Hillman 5/16 in. x 5 in. Hot Dipped Galvanized Steel Carriage Bolt, 50-Pack
SKU: 99106509314

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

Sale price$42.29 Regular price$46.99
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Description

Hillman 5/16 in. x 5 in. Hot Dipped Galvanized Steel Carriage Bolt, 50-PackHillman 5 16 in. x 5 in. Galvanized Carriage Bolts (50 Pack) Durable steel carriage bolts with a hot dipped galvanized finish to resist rust in outdoor and heavy duty applications. The round head and square neck provide a clean, semi flush look and self locking grip in wood to wood or wood to metal projects. Ideal for decks, fencing, and structural framing. Key Features: Rust Resistant Finish: Hot dipped galvanization for superior corrosion protection

Hillman 5/16 in. x 5 in. Galvanized Carriage Bolts (50-Pack)

Durable steel carriage bolts with a hot-dipped galvanized finish to resist rust in outdoor and heavy-duty applications. The round head and square neck provide a clean, semi-flush look and self-locking grip in wood-to-wood or wood-to-metal projects. Ideal for decks, fencing, and structural framing.


Key Features:

  • Rust-Resistant Finish: Hot-dipped galvanization for superior corrosion protection in outdoor environments
  • Secure Hold: Square neck under the round head locks into wood to prevent spinning during installation
  • Clean Appearance: Low-profile round head delivers a neat, semi-flush finish without a washer
  • Heavy-Duty Construction: Grade 2 steel and coarse threads for reliable fastening strength
  • Bulk Value Pack: 50 bolts per boxed package for larger projects

Specifications Table:

Specification Details
Finish Hot Dipped Galvanized
Material Steel
Length 5 inch
Diameter 5/16 inch
Thread Type Coarse
Grade 2
Unit of Measurement SAE
Number in Package 50 pack
Packaging Type Boxed
Category Carriage Bolts

Frequently Asked Questions (FAQ):

Q: What size drill bit should I use for these 5/16 in. carriage bolts?
A: Use a 5/16 in. hole for the shank; in wood, slightly undersize may improve neck bite. For metal, match 5/16 in. and deburr.


Q: Are these suitable for outdoor use?
A: Yes. The hot-dipped galvanized finish provides excellent rust protection for exterior projects like decks and fences.


Q: Do I need a washer with the round head?
A: Typically no; the broad round head provides a semi-flush finish. Use a nut and optional washer under the nut if desired.


Q: What nut and thread type pairs with these bolts?
A: These use coarse SAE threads; pair with matching 5/16 in. coarse-thread nuts.


Q: Can they be used in treated lumber?
A: Hot-dipped galvanized fasteners are appropriate for most pressure-treated lumber; always follow local code and lumber manufacturer guidance.


A clean, industrial accent with enduring strength

The rounded head of this carriage bolt lends a refined, minimal silhouette that whispers utility-chic. Its galvanized sheen brings a subtle, matte texture—perfect for modern rustic detailing on decks, gates, and furniture. Use it as a deliberate design element, lining up heads in symmetrical rows to create quiet rhythm across wood surfaces. It’s a hardworking staple that elevates function into effortless, everyday luxury.


Upgrade your project with rust-proof, clean-finished fastening—add this 50-pack of Hillman galvanized 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: 99106509314

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TheMrs
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★★★★★ 3
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Color: Navy Blue, Size: King
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Mary
Chelsea, US
★★★★★ 5
Very Elegant!!
Color: Bright White, Size: Full/Queen
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Reviewed in the United States on May 20, 2026
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Tbay
Chelsea, US
★★★★★ 5
Excellent buy!
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Color: Cream, Size: King, Color: Cream, Size: King
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Reviewed in the United States on May 5, 2026
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deborah
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★★★★★ 4
Ok
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