Hillman 5/16 in. x 3-1/2 in. Hot Dipped Galvanized Steel Carriage Bolts, 50-Pack
SKU: 48397738232

Hillman 5/16 in. x 3-1/2 in. Hot Dipped Galvanized Steel Carriage Bolts, 50-Pack

Sale price$33.29 Regular price$36.99
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Description

Hillman 5/16 in. x 3-1/2 in. Hot Dipped Galvanized Steel Carriage Bolts, 50-Pack5 16 in. x 3 1 2 in. Galvanized Carriage Bolts (50 Pack) These Hillman carriage bolts feature a hot dipped galvanized steel finish for superior rust resistance in outdoor and marine applications. The round head and square neck provide secure, flush fastening in wood to wood or wood to metal projects. Pack includes 50 coarse thread bolts for reliable, long lasting hardware installs. Key Features: Corrosion Protection: Hot dipped galvanized steel

5/16 in. x 3-1/2 in. Galvanized Carriage Bolts (50-Pack)

These Hillman carriage bolts feature a hot-dipped galvanized steel finish for superior rust resistance in outdoor and marine applications. The round head and square neck provide secure, flush fastening in wood-to-wood or wood-to-metal projects. Pack includes 50 coarse-thread bolts for reliable, long-lasting hardware installs.


Key Features:

  • Corrosion Protection: Hot-dipped galvanized steel resists rust for outdoor longevity
  • Secure Hold: Square neck locks into wood to prevent spinning during tightening
  • Clean Finish: Low-profile round head eliminates the need for a washer and sits semi-flush
  • Reliable Strength: Grade 2 steel with coarse SAE threads for general construction use
  • Bulk Convenience: 50-piece boxed pack for multi-project efficiency

Specifications Table:

Specification Details
Size 5/16 inch diameter x 3-1/2 inch length
Finish Hot Dipped Galvanized
Material Steel
Grade 2
Thread Type Coarse
Unit of Measurement SAE
Head Style Round head with square neck
Number in Package 50 pack
Packaging Type Boxed
Category Carriage Bolts

Frequently Asked Questions (FAQ):

Q: What materials are these carriage bolts made from?
A: Steel with a hot-dipped galvanized finish for enhanced corrosion resistance.


Q: Are these bolts suitable for outdoor use?
A: Yes. The galvanized coating is designed to prevent rust, making them ideal for exterior applications.


Q: What thread type do they use?
A: Coarse SAE threads.


Q: Do I need a washer under the head?
A: Typically no—the round head design provides a semi-flush finish, reducing the need for a washer.


Q: How many bolts come in the package?
A: 50 bolts per boxed pack.


Understated Hardware, Elevated Craft

The rounded carriage head offers a clean, tailored detail that feels both intentional and timeless. Its galvanized sheen brings a subtle industrial edge while promising performance in the elements. Use these bolts to anchor outdoor benches or garden gates, letting the minimal profile complement warm woods and crisp lines. A quiet essential that ensures durability without compromising style—true luxury in the details.


Secure your projects with long-lasting, rust-resistant fastening—add this 50-pack of Hillman galvanized 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: 48397738232

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Caffeinated Hermit
Houston, US
★★★★★ 5
Great play sneaker for outside
Size: 1 Little Kid, Color: Fuchsia
These sneakers fit my daughter’s feet perfectly and she loves the color. I trust the Saucony brand as I’ve owned several pairs. They are well made and this pair is an excellent option for play sneakers. My kids are outside a lot and I need a sneaker that can handle running, climbing and occasionally getting wet. There is generous breathable mesh and the shoes dry quickly. My daughter has slightly wider feet and these fit comfortably. I also appreciate that they are Velcro so can be put on or taken off quickly because we all know kids are impatient when it comes to playtime.
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Reviewed in the United States on May 19, 2026
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EmilySue
Lexington, US
★★★★★ 5
Great everyday sneaker
Size: 1 Little Kid, Color: Fuchsia
I bought these for my kid and honestly didn’t expect to like them as much as I do, but they’ve been great so far. They’re lightweight, easy to get on, look cute, fit well, and actually seem comfortable enough that there’s been zero complaining (which is saying a lot). The grip on the bottom is solid, and they’ve held up really well with everyday wear, running around, playground, all of it. I also like that they’re breathable, so no sweaty feet at the end of the day. They’re not the most “fancy” sneaker out there, but for the price, the quality feels really fair. If anything, I wish they came in even more color options because we’d probably buy another pair. Overall, really good everyday shoe. If you just need something reliable, comfortable, and kid-proof, these definitely do the job.
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Reviewed in the United States on April 21, 2026
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Samara Dawson
Lowell, US
★★★★★ 5
You've Found Your Daughter's Match! Superior Sneakers for Girls!
Size: 1 Little Kid, Color: Fuchsia, Size: 1 Little Kid, Color: Fuchsia
Super-cute, stylish sneakers meet cushiony comfort at a very reasonable price. These sneakers have it all! The bed and sole of these sneakers provide significant shock-absorption making them ideal for serious athletics or a long day out at the theme park. Our daughter went from a Keds-type sneaker to these and she was beaming 😁! In addition to their comfort and ppearance is the fact that they fasten and unfasten with ease. Any child can put them on and take them off. The laces stretch and the Velcro is highly adjustable. Everything has been constructed with integrity. They are, also, washable so you can continue to maintain their crisp, vibrant colors and keep them looking new. They fit true-to-size and can accodimate somewhat wide feet as well. There are only positive things to say about these 5+ stars!
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Reviewed in the United States on April 11, 2026
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RJS
Pawtucket, US
★★★★★ 5
Nice, Tough & Comfortable!
Size: 6.5 Wide Big Kid, Color: Black
Bought as an everyday school shoe for my 10 year old son. He likes them a lot and is holding up great through rough boy play, and they still look good after a couple months now.
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Reviewed in the United States on January 20, 2026
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Peri Nikolas
Birmingham, US
★★★★★ 5
Great
Size: 4.5 Big Kid, Color: Pink/Purple
perfect
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Reviewed in the United States on May 12, 2026

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