Hillman 5/16 in x 3/4 in Zinc-Plated Steel Carriage Bolt, 100-Pack
SKU: 71183590878

Hillman 5/16 in x 3/4 in Zinc-Plated Steel Carriage Bolt, 100-Pack

Sale price$31.32 Regular price$34.80
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Description

Hillman 5/16 in x 3/4 in Zinc-Plated Steel Carriage Bolt, 100-Pack5 16 in x 3 4 in Zinc Plated Steel Carriage Bolts (100 Pack) Durable zinc plated steel carriage bolts for wood to wood or wood to metal fastening. The dome head and square neck prevent spinning during installation, delivering a clean, secure finish for interior projects. Key Features: Zinc Plated Protection: Rust resistant finish provides a clean, consistent look for indoor applications Secure Anti Spin Design: Square neck beneath the dome head locks

5/16 in x 3/4 in Zinc-Plated Steel Carriage Bolts (100-Pack)

Durable zinc-plated steel carriage bolts for wood-to-wood or wood-to-metal fastening. The dome head and square neck prevent spinning during installation, delivering a clean, secure finish for interior projects.


Key Features:

  • Zinc-Plated Protection: Rust-resistant finish provides a clean, consistent look for indoor applications
  • Secure Anti-Spin Design: Square neck beneath the dome head locks into wood as the nut tightens
  • Reliable Wood Fastening: Ideal for decking, fencing, furniture and play equipment where removal from one side is needed
  • Easy Install: Fits pre-drilled holes; pair with hex nuts and washers for a strong hold
  • Standard Coarse Threads: 5/16-in diameter, 3/4-in length, 18 TPI for common hardware compatibility

Specifications Table:

Specification Details
Material Steel
Finish Zinc-plated
Manufacturer Color/Finish Silver
Package Quantity 100
Use Location Interior
Unit of Measure Count
Measure Type Standard (SAE)
Thread Type Coarse
Bolt Diameter 5/16-in
Length Measurement 3/4-in
Bolt Thread Pitch 18
Warranty None
ACQ Approved No
Prop 65 Warning No

Frequently Asked Questions (FAQ):

Q: What materials can these carriage bolts fasten?
A: They are designed to fasten a wooden face to wood or metal substrates.


Q: Are these suitable for outdoor use?
A: The zinc plating offers rust resistance but is primarily intended for interior use; it may not be ideal for all exterior projects.


Q: How do I install a carriage bolt?
A: Drill a pilot hole, insert the bolt through the hole, and secure with a hex nut and washer. The square neck locks into the wood to prevent spinning.


Q: What thread type and pitch do these bolts have?
A: Coarse thread with an 18 TPI pitch.


Q: How many bolts are included?
A: Package contains 100 bolts.


A Sleek, Secure Fastener for Clean-lined Projects

The smooth, dome head brings a refined, unobtrusive finish to cabinetry, benches, and custom built-ins. I love the way the square neck nests into wood, keeping the surface pristine while ensuring a steadfast hold. Use them to detail indoor furniture or accent structural elements where hardware should disappear. It’s a subtle yet essential touch for effortlessly polished, luxury interiors.


Choose Hillman’s zinc-plated carriage bolts for a clean, secure finish on your next interior build.

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: 71183590878

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Nibi
Cuba, US
★★★★★ 5
Good shelf
Color: Black, Size: 24 inches
Lightweight shelves. Easy to assemble
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Reviewed in the United States on May 12, 2026
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Keisha
Chelsea, US
★★★★★ 4
Sturdy
Color: White, Size: 15 inches, Color: White, Size: 15 inches
Love the shelves. Nice touch to my bathroom. Easy enough to install. They're not holding anything too heavy so can't speak too much on that but they do have a nice width.
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Reviewed in the United States on March 30, 2026
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Kaitlynn
Pawtucket, US
★★★★★ 5
Good for light stuff
Color: Black, Size: 15 inches, Color: Black, Size: 15 inches
Good product. Very light though and if it’s in dry wall won’t hold something really heavy. I don’t think it would hold 20 pounds just light. I put over my washer and dryer and put one right on top that way I can put heavy stuff on that side without it weighing down and being ripped out of the wall. I won’t be putting heavy stuff on the right side I used 4 pieces and the wall is about 60-62 inches long
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Reviewed in the United States on December 5, 2025
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Reviewer
Grantham, US
★★★★★ 5
Perfect sized floating shelves
Color: Black, Size: 24 inches, Color: Black, Size: 24 inches
These are great and the perfect width. I had my contractor install them because my tile had to have a hole drilled into it. I love that it looks seemless and flat to the tile. New bathroom renovation. I am very pleased. Holds a few towels also candles and a little plant with extra space. Perfect for a minimal look or if you have a small bathroom. Color was spot on.
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Reviewed in the United States on March 30, 2026
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R. Fleming
Lake Worth, US
★★★★★ 3
Not What I Expected
Color: White, Size: 32 inches
This set of floating shelves was a disappointment. They’re advertised as holding 20 pounds, but mine began to bend with barely 10 pounds on them. All the screws and anchors were installed tightly and correctly, yet the metal brackets still warped under minimal weight. The shelves look fine on the wall, but I’m leaving them up only because I don’t want to patch a dozen holes—not because they’re sturdy. Definitely not the quality or strength I expected.
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Reviewed in the United States on April 13, 2026

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