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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Savannah
New York, US
★★★★★ 5
Good price & variety
I ordered this just before Christmas to give away as gifts and gave one to my bf as well. All the scents were strong and I enjoyed them. My boyfriend and I used the one that I gave him (patchouli scent with the scrub) to test it out. It was very exfoliating. It didn’t bother us, maybe we got a good batch, or just have skin not as gentle as others. It felt similar to a sugar scrub. For the price, you get a good amount and variety of this soap. I might get another box just for myself. If you check the ingredients they are actually very simple & natural, not full of parabens or random chemicals that you can’t even pronounce.
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Reviewed in the United States on February 13, 2026
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KCdonna
Battle Creek, US
★★★★★ 5
Nice soaps!
After visiting Colorado and trying real goats milk soap we have yet to find anything we liked as much. On a whim I purchased this pack. My husband and I both like them very much. As much as we like to shop local it’s been hard to find what we wanted. We will definitely purchase again. We like the scents, the natural exfoliators and the softness it leaves our skin.
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Reviewed in the United States on February 15, 2026
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GrydOrDie
Massapequa, US
★★★★★ 5
Very good bars of soap collection.
My wife doesn’t like the liquid soap because a lot of them say detergent and she says she’s not a dish or a piece of clothing. So this set looks really appealing with a variety of fragrances and scents. It will last you a while. The size of each soap bar is the average size of soap bar. It lathers very well, while being soft on the skin and ganking dirt and odors like it does it’s basically a steal.
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Reviewed in the United States on January 5, 2026
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Amy Oyer
Boise, US
★★★★★ 5
Good for exfoliating
Color: Beige (4 Packs)
These are great for saving and using soap slivers. I can't stand to throw out something useful but once they get too small they're hard to hold onto. I had a mesh bag but it started to come apart and I thought these would hold up better. These bags are thick and sturdy. They're a little stiff at first but softened up quickly. They're great for exfoliating. The only change I would like to see is the wood closing bead changed to a locking clip as it slides open all the time.
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Reviewed in the United States on March 17, 2026
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EliteTech
Bozeman, US
★★★★★ 5
Great product!
Color: Beige (8 Packs)
I buy handmade soap from a local soap maker, but I’ve always had trouble with it lasting—if I leave it in a soap dish, it never dries properly and melts away too quickly. I used to use loofah socks, but they were frustrating: the knots wouldn’t stay tied and they tore apart easily. I decided to give these a try, and I’m impressed! I had a couple of concerns going in. First, I wasn’t sure they’d fit the larger-sized handmade bars I use—but they do! It’s a snug fit at first, which can make lathering a bit tricky, but after one or two uses it softens up and starts to lather beautifully—honestly, better than the mesh loofahs I’ve used. The design is thoughtful: the knot stays secure, and the bead keeps the soap from slipping out—both huge improvements over other products I’ve tried. The biggest surprise? The exfoliation. It’s effective without being harsh, even on sensitive areas. My skin felt softer than it ever did with sugar or salt scrubs. That’s an unexpected bonus I didn’t even realize I needed! Highly recommend—especially if you’re using handmade or natural soaps and want to make them last longer.
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Reviewed in the United States on July 12, 2025

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