Hillman 5/16 in. x 4 in. Zinc-Plated Steel Carriage Bolt, 50-Pack
SKU: 21112465776

Hillman 5/16 in. x 4 in. Zinc-Plated Steel Carriage Bolt, 50-Pack

Sale price$24.29 Regular price$26.99
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Ships within 48 hours · Estimated delivery Jul 6 - Jul 11

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Description

Hillman 5/16 in. x 4 in. Zinc-Plated Steel Carriage Bolt, 50-PackHillman 5 16 in. x 4 in. Zinc Carriage Bolts (50 Pack) Durable zinc plated steel carriage bolts for fastening wood to wood or metal. The smooth, domed head provides a clean, low profile finish while the square neck locks into material for easy one wrench installation. Key Features: Zinc Plated Protection: Resists rust and corrosion for indoor and light outdoor use Low Profile Domed Head: Clean, semi flush appearance ideal where clearance is tight

Hillman 5/16 in. x 4 in. Zinc Carriage Bolts (50-Pack)

Durable zinc-plated steel carriage bolts for fastening wood to wood or metal. The smooth, domed head provides a clean, low-profile finish while the square neck locks into material for easy one-wrench installation.


Key Features:

  • Zinc-Plated Protection: Resists rust and corrosion for indoor and light outdoor use
  • Low-Profile Domed Head: Clean, semi-flush appearance ideal where clearance is tight
  • Square Neck Locking: Grips into wood to prevent spinning—no washer needed under head
  • Versatile Fastening: Commonly used to attach a wood face to wood or metal frames
  • Pre-Drill Guidance: Drill pilot holes matching 5/16 in. diameter for best results

Specifications Table:

Specification Details
Brand Hillman
Product Type Carriage bolt
Material Steel
Finish Zinc-plated
Diameter 5/16 in.
Thread Size 5/16-18
Length 4 in.
Head Style Domed, low-profile
Neck Type Square neck
Pack Quantity 50 pieces
Intended Use Fasten a wood face to wood or metal
Installation Pre-drill hole to match bolt diameter

Frequently Asked Questions (FAQ):

Q: What materials can these carriage bolts fasten?
A: They’re designed to fasten a wood face to either wood or metal.


Q: Do I need a washer under the head?
A: No. The square neck locks into the material, eliminating the need for a flat washer under the head.


Q: Is pre-drilling required?
A: Yes, pre-drill a hole matching the 5/16 in. diameter for proper fit and to prevent splitting.


Q: Are these suitable for outdoor use?
A: The zinc plating offers moderate corrosion resistance; for harsh or long-term outdoor exposure, consider hot-dipped galvanized or stainless options.


Q: What is included in the package?
A: 50 pieces of 5/16 in.-18 x 4 in. zinc-plated steel carriage bolts.


Streamlined Hardware with a Polished, Practical Edge

A brushed zinc sheen brings a subtle sophistication to utilitarian joinery, letting functional details read as thoughtfully edited accents. The domed head sits like a small metallic button, smoothing transitions on furniture bases and garden builds. Style it exposed on a bench or planter where the quiet glint complements natural wood grain. Consider it a finishing touch that makes everyday construction feel impeccably tailored.


Upgrade your next build with durable, clean-finished fastening—add this 50-pack of Hillman zinc carriage bolts to your cart now.

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: 21112465776

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ToyaJack
Cuba, US
★★★★★ 5
Durable and cute
Color: Rose Gold
My daughter loves it. Cute durable does what it should.
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Reviewed in the United States on May 12, 2026
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Lourdes Orviz
Lake Worth, US
★★★★★ 5
Useful
Color: Yellow
Nice and useful
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Reviewed in the United States on June 3, 2026
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Miklo Shores
Bozeman, US
★★★★★ 5
Hell of a Case
So I purchased this case for my iPad 10 generation. It was easy to install and very pleasing. I wasn't planning on writing this review but here I am. One Saturday morning, I placed my iPad on the rood of my car while I put my son in the car and in his car seat. Drove off and all of a sudden while going down the highway, I got a notification that my iPad was left on the freeway. Like ahh crap. Tracked the iPad the whole way, dropped my son off at his grandma. Ipad ended up losing signal 25 minutes after the notification. Located the case, didn't survive, obviously. What I will say though it withstood the driving cars going 60+ MPH for nearly 25 minutes before the iPad was destroyed. Really enjoyed the case. Really protected it for a great amount of time before it had enough. Really recommend.
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Reviewed in the United States on March 5, 2023
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Caterina
Chelsea, US
★★★★★ 5
iPad 10th generation
Color: Pink, Color: Pink
I have the 10th gen iPad and the case Fit perfect and love the color! 😁
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Reviewed in the United States on April 2, 2026
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DiamondDee
Lake Worth, US
★★★★★ 5
If I could I’d rate this case with a 10+
Color: Pink
I’ve bought this case twice so far. It’s managed to maintain my iPad for a whole year now, never have to remove it, so you don’t need to replace it. My first one was on my iPad for about 8months before it finally managed to leak some hair or tobacco inside the screen protector which irritated me so I removed it, cleaned my iPad and purchased another case, that I HATED. So I bought this one again and throughout the other one I purchased. This case is worth it. I’ve dropped my iPad off high places, and it has smashed onto some hard surfaces, but this case has been my iPads guardian angel💖
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Reviewed in the United States on January 6, 2025

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