1/2 in. x 8 in. Zinc Carriage Bolts (25-Pack)

Heavy-duty Hillman carriage bolts fasten wood to wood or metal with a smooth, low-profile head for a clean finish. Zinc-plated steel offers moderate corrosion resistance for indoor and sheltered outdoor projects.

Key Features:

• Multi-Material Fastening: Securely attaches a wood face to wood or metal frames
• Low-Profile Head: Domed, smooth head sits semi-flush for a clean look and snag-free surface
• Washer-Free Locking: Square neck bites into wood to prevent spin and eliminate the need for a flat washer
• Corrosion-Resistant: Zinc-plated steel provides moderate rust protection
• Installation Tip: Pre-drill a hole matching the bolt diameter for best results

Specifications Table:

Frequently Asked Questions (FAQ):

Q: What size and length are these bolts?
A: They are 1/2 inch diameter by 8 inches long.

Q: Do I need a washer under the head?
A: No— the square shoulder locks into the wood, eliminating the need for a flat washer under the head.

Q: Are these suitable for outdoor use?
A: The zinc plating offers moderate corrosion resistance; for harsh outdoor environments, consider hot-dipped galvanized or stainless options.

Q: What tools are required for installation?
A: Pre-drill a 1/2 in. hole and tighten with a matching nut and wrench; the square neck prevents the bolt from spinning.

Q: How many bolts are in the pack?
A: 25 pieces per retail package.

Sleek Strength for Clean, Crafted Joins

A domed, polished head sits quietly against wood, lending a tailored finish to hardworking assemblies. I love the subtle geometry of the square neck—hidden strength that keeps lines crisp and uncluttered. Pair these with warm, knotty timbers or painted millwork to create refined, durable connections that feel intentionally designed. It’s the kind of detail that elevates utility into everyday luxury.

Choose Hillman’s zinc carriage bolts to achieve secure, clean-looking joins that last—add this 25-pack to your project today.