Hillman 1/2 in. x 5-1/2 in. Hot-Dipped Galvanized Steel Carriage Bolts, 25-Pack

Hillman 1/2 in. x 5-1/2 in. Hot-Dipped Galvanized Steel Carriage Bolts, 25-Pack

Regular price $58.99

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Hot-Dipped Galvanized Carriage Bolts, 1/2 in. x 5-1/2 in., 25-Pack

Durable Hillman carriage bolts engineered for wood-to-wood or wood-to-metal connections. Hot-dipped galvanized steel resists corrosion for outdoor and coastal applications, with a smooth dome head and square neck for secure, flush fastening.


Key Features:

  • Corrosion-Resistant Protection: Hot-dipped galvanization stands up to moisture and outdoor exposure
  • Secure, Flush Fit: Dome head with square neck locks into wood to prevent spinning—no washer needed
  • Strong Steel Construction: Grade 2 steel for reliable fastening in structural projects
  • Coarse SAE Threads: Easy engagement and holding power for general-purpose builds
  • Value Pack: 25 bolts per boxed pack for efficient stocking and project use

Specifications Table:

Specification Details
Diameter 1/2 inch
Length 5-1/2 inch
Material Steel
Finish Hot Dipped Galvanized
Grade 2
Thread Type Coarse
Unit of Measurement SAE
Number in Package 25 pack
Packaging Type Boxed
Head Style Carriage (dome head with square neck)

Frequently Asked Questions (FAQ):

Q: What size are these carriage bolts?
A: They are 1/2 inch diameter by 5-1/2 inch length with coarse SAE threads.


Q: Are they suitable for outdoor use?
A: Yes. The hot-dipped galvanized finish provides robust rust prevention for outdoor and marine-adjacent environments.


Q: Do I need a washer or a driving tool for the head?
A: The dome head provides a semi-flush finish and the square underside locks into wood, eliminating the need for a washer and a driving tool for the head.


Q: What material and grade are the bolts?
A: They are Grade 2 steel with a hot-dipped galvanized finish.


Q: How many bolts come in the package?
A: 25 bolts per retail package.


A Clean, Industrial Accent with Enduring Strength

The softly domed head and silvery galvanized sheen bring a refined industrial note to exposed joinery. Its square-neck detail creates a crisp, tailored fit that feels intentional and polished. Use these bolts to punctuate outdoor benches or rustic tables—function meeting form with subtle flair. Essential hardware that elevates utility to a quiet luxury.


Choose Hillman galvanized carriage bolts for a clean, secure install that lasts in any environment.

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