Hillman 1/2 in. x 4 in. Hot-Dipped Galvanized Steel Carriage Bolts, 25-Pack
SKU: 48906580604

Hillman 1/2 in. x 4 in. Hot-Dipped Galvanized Steel Carriage Bolts, 25-Pack

Sale price$41.39 Regular price$45.99
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Description

Hillman 1/2 in. x 4 in. Hot-Dipped Galvanized Steel Carriage Bolts, 25-Pack1 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

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:

Specification Details
Diameter 1/2 inch
Length 4 inch
Material Steel
Finish Hot Dipped Galvanized
Grade 2
Thread Type Coarse (SAE)
Head Style Round dome carriage head
Neck Style Square neck, self-locking in wood
Number in Package 25 pack
Packaging Type Boxed

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.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 48906580604

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C.W.
Lowell, US
★★★★★ 5
Easy to assemble. Still used for over a year 🙌🏾
Color: White, Size: 6 Panel
Everything is perfect! I would buy again in other colors and heights if I need additional separation in the basement.
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Reviewed in the United States on January 7, 2026
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Amazon Customer
Belleville, US
★★★★★ 3
Cheap Garbage
Color: Black, Size: 4 Panel
This item is just cheap crap. Shoddily put together, shoddy materials, and looks cheap. If you’re just putting it in a space that you don’t really care that it’s cheap, then it might be fine for what you need. But don’t expect much.
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Reviewed in the United States on April 15, 2026
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Angel
Whiting, US
★★★★★ 5
Keeps areas separated
Color: Black, Size: 6 Panel
Item arrived quickly. I use this to keep my cats out of a part of the cellar. Works great. They've figured out how to slip through side. I made a panel that covers those spots. Still the best item to keep area separate.
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Reviewed in the United States on January 9, 2026
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Coammom
Draper, US
★★★★★ 5
Nice panels
Color: Black, Size: 6 Panel
Gives good coverage, nice dark panels. Easy to assemble, light product and sturdy. I will recommend this item! Completely covers the back shelves that are for employees only.
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Reviewed in the United States on August 31, 2025
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Chris Stockbridge
Chelsea, US
★★★★★ 5
Worth the investment
Size: 1 Panel, Size: 1 Panel
I had to order this in an emergency. To put it in brief words, I live in a two level studio unit. My bedroom TV fell backwards off the bureau accidentally and down the stairs to its demise. Putting this together was no problem, instructions were thorough and easy. It came with several bars that connected together smoothly and an Allen key for the brackets and screws for the feet. I did one less horizontal bar on top and bottom so it could fit, which was great because with all of them on it was too long. However I ran into the difficulty of the horizontal bars popping out of the brackets during the last stages, but eventually got it done. I was also looking for a specific type of divider where I could adjust the feet so I could tuck it in between the dresser and banister. Glad I made this purchase.
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Reviewed in the United States on February 19, 2026

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