Hillman 3/8 in. x 2-1/2 in. Zinc-Plated Steel Carriage Bolt, 50-Pack
SKU: 35316531754

Hillman 3/8 in. x 2-1/2 in. Zinc-Plated Steel Carriage Bolt, 50-Pack

Sale price$19.79 Regular price$21.99
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Description

Hillman 3/8 in. x 2-1/2 in. Zinc-Plated Steel Carriage Bolt, 50-PackZinc Plated Steel Carriage Bolt, 3 8 in. x 2 1 2 in. (50 Pack) Durable Hillman carriage bolts made of zinc plated steel for rust resistant fastening in wood to wood or wood to metal projects. The round head and square neck provide a secure, semi flush finish without a washer, ideal for structural and furniture applications. Key Features: Rust Resistant Finish: Zinc plating helps resist corrosion and delivers a clean, consistent look Secure Hold:

Zinc-Plated Steel Carriage Bolt, 3/8 in. x 2-1/2 in. (50-Pack)

Durable Hillman carriage bolts made of zinc-plated steel for rust-resistant fastening in wood-to-wood or wood-to-metal projects. The round head and square neck provide a secure, semi-flush finish without a washer, ideal for structural and furniture applications.


Key Features:

  • Rust-Resistant Finish: Zinc plating helps resist corrosion and delivers a clean, consistent look
  • Secure Hold: Square neck locks into wood to prevent spinning during installation
  • Semi-Flush Appearance: Low-profile round head minimizes the need for washers
  • Versatile Use: Suitable for wood-to-wood or wood-to-metal connections
  • Bulk Value: Convenient 50-pack for projects and jobsite replenishment

Specifications Table:

Specification Details
Material Zinc-plated steel
Finish Zinc-Plated
Diameter 3/8 in
Length 2-1/2 in
Thread Type Coarse
Grade 2
Unit of Measurement SAE
Packaging Type Boxed
Number in Package 50
Head Style Round head with square neck (carriage bolt)
Weight 4.5 lb (pack)
Brand Hillman

Frequently Asked Questions (FAQ):

Q: What tools do I need to install these carriage bolts?
A: Use a drill to create a pilot hole and a wrench or socket for the nut; the square neck locks into the wood so a driver on the head is not required.


Q: Are these bolts suitable for outdoor use?
A: The zinc plating offers basic rust resistance; for harsh outdoor environments, consider hot-dipped galvanized or stainless steel options.


Q: What thread type do these bolts use?
A: They feature coarse threads compatible with standard SAE nuts and washers.


Q: Do I need washers under the head?
A: Typically no—the round head provides a semi-flush finish, though washers can be used under the nut if desired.


Q: What size are these bolts?
A: Each bolt is 3/8 inch diameter and 2-1/2 inches long.


Streamlined Strength for Timeless Woodwork

These zinc-plated carriage bolts deliver a crisp, industrial sophistication that elevates crafted wood joinery. The smooth domed head offers a refined, minimal profile while the square neck anchors with confidence. Pair them with oiled hardwoods and matte black hardware for a chic contrast that feels both modern and enduring. A small detail with big impact—essential hardware for polished, luxurious builds.


Secure your projects with dependable, rust-resistant performance—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: 35316531754

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Alice
Waukegan, US
★★★★★ 5
Nice Phone mount
Great phone mount—stable, easy to use, and gets the job done! I’ve been using this phone mount for a few weeks now, and it’s exceeded my expectations. It holds my phone securely, even on bumpy roads, and the adjustable arm makes it super easy to get the right angle. Installation was a breeze—took less than 2 minutes. The grip is strong without scratching the phone, and it feels sturdy overall. Highly recommend if you’re looking for a reliable mount!
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Reviewed in the United States on July 2, 2025
K
Verified Purchase
Kye-won Ahn
Los Angeles, US
★★★★★ 5
Perfect Phone Mount: Secure, Versatile, and Easy to Install!
This phone mount has truly exceeded my expectations! It’s incredibly easy to install and holds my phone securely in place, providing total peace of mind while driving. What really sets this mount apart is its impressive versatility—I've never seen anything quite like it. The base attaches firmly to the air vent, and the adjustable arm allows me to position my phone precisely where I want it, with the freedom to tilt it up, down, left, or right. Plus, it doesn’t interfere with air flow from the AC, which is a huge bonus. Although my wife's phone case isn't MagSafe-compatible, the included metal ring works seamlessly with it, and my MagSafe case connects just as smoothly. I couldn’t recommend this product more—it’s been an absolute game-changer for us! This is a personal purchase, and I’m thrilled with it. I’ll be sure to update if anything changes.
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Reviewed in the United States on November 12, 2024
A
Verified Purchase
Austin T.
Fort Morgan, US
★★★★★ 5
Secure and great fit
I gave this product a chance and it did not disappoint! I did not need to read any instructions for installation and was able to quickly and easily figure it out. Installation takes less than 5 minutes. Just align the mount to the top corner of your tesla screen and turn the dial to adjust the tightness. Once tightness is set, just test to see if it’s really fitted by wiggling it around to check for looseness. I like the fact that I can adjust the angles of the mount easily. My phone can be angles to be on top or side of the Tesla screen. When driving, my phone does not shake one bit. When it’s time to remove my phone, just give it a quick pull to detach and that’s it. The build quality is also very nice and I like the design of it overall. I think it’s a well thought out product. Definitely would recommend to friends and family with Teslas.
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Reviewed in the United States on February 28, 2025
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Verified Purchase
Jim Burgett
Omaha, US
★★★★★ 4
Good mount but…
This is a solid mount for the Tesla monitor but the mounting points on the corner of screen caused my screen protector to bubble up. I had to return it unfortunately.
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Reviewed in the United States on January 4, 2026
M
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Ms. Jfuller
Birmingham, US
★★★★★ 5
Tesla 😋😉 jeep phone mount.
Bought this to go in my jeep, perfectly attached to the corner of the screen of the screen, the only down side is since my screen raises and lowers over time with the vibration of the jeep it does make the screen slide down. But the magnet holds the phone very well as long as it is aligned properly to the back of the phone. I know it say tesla mount but my choice of smart stereo for my jeep is not a flush mount, it sticks out and has a cd player in the deck. As well the screen raises and lowers for access to to the cd player. So perfect for my jeep.
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Reviewed in the United States on February 24, 2026

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