Hillman 5/16 in. x 4-1/2 in. Hot-Dipped Galvanized Steel Carriage Bolts, 50-Pack
SKU: 15869981220

Hillman 5/16 in. x 4-1/2 in. Hot-Dipped Galvanized Steel Carriage Bolts, 50-Pack

Sale price$37.79 Regular price$41.99
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Description

Hillman 5/16 in. x 4-1/2 in. Hot-Dipped Galvanized Steel Carriage Bolts, 50-PackHot Dipped Galvanized 5 16 in. x 4 1 2 in. Carriage Bolts (50 Pack) Durable Hillman carriage bolts for fastening wood to wood or wood to metal with a low profile, domed head. Hot dipped galvanized steel resists rust for long lasting outdoor performance in decks, fences, and general construction. Key Features: Corrosion Resistance: Hot dipped galvanized steel stands up to moisture and outdoor exposure Secure Hold: Square neck under the head locks into

Hot-Dipped Galvanized 5/16 in. x 4-1/2 in. Carriage Bolts (50-Pack)

Durable Hillman carriage bolts for fastening wood-to-wood or wood-to-metal with a low-profile, domed head. Hot-dipped galvanized steel resists rust for long-lasting outdoor performance in decks, fences, and general construction.


Key Features:

  • Corrosion Resistance: Hot-dipped galvanized steel stands up to moisture and outdoor exposure
  • Secure Hold: Square neck under the head locks into wood to prevent spinning during tightening
  • Clean Finish: Dome head provides a semi-flush, washer-free appearance
  • Coarse Thread: SAE coarse thread for quick assembly and strong grip
  • Bulk Value: 50 bolts per box for efficient project coverage

Specifications Table:

Specification Details
Brand Hillman
Diameter 5/16 inch
Length 4-1/2 inch
Material Steel
Finish Hot Dipped Galvanized
Grade 2
Thread Type Coarse (SAE)
Head Style Carriage (domed) with square neck
Number in Package 50 pack
Packaging Type Boxed

Frequently Asked Questions (FAQ):

Q: What materials can these carriage bolts fasten?
A: They are designed primarily for fastening wood to wood or wood to metal frames.


Q: Do I need a washer under the head?
A: Typically no—the domed head is designed to sit semi-flush without a washer, though washers and nuts may be used on the threaded end as needed.


Q: Are these suitable for outdoor use?
A: Yes, the hot-dipped galvanized finish provides strong rust resistance for exterior projects.


Q: What thread type do these bolts use?
A: SAE coarse thread.


Q: What grade are these bolts?
A: Grade 2 steel, suitable for general-purpose structural and carpentry applications.


A Clean, Workmanlike Finish for Outdoor Woodwork

There’s a quiet elegance in hardware that disappears into the craft. These galvanized carriage bolts offer a soft, domed cap that reads crisp and intentional on decks, gates, and garden structures. I love the square-neck detail—hidden, yet essential—keeping the face smooth and composed. Use them in rhythmic rows along a cedar fence for a tailored, architectural touch that also lasts; consider these a small luxury of smart construction.


Choose these galvanized carriage bolts for a clean, durable fasten that elevates your next outdoor build.

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: 15869981220

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frequentbuyer
Omaha, US
★★★★★ 4
Stylish and affordable!
Color: Grey, Size: 4 Pack, Color: Grey, Size: 4 Pack
These shelves are rey stylish, light and durable! The set came with everything needed to install. The color is just as described. Price is steal and these shelves can definitely be used anywhere throughout the house. I did give it only 4 stars because as you can see in the photos, the underneath was not completely finished. Decided to keep because the price was unbeatable.
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Reviewed in the United States on April 5, 2026
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todd
Carnegie, US
★★★★★ 5
Great shelves
Color: Mahogany, Size: 2 Pack
Love these! Easy install and they look great. Very sturdy.
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Reviewed in the United States on May 14, 2026
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Hannah
Belleville, US
★★★★★ 5
Easy to Hang
Color: Black, Size: 3 Pack
This shelf is easy to hang, comes with great anchors and looks perfect. The quality looks nice and is was an easy hanging process compared to other shelves. Worth it for the price.
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Reviewed in the United States on May 18, 2026
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B from RI
Port Orchard, US
★★★★★ 5
One of the best deals available!
Color: White, Size: 2 Pack
Extremely sturdy, good looking and easy to install. I have a couple of dozen feet of assorted lengths in the kitchen, bedroom, living room and foyer. Holding all sorts of antique clocks, audio equipment and cooking stuff from my flours and assorted cornmeals to cases of powdered “lemonade”.
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Reviewed in the United States on April 18, 2026
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JJW
Lexington, US
★★★★★ 3
Mounting system doesn’t align on one of three shelves.
Color: Walnut, Size: 3 Pack
Nice shelves. Install was super easy except on one of the three shelves. The main mounting shelf holes were off so the shelf will not slip onto horizontal mounting poles unless I modify the shelf. So a 20 minute job becomes a two hour job. The mounting system does appear very sturdy just not aligned.
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Reviewed in the United States on January 4, 2026

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