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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J. Barz
West Palm Beach, US
★★★★★ 5
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Size: 8.5, Color: Nude/Nubuck
These were a gift. I understand they are "slightly" wide at the toes but fit otherwise. The color & heel height were exactly as desired. She felt the traction was also very good. I look forward to seeing her wear them to her son's wedding!
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Reviewed in the United States on May 30, 2026
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S. F. Rushing
Port Orchard, US
★★★★★ 5
Pretty in pink
Size: 7, Color: Pink, Size: 7, Color: Pink
Great shoe. Fits perfectly. I hope they're comfortable when I wear them.
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Reviewed in the United States on May 23, 2026
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Cassie McLain
Bozeman, US
★★★★★ 5
Wedding Guest Shoe
Size: 6.5, Color: Silver/Glitter
True to size. Very true 6.5 in most all of my shoes. I thought the fit was great but after wearing for a little bit they are horrible. The glitter goes down a little too far on the back and rubs the heel. The sides of your toes will hurt after a little bit of wearing them. Super cute shoes and I toughed it out because they looked great but definitely not the most comfortable shoes.
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Reviewed in the United States on May 13, 2026
G
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Gloria Chirila
Whiting, US
★★★★★ 4
These shoes are adorable but they run large
Size: 11, Color: Champagne
Dream Pairs Low Chunk Heel Size 11 Color These shoes are absolutely gorgeous. The beautiful champagne color shines so exquisitely in the light. They are very shiny and somewhat sparkly. They are definitely eye catching. Style These shoes are great looking, rather sharp. I appreciate the chunky heel design which goes with many outfits from dresses, pants, and jumpers. Size I usually wear a size 11 shoe, sometimes a 10.5 depending on how they run, but these run large in length. I could have easily bought a size 10 for the length of the shoe. My left foot is smaller than the right foot so usually the right foot fits more snug. I definitely still had room in the back for the right foot, but of course, even more room in the back for the left foot. In terms of the width, the toe strap very well accommodates wider toe boxes, as the straps fit properly right out of the box, but the arch of the shoe is a little narrow. Nothing too noticeable but the fit of the shoe is a little odd. Versatility I find that these shoes can be worn with many different styles and outfits, and can go with dressy or casual clothing. The variety of matching outfits is not limited. Comfort These shoes are very comfortable to wear and walk in. Overall, I recommend these shoes
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Reviewed in the United States on July 14, 2025
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KadeeH
Dallas, US
★★★★★ 5
Perfect heel!
Size: 11, Color: Gold/Glitter
Love these heels! I bought the gold and wasn’t expecting them to be most glittery. They are beautiful and comfortable! The heel is chunky enough that these walk like a wedge but don’t look like the heels from the lay 90’s. Love them and will be buying in different colors n
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