Hillman 1/2 in. x 8 in. Hot-Dipped Galvanized Steel Carriage Bolts, Coarse Thread (25-Pack)

Regular price $79.99

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Hillman 1/2" x 8" Galvanized Carriage Bolts (25-Pack)

Heavy-duty Hillman carriage bolts secure wood-to-wood or wood-to-metal connections with a smooth, domed head for a clean finish. Hot-dipped galvanized steel delivers strong corrosion resistance for outdoor builds like decks, fences, and docks.


Key Features:

  • Corrosion-Resistant Finish: Hot-dipped galvanization stands up to weather and moisture for long-lasting performance
  • Secure, Flush Fit: Domed head and square neck lock into wood to prevent spinning and reduce the need for a washer
  • Reliable Strength: Grade 2 steel with coarse 1/2-13 threads for dependable holding power
  • Convenient Bulk Pack: 25-piece boxed set for multi-bolt projects and jobsite efficiency
  • Versatile Applications: Ideal for framing, deck construction, fencing, and other exterior wood assemblies

Specifications Table:

Specification Details
Diameter 1/2 inch
Length 8 inch
Thread Type Coarse, 1/2-13
Material Steel
Finish Hot Dipped Galvanized
Grade 2
Unit of Measurement SAE
Number in Package 25 pack
Packaging Type Boxed
Head Style Carriage (domed head with square neck)
Application Wood-to-wood or wood-to-metal fastening
Package Dimensions (L x W x H) 4.5 in x 9 in x 4 in
Package Weight 10.8 lbs

Frequently Asked Questions (FAQ):

Q: What size and thread are these bolts?
A: Each bolt is 1/2 inch diameter, 8 inches long, with coarse 1/2-13 threads.


Q: Are nuts and washers included?
A: No, this pack includes only carriage bolts; purchase compatible 1/2-13 nuts and washers separately if needed.


Q: Can these be used outdoors?
A: Yes. The hot-dipped galvanized finish provides strong rust resistance suitable for exterior applications.


Q: Do I need a tool to hold the head while tightening?
A: Typically no. The square neck beneath the head bites into wood to prevent spinning as you tighten the nut.


Q: What material are the bolts made from?
A: Steel, Grade 2.


Weathered Strength with a Clean, Crafted Finish

These carriage bolts bring a refined, utilitarian polish to outdoor structures—the domed head reads crisp and intentional against timber. I love the square-shoulder detail; it locks into wood for a seamless, hardware-minimal look. Use them rhythmically along deck joists or garden gates to create a subtle, architectural cadence. Durable and beautifully restrained, they’re an essential accent for elevated exterior carpentry.


Build with confidence—add these galvanized Hillman carriage bolts to your cart for long-lasting, outdoor-ready connections.

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