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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Mick
Whiting, US
★★★★★ 5
“Tiny Backpack, Big Personality!”
This little backpack is doing big kid things — and my toddler knows it. The second we strapped it on, he marched around like he was off to close a business deal with juice boxes in both hands. It’s the perfect size for tiny shoulders, and the chest buckle? GENIUS. No more slippy straps or bag-flinging tantrums. It stays put like a champ, even during epic playground sprints and spontaneous dance moves in the grocery store. The material is sturdy, the zippers glide like butter, and the reflective strip makes my toddler look like he’s ready for a baby night shift. The color combo is sleek — black and grey with just the right touch of “cool kid on campus” energy. Plenty of space for snacks, sippy cups, a favorite toy, and 14 mysterious pebbles he insisted on collecting “for science.” If your 2-4-year-old wants to carry their own stuff and look proud doing it — this is the backpack for them. Highly recommend (and yes, I already ordered another one for backup... because toddlers). 🎒
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Reviewed in the United States on June 26, 2025
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priscilla
Omaha, US
★★★★★ 5
Good! Recommend
Size: Small, Color: Pink Dino
My 2 year old loves this backpack. I love the snap in the front for additional support of the distribution of weight. It has a good size cup holders and the inside of the bag is very spacious.
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Reviewed in the United States on December 11, 2025
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vkb
Lake Worth, US
★★★★★ 5
A good buy especially for young kids
Our community is providing school supplies this year for an elementary school that we adopted. Backpacks are in big demand but, as you know if you’ve been shopping, pretty pricey. This backpack was a Prime-day find so I bought a couple of them but, even back to the regular price, it’s a good deal especially for very young kids. In person the backpack is cute and stylish with the vibrant range of colors you see in the product pictures. I bought the large backpack which, as you can see in the photo, is more than tall enough for a standard manila folder. The stitching seems sound and the straps work as you would expect; it also has two side pockets. If I had to pick a weak spot, I’d say it’s the zipper, especially the one on the front pouch. It’s not a problem at the moment but it’s nylon, not metal, and so I don’t expect it to last forever. But if it gets through one school year, I consider that good. I think it’s a pretty good buy if you’re on a budget.
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Reviewed in the United States on July 14, 2025
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Solomon’s Mom
Houston, US
★★★★★ 4
Backpack Backpack
Size: Small, Color: Pink Dino
Cute, definitely a perfect size for my tall 3 yr old. (3’7”) I did have to let it air out though. Has a weird smell.
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Reviewed in the United States on March 31, 2026
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Amazon Customer
Houston, US
★★★★★ 5
Two words: Double. Zipper.
Size: Small, Color: Purple
Great backpack for transitioning out of diaper bag but not yet ready to fling caution to the wind and leave the house with nothing. The real win on this is the double zipper. Zipping one way only is the worrrrst, and you don’t have to with this. So if you end up getting another one, that’s fine, but do yourself a favor and confirm the double zipper.
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Reviewed in the United States on January 1, 2026

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