1/2 in. x 4 in. Galvanized Carriage Bolts (25-Pack)

Heavy-duty Hillman carriage bolts secure wood-to-wood or wood-to-metal connections with a smooth, low-profile dome head. Hot-dipped galvanized steel resists corrosion for outdoor and marine projects, while the square neck locks into wood to prevent spinning during tightening.

Key Features:

• Outdoor-Ready Protection: Hot-dipped galvanized steel resists rust and corrosion in harsh weather.
• Secure, Spin-Free Install: Square neck seats into wood to hold the bolt while you tighten the nut.
• Clean, Low-Profile Head: Round dome head delivers a semi-flush finish without a separate washer.
• Strong, Versatile Build: Grade 2 steel with coarse threads ideal for deck, fence, and general framing.
• Bulk Value Pack: 25 bolts per box for efficient project coverage.

Specifications Table:

Frequently Asked Questions (FAQ):

Q: What size are these carriage bolts?
A: They are 1/2 inch diameter and 4 inches in length with coarse threads.

Q: Are nuts and washers included?
A: No—this pack includes bolts only; purchase compatible 1/2 in. coarse-thread nuts and washers separately if needed.

Q: Can these be used outdoors?
A: Yes, the hot-dipped galvanized finish provides excellent corrosion resistance for exterior applications.

Q: What tools do I need for installation?
A: Drill a 1/2 in. hole, tap the square neck into the wood to lock, then tighten with a wrench on the nut side.

Q: What grade are the bolts?
A: Grade 2 steel, suitable for general-purpose structural and framing tasks.

Sculpted Strength for Outdoor Architecture

The rounded carriage head brings a refined, almost jewelry-like detail to gates, pergolas, and timber frames. I love how the smooth dome sits flush against wood, letting the grain remain the star. Pair these galvanized bolts with weathered cedar and matte black hardware for a balanced, artisanal look. Consider them the quiet luxury essential that keeps outdoor structures beautiful and enduring.

Build with confidence—choose these galvanized carriage bolts for long-lasting, weather-ready connections.