Hillman 5/16 in. x 4 in. Hot-Dipped Galvanized Steel Carriage Bolt, 50-Pack
SKU: 39278307079

Hillman 5/16 in. x 4 in. Hot-Dipped Galvanized Steel Carriage Bolt, 50-Pack

Sale price$34.19 Regular price$37.99
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Description

Hillman 5/16 in. x 4 in. Hot-Dipped Galvanized Steel Carriage Bolt, 50-Pack5 16 in. x 4 in. Hot Dipped Galvanized Carriage Bolts (50 Pack) Durable Hillman carriage bolts designed for fastening wood to wood or wood to metal with a smooth, dome head finish. Hot dipped galvanized steel resists rust for long lasting outdoor and structural applications. Key Features: Rust Resistant Protection: Hot dipped galvanized steel stands up to moisture and outdoor exposure Secure Hold: Square neck locks into wood to prevent spinning during

5/16 in. x 4 in. Hot-Dipped Galvanized Carriage Bolts (50-Pack)

Durable Hillman carriage bolts designed for fastening wood-to-wood or wood-to-metal with a smooth, dome head finish. Hot-dipped galvanized steel resists rust for long-lasting outdoor and structural applications.


Key Features:

  • Rust-Resistant Protection: Hot-dipped galvanized steel stands up to moisture and outdoor exposure
  • Secure Hold: Square neck locks into wood to prevent spinning during tightening
  • Clean Finish: Round, low-profile head provides a semi-flush appearance without a washer
  • Strong and Reliable: Grade 2 steel with coarse threads for general construction fastening
  • Bulk Value: 50 bolts per box for projects and jobsite needs

Specifications Table:

Specification Details
Brand Hillman
Diameter 5/16 inch
Length 4 inch
Material Steel
Finish Hot Dipped Galvanized
Grade 2
Thread Type Coarse
Unit of Measurement SAE
Head Style Round carriage head with square neck
Number in Package 50 pack
Packaging Type Boxed

Frequently Asked Questions (FAQ):

Q: What size are these carriage bolts?
A: They are 5/16 in. diameter by 4 in. length with coarse threads.


Q: What material and finish are used?
A: They are made of Grade 2 steel with a hot-dipped galvanized finish for corrosion resistance.


Q: Are nuts and washers included?
A: No, this listing is for bolts only; purchase matching 5/16 in. nuts and washers separately if needed.


Q: Where are these bolts typically used?
A: Ideal for fastening wood to wood or wood to metal in decks, fences, and general construction.


Q: How many come in the package?
A: 50 bolts per retail package.


A Clean, Crafted Finish for Outdoor Builds

The rounded carriage head delivers a neat, unobtrusive accent that lets the wood grain take center stage. I love the tactile, chalky sheen of hot-dipped galvanization—it feels honest and architectural. Use them in rhythmic rows along a fence or garden gate for subtle texture and cohesion. It’s the kind of quiet hardware that elevates everyday structures into refined, lasting design.


Choose these galvanized carriage bolts for a clean look and rust-proof strength on your next outdoor 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: 39278307079

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Beth
Port Orchard, US
★★★★★ 5
Works & Looks Great!
This item comes with two options for sticking to the sink, suction cups & an adhesive thing. I decided to try the suction cups first, that way I can remove them to clean, plus I wanted to test out the position of where I put it on the sink. They work great! I haven’t had to re-stick not once. Great staying power! And it looks really good! Also, the seller sent a follow-up message just to check in & offer answers if any questions arose. That meant the world to me, like it’s not every day a seller cares what you think once money changes hands. 10/10 would recommend!
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Reviewed in the United States on May 26, 2024
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Efren
Boise, US
★★★★★ 5
Small size, but holds up to two sponges
Needed something to hold my sponges in the sink and this did the job
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Reviewed in the United States on May 13, 2026
L
Verified Purchase
"laurasinda"
Dallas, US
★★★★★ 3
need a smooth sink surface for this to work
Color: Silver
Suction cups didn't stick to my sink and kept falling; to be fair, surface of my sink is textured.
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Reviewed in the United States on June 12, 2025
M
Verified Purchase
Mister E.
Grantham, US
★★★★★ 5
Three months later, it's a keeper
Color: Silver
I hate it when reviews are left one day after the product arrives. At that point, there's no way of knowing if the item is going to last. When my last sink caddy went bad (the suction cups rotted out and the wires had started to rust), I ordered this as a replacement. Inexpensive, functional, worth a try. There were two things that impressed me when this arrived. The suction cups weren't permanently mounted, so if they fell apart, the caddy was still worthwhile. Secondly, the company offered free replacement suction cups if the time came I needed them. That struck me as above-and-beyond; I had no idea this was part of the package. I'm happy with this. It looks good, I detach the sink caddy regularly when I want to move it out of the way, and it pops right back into place. For the money, I don't think you can beat it.
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Reviewed in the United States on March 7, 2021
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Cgreen
Chelsea, US
★★★★★ 5
Best organizer with a water spout to keep them counter dry!
Color: Black - 9.25″, Color: Black - 9.25″
I am thoroughly impressed with this product. I tried a product that goes over the middle of the sink and it blocked everything off and would always fall off in a funny ways. I had no room for my pots and pans and started getting irritated with it. This is up and out of the way has a little spicket to drain off the water and as you can see I got all of my sponge and soaps in the same spot which is wonderful cleaned off my counter beautifully. I chose the color black to blend in with my black countertop and also to look nice and clean on the counter. One of the best organizers I have ever found for a countertop. It's sturdy metal so far seems rust resistant, but I haven't had it long enough to know for sure. Mobilize easily to clean. Fabulous little sink caddy. I highly recommend to those of you that like to be organized and keep your counter nice and dry, and still arrange things so that it can be out of the way.
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Reviewed in the United States on April 13, 2026

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