Hillman 3/8 in. x 4-1/2 in. Hot Dipped Galvanized Steel Carriage Bolt, 50-Pack
SKU: 35622772418

Hillman 3/8 in. x 4-1/2 in. Hot Dipped Galvanized Steel Carriage Bolt, 50-Pack

Sale price$52.19 Regular price$57.99
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Description

Hillman 3/8 in. x 4-1/2 in. Hot Dipped Galvanized Steel Carriage Bolt, 50-Pack3 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

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:

Specification Details
Brand Hillman
Type Carriage Bolt
Diameter 3/8 inch
Length 4-1/2 inch
Material Steel
Finish Hot Dipped Galvanized
Thread Type Coarse
Grade 2
Unit of Measurement SAE
Head Style Round/Dome head with square neck
Number in Package 50
Packaging Type Boxed
Package Dimensions (L x W x H) 6.8 in x 4.5 in x 3.3 in
Package Weight 7.3 lb

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.

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: 35622772418

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Megan Cusack
Dallas, US
★★★★★ 5
Love these floating shelves!
Color: Oak, Number Of Shelves: 2, Size: 36"W x 6.5"D
These shelves are perfect for my kitchen! They were easy to install. All the hardware was included. They are durable and sturdy and gave my kitchen wall an instant face lift!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
A
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A. Tucker
Port Orchard, US
★★★★★ 3
Holes in brackets are not spaced for studs!
Color: White, Number Of Shelves: 2, Size: 67"W x 6.5"D
So the quality of this not great, but good enough and they look nice enough on the wall. However, the bracket holes are not spaced at 16" intervals. WTF? I'm not sure who designed this thing. The molly plugs that came with it look OK, but to play it safe I used a cobalt steel drill bit and made my own holes in the bracket. Easy enough with some wd40. My other pick with this is that the screws to anchor the shelf to the bracket are black and and very obvious... they should have supplied some kind of cap.
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Reviewed in the United States on January 31, 2026
J
Verified Purchase
Judy
Omaha, US
★★★★★ 5
Great purchase
Color: Ink Black, Size: 2 pack
The set is sturdy, easy to assemble and are visually pleasing. Great value for the money.
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Reviewed in the United States on May 12, 2026
B
Verified Purchase
bradley e.
West Palm Beach, US
★★★★★ 5
Sturdy and Nice
Color: Ink Black, Size: 2 pack
Very Sturdy and good looking
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Reviewed in the United States on March 28, 2026
K
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KAREN MARIE
Alexandria, US
★★★★★ 5
Great value!
Color: Ink Black, Size: 2 pack
Really sturdy and a great value for the money. Almost idiot proof when putting it together, too. The drawing is very specific, and everything is really well marked and numbered. This isn’t fine furniture, but it really is a great value for the money!
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Reviewed in the United States on January 19, 2026

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