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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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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Tj
Belleville, US
★★★★★ 4
Slippery when wet!!!
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
“These moisturizing slippers are actually really comfortable and feel great on the feet. They’re soft, cozy, and do help moisturize while you wear them. I also think they’re a good value for the money. The only downside is that once your feet get moisturized, they can get slippery inside the slippers, so I wouldn’t recommend walking around too much in them. Better for relaxing and letting your feet soak up the moisture than for being up and moving around.”
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Reviewed in the United States on May 26, 2026
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J. Randle
Draper, US
★★★★★ 5
Love them
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
I wear a size 11.5 in ladies shoe and these just barely fit. Butttt after I put lotion on my feet and slipped these on and left them on for about 30 mins. It left my feet really soft! They work great as intended. Would buy again
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Reviewed in the United States on January 31, 2026
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Vonda Kioultzopoulos
West Palm Beach, US
★★★★★ 3
Effective but may be uncomfortable
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
I have eczema on my feet and use a prescription cream that I leave on overnight. I often have a problem sleeping in socks but the silicone feels cool on my feet. The only drawback I have is the opening of the socks feel very tight around my ankles making them uncomfortable on me. I wish the opening was a bit more flexible.
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Reviewed in the United States on September 20, 2025
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Tessy
Los Angeles, US
★★★★★ 1
Burned my already sensitive feet, too big
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
Feels icky, and the heat gets trapped and literally felt like my feet were being burned by these. The bottoms of these feel prickly and they are way too big. You have to sit still and cannot walk in them.
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Reviewed in the United States on April 22, 2026
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Ms. Mac
Lexington, US
★★★★★ 5
Just as good as paraffin wax
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
I might prefer these socks over paraffin wax. They are comfy and very moisturizing. I use these socks once a week to keep the heels and soles of my feet moisturized between pedicures. I rinse with warm, soapy water then hang to dry. They are hard to walk in, but there's a saying printed in the socks that's says something to the effect of "take a break, stay off your feet" lol I love that as a reminder to put my feet up and relax
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Reviewed in the United States on April 9, 2026

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