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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sylvia
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★★★★★ 5
Good pillow case
Color: Dark Grey, Size: 1 Pack Body(20x54)-Regular
It’s a nice soft pillow case. Fits perfectly on my body pillow
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Reviewed in the United States on May 18, 2026
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MJ
Natrona Heights, US
★★★★★ 4
Cooling and comfortable against your skin
Color: Navy Blue, Size: 1 Pack Body(20x54)-Regular
Fits perfectly and feels nice against your skin. Just wish it had a zipper on the end. That would have made it perfect.
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Reviewed in the United States on June 8, 2026
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LegoDude
Grantham, US
★★★★★ 5
I am stunned
Color: Black, Size: Queen(20x30)
I had no idea what to expect from these. But for as cheap as they were I was willing to just write it off of they weren't that good. I had already picked up a new memory foam pillow to replace my previous memory foam pillow that didn't do well with dissipating heat. This new pillow was fine by itself, but when I put my pillowcase on it, the properties that made it cooling were negated. I'd get a bit of sweat on the side of my head or my neck where it was against the pillow all night. The pillow was supposed to be a cool one, but the pillowcase was not. So I grabbed this set. Smooth, no loose threads anywhere, stitching and seams are all spot on. And it's smooth to the touch. Got it on the pillow, and as soon as I laid my head down on it, I could tell immediately that this was going to be a different result that my other one. Not nearly as warm even after laying on it for a while. No heat buildup, no bits of moisture on the skin after being on it all night. This definitely works well, especially with my cool sleep pillow. Now I can have a far more comfortable nights sleep. For the price, it's a steal. I have no idea what longevity will be, but with two of them, I'm sure I'll get more than my money's worth.
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Reviewed in the United States on August 7, 2023
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Mary Hales
Charlottesville, US
★★★★★ 5
Soft and cooling
Color: Dark Grey, Size: 2 Pack Queen(20x30)-Regular
Soft, not too thick and wash very well. Feels great against my skin and doesn’t make my hair frizzy. Color was perfect.
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Reviewed in the United States on May 13, 2026
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Issyr
Dallas, US
★★★★★ 3
Not soft, not wrinkle free
Color: Light Grey, Size: 2 Pack King(20x36)-Regular, Color: Light Grey, Size: 2 Pack King(20x36)-Regular
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