SKU: 26543458566

Hillman 5/16 in. x 3 in. Hot-Dipped Galvanized Steel Carriage Bolts, 100-Pack

Sale price$52.19 Regular price$57.99
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Description

Hillman 5/16 in. x 3 in. Hot-Dipped Galvanized Steel Carriage Bolts, 100-Pack5 16 in. x 3 in. Galvanized Carriage Bolts (100 Pack) Durable Hillman carriage bolts made from steel with a hot dipped galvanized finish for superior rust resistance. Ideal for fastening wood to wood or wood to metal, the round head and square neck provide a clean, semi flush finish and self locking grip. Key Features: Corrosion Protection: Hot dipped galvanized finish resists rust for outdoor and coastal applications Secure Hold: Square neck locks

5/16 in. x 3 in. Galvanized Carriage Bolts (100-Pack)

Durable Hillman carriage bolts made from steel with a hot-dipped galvanized finish for superior rust resistance. Ideal for fastening wood to wood or wood to metal, the round head and square neck provide a clean, semi-flush finish and self-locking grip.


Key Features:

  • Corrosion Protection: Hot-dipped galvanized finish resists rust for outdoor and coastal applications
  • Secure Hold: Square neck locks into wood to prevent spinning during tightening
  • Clean Finish: Low-profile round head eliminates need for a washer in many installs
  • Reliable Strength: Grade 2 steel with coarse threads for dependable fastening
  • Bulk Value: 100-count boxed pack for jobsite and shop efficiency

Specifications Table:

Specification Details
Diameter 5/16 inch
Length 3 inch
Material Steel
Finish Hot Dipped Galvanized
Grade 2
Thread Type Coarse
Unit of Measurement SAE
Number in Package 100 pack
Packaging Type Boxed
Head Style Round head carriage bolt
Neck Style Square neck, self-locking
Category Carriage Bolts

Frequently Asked Questions (FAQ):

Q: What size are these carriage bolts?
A: They are 5/16 inch diameter and 3 inches in length with coarse threads.


Q: What materials are these suitable for?
A: They’re designed to fasten a wooden face to either a wood or metal frame.


Q: Are they rust resistant for outdoor use?
A: Yes, the hot-dipped galvanized finish offers strong corrosion protection for exterior applications.


Q: Do I need a washer under the head?
A: Typically no—the round head is designed to provide a semi-flush finish without a washer.


Q: How many bolts are in the package?
A: 100 bolts come in a boxed retail pack.


Understated Hardware, Elevated Finish

The soft dome head and muted galvanized sheen bring a quiet sophistication to exposed hardware moments. I love the square-neck detail—it nests into wood for a tailored, seamless look. Use these to secure bench slats or deck accents where the hardware becomes part of the design story. A dependable, polished touch for luxe, lived-in spaces.


Choose Hillman galvanized carriage bolts for a clean, secure install that stands up to the elements—order your 100-pack 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: 26543458566

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Courtney A.
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★★★★★ 5
Decent quality for the price
Color: Grey
Decent quality for the price. Other privacy screens were extremely out of my budget, but this looks and works just fine- I just needed something simple to place behind my couch to hide some clutter. It took me about a half hour to assemble, but it was easy enough. It might be due to my carpeting, but I don't trust that the screen would be stable enough to stand freely without falling. Thankfully my plan all along was to wedge the screen between the couch and a box of clutter anyway, so for me it works as l'd planned!
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Reviewed in the United States on April 10, 2026
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Madi R.
Whiting, US
★★★★★ 4
Overpriced but effective.
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Reviewed in the United States on April 3, 2026
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Sunny in AZ
Birmingham, US
★★★★★ 5
Great price for a great product
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Excellent quality and great price to boot. Easy to assemble and folds up easily to be stored. We are using it as a privacy screen when we have company that needs to sleep on the couch and also to block off a hallway leading to a guest suite. It looks great and is as described in the ad
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Carissa L
Port Orchard, US
★★★★★ 1
No.
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This was horribly made and a nightmare to put together. You have to basically bend the bars to get the coverings attached. The sizes don't match. The stickers that label the parts are impossible to remove and if you do get them off theres a lot of residue left behind. On top of that once it was put together I noticed theres a big dirty foot print on it which is definitely not mine.
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★★★★★ 3
You have to add weight to it
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It does its job and it was easy to put together but it's a little on the flimsy side and it will easily be knocked down. So you're going to have to figure out a way to make the legs heavier? I used cinder blocks, single cinder blocks and it works just fine. Just know that it will knock over super easy
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