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Hillman

Hillman 3/8 in. x 8 in. Zinc-Plated Steel Carriage Bolts, Coarse Thread (50-Pack)

Hillman 3/8 in. x 8 in. Zinc-Plated Steel Carriage Bolts, Coarse Thread (50-Pack)

Regular price $1.55 USD
Regular price Sale price $1.55 USD
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Hillman 3/8" x 8" Zinc-Plated Carriage Bolts (50-Pack)

Durable Hillman steel carriage bolts with zinc-plated finish for corrosion resistance. Coarse thread, 3/8 in. diameter by 8 in. length, ideal for wood-to-wood or wood-to-metal fastening; 50 bolts per box.


Key Features:

  • Corrosion-Resistant Zinc Finish: Zinc plating protects against rust for long-lasting performance.
  • Heavy-Duty Steel Construction: Reliable Grade 2 steel for general fastening applications.
  • Coarse Thread Design: Provides strong hold in wood assemblies and easier installation.
  • Standard 3/8 in. x 8 in. Size: Versatile length and diameter for common structural and framing tasks.
  • Bulk Value Pack: Box of 50 carriage bolts to keep projects moving without frequent reorders.

Specifications Table:

Specification Details
Diameter 3/8 in.
Length 8 in.
Material Steel
Finish Zinc-Plated
Thread Type Coarse (UNC)
Head Style Round (Carriage)
Grade Grade 2
Unit of Measurement SAE
Quantity in Package 50 pk
Packaging Type Boxed
Model Number 388CBZ
Item Number 240204
Made In China

Frequently Asked Questions (FAQ):

Q: Are nuts and washers included?
A: No—this box includes only carriage bolts; purchase compatible 3/8 in. nuts and washers separately.


Q: What thread type are these bolts?
A: They are coarse thread (UNC).


Q: What material and grade are the bolts?
A: They are steel, Grade 2.


Q: Where are these best used?
A: Ideal for wood-to-wood or wood-to-metal connections where a smooth, domed head is desired.


Q: What finish do they have?
A: Zinc-plated for corrosion resistance.


Quiet Strength with a Polished, Industrial Edge

These zinc-plated carriage bolts bring an understated gleam to utilitarian detail, turning structure into style. The domed head is a refined punctuation mark—clean, smooth, and beautifully minimal. Use them exposed on reclaimed beams or custom furniture for a deliberate, crafted statement. It’s the kind of hardware that elevates everyday builds into thoughtful, luxurious design.


Outfit your next project with these zinc-plated Hillman carriage bolts and build with strength, style, and confidence.

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