SKU: 24216355574

Hillman 5/16 in. x 1 in. Zinc-Plated Steel Carriage Bolts, 100-Pack

Sale price$20.69 Regular price$22.99
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Ships within 48 hours · Estimated delivery Sep 15 - Sep 20

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Description

Hillman 5/16 in. x 1 in. Zinc-Plated Steel Carriage Bolts, 100-Pack5 16 in. x 1 in. Zinc Plated Steel Carriage Bolts (100 Pack) Heavy duty Hillman carriage bolts secure wood to wood or wood to metal projects with a smooth, low profile, round head. Zinc plated Grade 2 steel offers dependable strength and corrosion resistance for indoor and light outdoor use. Key Features: Durable Construction: Grade 2 zinc plated steel resists rust and delivers reliable holding power Smooth, Low Profile Head: Round head provides a

5/16 in. x 1 in. Zinc-Plated Steel Carriage Bolts (100-Pack)

Heavy-duty Hillman carriage bolts secure wood-to-wood or wood-to-metal projects with a smooth, low-profile, round head. Zinc-plated Grade 2 steel offers dependable strength and corrosion resistance for indoor and light outdoor use.


Key Features:

  • Durable Construction: Grade 2 zinc-plated steel resists rust and delivers reliable holding power
  • Smooth, Low-Profile Head: Round head provides a clean, semi-flush finish without a washer
  • Anti-Spin Square Neck: Locks into wood to prevent turning during tightening
  • Coarse Thread SAE: Ensures strong grip and quick assembly in common building materials
  • Value Pack: 100 bolts per box for jobs, repairs, and shop inventory

Specifications Table:

Specification Details
Brand Hillman
Type Carriage Bolt
Diameter 5/16 inch
Length 1 inch
Material Steel
Finish Zinc Plated
Grade 2
Thread Type Coarse (SAE)
Head Style Round head with square neck
Number in Package 100 pack
Packaging Type Boxed

Frequently Asked Questions (FAQ):

Q: What size are these carriage bolts?
A: They are 5/16 inch diameter by 1 inch length with coarse SAE threads.


Q: Are nuts and washers included?
A: No, this pack includes bolts only; purchase compatible 5/16 in. nuts and washers separately if needed.


Q: Can these be used outdoors?
A: The zinc plating offers basic corrosion resistance suitable for indoor and light outdoor use; for harsh or coastal environments, consider hot-dipped galvanized or stainless steel.


Q: Do I need a tool to hold the head while tightening?
A: No; the square neck bites into the wood to prevent spinning while you tighten the nut from the threaded end.


Q: How many bolts are in the package?
A: 100 bolts per retail package.


A Clean, Flush Finish for Crafted Woodwork

The rounded head of this carriage bolt lends a polished, intentional detail to built-ins, benches, and garden structures. I love the seamless effect—no fussy washers, just a smooth dome anchoring the design. Pair it with oiled oak or painted pine for a modern, utilitarian edge that feels bespoke. It’s a small hardware choice that elevates everyday projects into refined, lasting pieces.


Secure your next build with dependable, clean-finished fasteners—add this 100-pack of Hillman 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: 24216355574

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4.6 ★★★★★
Based on 29 reviews
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Rumor
Charlottesville, US
★★★★★ 4
Good quality, but a few issues with the hidden mounts and levelness.
Size: 35x7 2Pcs, Color: Black, Size: 35x7 2Pcs, Color: Black
These are quite nice and also sturdy. Only complaint I have is that I bought a couple of these, and on one of them, only one of them, it was difficult to get the hidden mounts to go into the holes. I think it was probably a manufacturing defect thing. Also, on that particular one, it wasnt as level as the other. Not a show stopper, but if you need a perfectly level type of mounting situation, I would be careful here.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 14, 2025
N
Verified Purchase
NatKenneally
Charlottesville, US
★★★★★ 5
Great value/easy to install.
Size: 24x6 2Pcs, Color: Black, Size: 24x6 2Pcs, Color: Black
Great product and great value. Easy to install and adds a nice touch to a bathroom.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 21, 2026
B
Verified Purchase
Betty D
Chelsea, US
★★★★★ 5
Easy hanging
Size: 31x7 2Pcs, Color: Black
Great size and easy to hang. Have purchased many for my home.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
D
Verified Purchase
David S.
Boise, US
★★★★★ 5
Look great!
Size: 40x7 2Pcs, Color: Black
Love the way these turned out in my office! I connected 3 shelves in a row across the wall to make one long shelf and it looks great!
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Reviewed in the United States on April 16, 2026
C
Verified Purchase
Chris snyder
Grantham, US
★★★★★ 3
Nice looking. Not very sturdy. Easy to install.
Size: 40x7 2Pcs, Color: White, Size: 40x7 2Pcs, Color: White
Update: The shelf slopes at about a 45° angle when you put anything more than about a pound on the outside edge of it. Perfectly fine up against the wall. Just seems like the braces inside aren't long enough to really give the stability needed. Bracket is nice and tight against the wall. Had to add braces underneath to hold a small plant, a photo and a small container. Wa sloping more and more each week The shelves look great and we're pretty easy to install. They have a single bracket that is very easy to mount to the wall and get nice and level.. The downside is that the bracket isn't long enough to go between studs. This seems like a pretty simple oversight. I mean why wouldn't you make it long enough to go stud to stud? Secondly and maybe more fatally the bars that go inside the shelf to support them coming out from the wall are significantly shorter than the depth of the shelf. Unfortunately this means the shelf is only supported the first few inches coming out from the wall so there is the potential for a slight lean forward.. The anchors they send are trash. Cheap soft plastic that just tears and bends with a screwdriver. I would suggest spending $2 and grabbing your own anchors from Ace or home Depot. The shelves are essentially made of a high grade cardboard kind of wood. They are not going to support much weight or last for years and years however there incredibly affordable and look nice and easy to install. Long as your expectations are right you'll be happy.
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Reviewed in the United States on October 23, 2023

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