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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Ships within 48 hours · Estimated delivery Sep 20 - Sep 25

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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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★★★★★ 5
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Reviewed in the United States on February 7, 2026
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Thomas Lathrop
Pawtucket, US
★★★★★ 5
Good deal
Good price for a good starter, arrived quicker than anticipated, well packaged, easy install and works as it should.
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Reviewed in the United States on August 19, 2025
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TN
Boise, US
★★★★★ 5
Works fine 3 months in
Installed a few months ago, before the winter. I was chasing a no-start after replacing the old battery. We've seen single digit temps in the meantime and it is working well. The fit is perfect in a 2010 focus. If you can slide it in from the side and not drop it in from the top, you can replace it without taking off the intake manifold. There are useful videos online showing this. Good luck!
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Reviewed in the United States on December 28, 2025
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