Hillman 5/16 in. x 8 in. Zinc-Plated Steel Carriage Bolt, 50-Pack
SKU: 23550782772

Hillman 5/16 in. x 8 in. Zinc-Plated Steel Carriage Bolt, 50-Pack

Sale price$56.69 Regular price$62.99
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Description

Hillman 5/16 in. x 8 in. Zinc-Plated Steel Carriage Bolt, 50-Pack5 16 in. x 8 in. Zinc Plated Steel Carriage Bolt (50 Pack) Durable Hillman carriage bolts made of zinc plated steel for rust resistance and reliable fastening. The 5 16 in. diameter with coarse threads and 8 in. length suits general purpose wood to wood or wood to metal applications. Key Features: Rust Resistant Finish: Zinc plated steel helps prevent corrosion for indoor and light outdoor use Strong, General Purpose Grade: Grade 2 construction for

5/16 in. x 8 in. Zinc-Plated Steel Carriage Bolt (50-Pack)

Durable Hillman carriage bolts made of zinc-plated steel for rust resistance and reliable fastening. The 5/16 in. diameter with coarse threads and 8 in. length suits general-purpose wood-to-wood or wood-to-metal applications.


Key Features:

  • Rust-Resistant Finish: Zinc-plated steel helps prevent corrosion for indoor and light outdoor use
  • Strong, General-Purpose Grade: Grade 2 construction for everyday fastening needs
  • Secure Grip: Coarse thread profile provides strong hold in wood and metal
  • Classic Carriage Head: Round head with square neck resists spinning during installation
  • Project-Ready Quantity: Convenient 50-pack for jobs requiring consistent hardware

Specifications Table:

Specification Details
Diameter 5/16 in.
Length 8 in.
Material Steel
Finish Zinc-plated
Grade 2
Thread Type Coarse
Head Type Round carriage head with square neck
Nuts Included No
Pack Quantity 50

Frequently Asked Questions (FAQ):

Q: Are nuts included?
A: No, nuts are not included; select matching 5/16 in. coarse-thread nuts separately.


Q: What materials are these suitable for?
A: Ideal for fastening wooden faces to wood or metal frames.


Q: Can these be used outdoors?
A: The zinc plating offers rust resistance suitable for indoor and some outdoor applications; for harsh environments, consider galvanized hardware.


Q: Do I need a special tool to install?
A: The square neck under the round head helps prevent spinning, allowing installation with a standard wrench on the nut side.


Q: What thread type do these bolts have?
A: Coarse threads for stronger bite and easier installation in wood projects.


Timeless Hardware, Subtle Shine

These zinc-plated carriage bolts bring a tailored, utilitarian polish to crafted wood structures. The domed head feels refined while the square neck locks cleanly into place, preserving sleek lines. Use them to punctuate a garden bench or trellis with a quiet metallic accent that complements natural grains. A simple, elevated essential for building with intention and enduring style.


Elevate your next build with these rust-resistant carriage bolts—add the 50-pack to your cart and get projects done right.

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: 23550782772

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Tammy R Durkin
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★★★★★ 3
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Reviewed in the United States on August 1, 2025
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Reviewed in the United States on March 30, 2026
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Judith A. Rockwell
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My bag for all seasons!
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Reviewed in the United States on May 19, 2026
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Laurie Wojcik
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★★★★★ 5
Your endless search for a stylish and functional bag ends here
Color: A5 Black and White
About three years ago, I bought this really cute navy blue and white striped handbag at Target and after about a year and a half of faithful service, the cloth lining started to fall apart. Every fiber of my being wanted to buy a new handbag and replace it but since I couldn't find anything I liked, I painstakingly sewed the lining back into place and carried on using the purse until its state of disrepair was beyond anything my novice sewing skills were capable of fixing. This should indicate that I'm not the kind of person who just buys any handbag. I need it to have compartments. I need it to have a zipper that shields the purse's precious contents from the elements. I need it to be able to fit my Chromebook in the event that I'm traveling somewhere and need to bring it along. I need it to have functionality for both the typical workday and for weekend adventures. Lastly, I don't necessarily "need" it to match with most of my work clothes, but it's an added bonus when I can carry a handbag that makes me look effortlessly put together. And here it is. I can tell that this is a handbag that will last me a long time, and I won't need to get out the needle and thread to maintain it. It looks sharp, it's sturdy, it fits everything, and the color I purchased even included a matching wallet. It was a big leap for me to buy a handbag without being able to have that tactile in-store "yes this will work for me" experience so if you're the kind of person who waffles back and forth about buying a handbag sight unseen via an online retailer, worry no more. This is the one. However, a word of caution: If you're looking for something relatively small, this isn't it. This is a carry-everything-get-the-job-done-and-be-practical-and-cute-at-the-same-time type of handbag so if you're looking for something a little more portable, like for a night out, I'd recommend picking a style that includes the matching wallet so you can use it as a wristlet.
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Reviewed in the United States on June 1, 2018
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Inquiring Mind
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★★★★★ 4
Beautiful But Heavy
Color: A3 Purple and Black
I bought this bag in black and purple and it's roomy and beautiful. I love how it looks and it's a good-quality, sturdy bag. That said, it's really stiff and heavy. Its weight and rigidity remind me of a briefcase that I carried in the '80s. Also, since it doesn't have any dividers in the middle, it's easy for things to fall to the bottom and get buried. This, however, was easily remedied by buying an insert purse organizer. If you can live with all of that (I can see how some could) it's a great buy. As I mentioned before, it's a very nice, high-quality bag.
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