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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Kayy
Whiting, US
★★★★★ 5
Came fast and fit well
Number of Items: 1, Color: Black, Size: X-Small
fit well and was good quality. definitely a good deal
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Reviewed in the United States on February 9, 2026
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Justin Templeton
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★★★★★ 5
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Worth the money, adorable, cute, easy to match, and just love them for our daughter! Great price for 5 shirts! We did get a small for our little one who is tall, 36lbs, 4t-5t they are a little big but gives her room to enjoy more and longer.
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Reviewed in the United States on October 2, 2025
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Massapequa, US
★★★★★ 5
Girls shirts
Great set of girls long sleeve tshirts
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Reviewed in the United States on May 11, 2026
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Kindle Customer
Whiting, US
★★★★★ 3
Fits well
Number of Items: 5, Color: Blue/Green/Pink/Purple/White Unicorn, Size: Medium
Cute on, but material isn’t real comfortable. The fit is good
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Reviewed in the United States on August 11, 2025
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DeRobinson
Chelsea, US
★★★★★ 5
Who doesn't love a unicorn?
Size: 2T, Color: Pink/Unicorn
Cute set but runs a bit big in my opinion for a size 2T. My grandbaby is tall for her age (22 months), but the pants were really long and loose on her, granted she's not chunky, so factor that in. Overall, it's a nice set and the material is soft (especially the pants) and seems like it would keep the little ones warm.
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