3/8 in. x 4-1/2 in. Galvanized Carriage Bolts (50-Pack)

Heavy-duty Hillman carriage bolts designed for fastening wood to wood or wood to metal. Hot-dipped galvanized steel resists rust and corrosion for long-lasting outdoor performance.

Key Features:

• Corrosion Resistant: Hot-dipped galvanized finish stands up to moisture and outdoor exposure
• Secure Hold: Square neck locks into wood to prevent spinning during installation
• Clean, Low-Profile Head: Dome head provides a semi-flush finish—no washer needed under head
• Versatile Use: Ideal for decks, fences, and general construction fastening
• Bulk Value: 50-pack for efficient project coverage

Specifications Table:

Frequently Asked Questions (FAQ):

Q: What materials are these bolts made from?
A: Steel with a hot-dipped galvanized finish for enhanced corrosion resistance.

Q: What size are the bolts?
A: Diameter 3/8 inch with a length of 4-1/2 inches and coarse threads.

Q: Are nuts included?
A: Nuts are typically sold separately; check your hardware selection to pair with 3/8 in. coarse-thread nuts and washers as needed.

Q: Can these be used outdoors?
A: Yes, the hot-dipped galvanization makes them suitable for exterior applications and treated lumber.

Q: Do I need a special tool to install them?
A: No driving tool is required for the head; use a wrench on the nut while the square neck seats into the wood to prevent spinning.

A Clean, Classic Fastener for Timeless Outdoor Builds

The gentle dome of the carriage head delivers a refined, unobtrusive look that keeps surfaces visually calm. I love how the square neck disappears into the timber, leaving a tidy, architectural finish. Use them to detail a garden gate or bench where hardware should feel intentional, not loud. Durable galvanization makes them a quiet luxury essential for outdoor structures that age gracefully.

Choose this 50-pack of galvanized carriage bolts for reliable, clean-looking fastening on your next deck, fence, or outdoor build.