streamlined Strength with a Polished Industrial Edge

These carriage bolts bring a clean, domed silhouette that quietly elevates utilitarian builds. The zinc sheen lends a crisp, tailored touch while the square shoulder detail feels thoughtfully engineered. Use them to give garden carts, benches, or utility shelving a refined, cohesive hardware moment. Functional and poised, they’re the subtle hardware essential that completes a luxe, hardworking space.

Outfit your next project with these durable, easy-install Hillman carriage bolts and get a clean, secure finish that lasts.