SKU: 37905600797

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

Sale price$44.09 Regular price$48.99
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Description

Hillman 3/8 in. x 3-1/2 in. Hot-Dipped Galvanized Steel Carriage Bolts, 50-PackHillman Galvanized 3 8" x 3 1 2" Carriage Bolts (50 Pack) Durable hot dipped galvanized steel carriage bolts for fastening wood to wood or metal with a clean, low profile finish. The square shoulder locks into material for secure, washer free installation and coarse threads ensure reliable grip in outdoor or high moisture environments. Key Features: Rust Resistant Protection: Hot dipped galvanized finish delivers superior corrosion resistance for

Hillman Galvanized 3/8" x 3-1/2" Carriage Bolts (50-Pack)

Durable hot-dipped galvanized steel carriage bolts for fastening wood to wood or metal with a clean, low-profile finish. The square shoulder locks into material for secure, washer-free installation and coarse threads ensure reliable grip in outdoor or high-moisture environments.


Key Features:

  • Rust-Resistant Protection: Hot-dipped galvanized finish delivers superior corrosion resistance for exterior use
  • Secure Hold: Square shoulder locks into wood for anti-rotation and eliminates the need for a flat washer
  • Clean, Low-Profile Finish: Smooth domed head sits semi-flush where space is tight
  • Reliable Threading: Coarse SAE threads provide strong engagement in wood and metal
  • Sized for Versatility: 3/8 in. diameter x 3-1/2 in. length, 50 bolts per boxed pack

Specifications Table:

Specification Details
Brand Hillman
Finish Hot Dipped Galvanized
Material Steel
Diameter 3/8 inch
Length 3-1/2 inch
Thread Type Coarse
Unit of Measurement SAE
Grade 2
Head Style Carriage, domed head
Number in Package 50
Packaging Type Boxed

Frequently Asked Questions (FAQ):

Q: What materials can these carriage bolts be used with?
A: They are designed to fasten a wooden face to either a wood or metal frame.


Q: Do I need a washer under the head?
A: No— the square shoulder bites into the material and prevents rotation, eliminating the need for a flat washer under the head.


Q: Is pre-drilling required?
A: Yes, drill a hole matching the 3/8 in. diameter for proper fit and installation.


Q: Are these suitable for outdoor applications?
A: Yes, the hot-dipped galvanized finish offers excellent rust resistance for exterior and high-moisture environments.


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


Crisp, Galvanized Hardware for Clean, Cohesive Builds

These carriage bolts bring a refined, utilitarian elegance to outdoor structures and rustic interiors alike. The domed head offers a subtle, polished detail while the galvanized finish harmonizes with weathered woods and industrial metals. Use them to unify deck railings, garden gates, or exposed timber joinery for a tailored, cohesive look. A must-have detail for achieving durable, design-forward craftsmanship.


Upgrade your project with galvanized reliability—add this 50-pack of Hillman carriage bolts to your cart today.

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: 37905600797

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Kendra
Waukegan, US
★★★★★ 2
Flimsy rope
Size: Large
This was definitely not sturdy enough for a large dog "up to 80 lbs" as stated. My 7 month old Shepherd puppy shredded the rope part in about 5 minutes. The chew stick is a hit but very small. Flimsy for the cost!
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Reviewed in the United States on September 17, 2025
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DJ
Waukegan, US
★★★★★ 3
Fast Chew
Size: Medium
Didn’t last as long as I expected. My Frenchie chewed through it in record time. I will purchase another one to see if it’s the same as the one I received.
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Reviewed in the United States on September 28, 2025
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Kidzmomma
Birmingham, US
★★★★★ 5
Great for chewers
Size: Large
I have bought these for the dogs (GSD/Husky/Golden) 4 mon-7yrs. All 4 dogs enjoy them and keeps the 2 puppies from chewing things they should not. Definitely worth the money for how long they have lasted as well. Have already ordered more.
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Reviewed in the United States on October 4, 2025
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ginger
Lowell, US
★★★★★ 1
Not as safe as it seems
Size: Xtra Large
I did like the look and sound of the all natural wood and coconut rope. However after 15 minutes of giving it to my dog there were rope fibers everywhere. Even though my research said coconut rope was ok for dogs in small amounts; my dog started throwing up. My cat also managed to get ahold of some of the strings and ended up choking. Even when I took the rope off and gave just the coffee wood stick; after just a few minutes of play my dog began coughing. This is just the experience that I had. All dogs are different. Just please don’t let your best friend play with it unsupervised
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Reviewed in the United States on February 3, 2025
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Amazon Customer
Fort Morgan, US
★★★★★ 5
Do research
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My pups love to shred things. This was a good toy for them to satisfy their need to shred things. My dogs are on the smaller side and I went with a small. I do encourage people to do their research and not leave this toy unsupervised. If your dog eats toys they shred this might not be a good toy for you. Coconut fiber can become impacted if too much is consumed. Unlike other reviewers I didn’t notice to much of a mess outside any other toy a dog might shred.
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Reviewed in the United States on February 28, 2024

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