Hillman Zinc-Plated 3/8 in. x 1-1/2 in. Carriage Bolts (100-Pack)

Durable zinc-plated steel carriage bolts for fastening wood to wood or metal with a clean, semi-flush finish. Coarse threads and a square neck lock into wood to prevent spinning during installation. Ideal for indoor projects and general construction tasks.

Key Features:

• Strong Steel Construction: Grade 2 steel for dependable fastening in woodworking and light structural applications
• Corrosion-Resistant Finish: Zinc plating offers consistent appearance and rust resistance for indoor use
• Clean, Semi-Flush Look: Rounded head eliminates need for a washer in many applications
• Self-Locking Square Neck: Prevents bolt rotation for easier installation
• Bulk Value Pack: 100-piece boxed set for jobsite or shop stocking

Specifications Table:

Frequently Asked Questions (FAQ):

Q: Are these suitable for outdoor use?
A: Zinc plating provides some rust resistance, but for long-term exterior exposure, consider hot-dip galvanized or stainless options.

Q: Do I need a washer under the head?
A: The domed carriage head is designed to provide a semi-flush finish without a washer in many applications.

Q: What thread type do these bolts have?
A: They feature coarse SAE threads.

Q: What materials can I fasten with these?
A: Designed to fasten a wooden face to a wood or metal frame; the square neck locks into wood to prevent spinning.

Q: What size are these bolts?
A: Diameter 3/8 inch with a length of 1-1/2 inches.

A Clean, Classic Fastener for Crafted Woodwork

The domed silhouette and zinc sheen bring a refined, utilitarian elegance to cabinetry, benches, and custom storage. I love the square-neck detail—it bites into wood for a smooth, unbroken face that feels tailored. Pair with pale oak and matte black brackets for a modern workshop aesthetic. Essential hardware that quietly elevates everyday builds to luxe, thoughtful design.

Stock your shop with this 100-pack of zinc-plated carriage bolts for reliable, clean-looking assemblies that last.