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 7 - Jul 12

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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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Lake Worth, US
★★★★★ 5
Veiled lady
Color: Veiled Maiden
Love this veiled lady. She fits right on with my other statues and looks so magestic
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Reviewed in the United States on April 4, 2025
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Matthew C Garza
Port Orchard, US
★★★★★ 5
Great piece!
Color: Veiled Maiden
If you're looking for a cost effective way to get this bust, this is a great option. The molding looks good and clean on all surfaces and edges. Very white in color. I really think they did a great job.
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Reviewed in the United States on February 13, 2024
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TJ Perkins
Birmingham, US
★★★★★ 5
sturdy, easy and quick to put together
Size: g:Square Table with Umbrella Hole, Color: Light Grey
Packaged with care. No damage. Easy and quick to put together. I bought 2 for the deck. Goes well with any style outdoor furniture. Sturdy, heavy, wide enough that it shouldn't get blown over by the wind. The only problem was that several of the screws on each table couldn't be installed because the holes for attaching the base to the table top didn't line up properly and would not go in. The tops on each table still held together and as long as you don't lift from the top you can't tell. Other than that, they're super awesome end tables.
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Reviewed in the United States on April 12, 2026
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John
Carnegie, US
★★★★★ 5
Great patio end or umbrella table
Size: g:Square Table with Umbrella Hole, Color: Light Brown
Perfect quality easy to assemble
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Reviewed in the United States on April 29, 2026
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Rob
West Palm Beach, US
★★★★★ 5
Easy to use
Size: g:Square Table with Umbrella Hole, Color: Black
perfect little porch table. I think it is best to just go between two chairs. I have a small fire pit on mine. Very sturdy and heavy duty but not too heavy. Pretty low price compared to others that I looked at.
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Reviewed in the United States on March 11, 2026

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