Hillman 3/8 in. x 7 in. Zinc-Plated Carriage Bolts (50-Pack)

Durable zinc-plated steel carriage bolts for fastening wood-to-wood or wood-to-metal connections. The domed head and square neck provide a clean, semi-flush finish and resist spinning during installation.

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Key Features:

• Strong Steel Construction: Zinc-plated steel resists corrosion and delivers reliable clamping force
• Clean, Semi-Flush Finish: Smooth round head eliminates the need for a washer in many applications
• Self-Locking Square Neck: Prevents bolt spin for easier tightening with a nut
• Ideal for Wood Projects: Designed to fasten wood to wood or wood to metal frames
• Convenient Bulk Pack: 50-count box for jobsite efficiency and consistency

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Specifications Table:

Specification	Details
Diameter	3/8 in
Length	7 in
Material	Steel
Finish	Zinc-plated
Head Type	Round (carriage) with square neck
Thread Type	Coarse
Grade	2
Package Quantity	50
Measurement System	SAE
Packaging Type	Boxed

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Frequently Asked Questions (FAQ):

Q: What size are these carriage bolts?
A: They are 3/8 inch diameter by 7 inches long.

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Q: What material and finish are they?
A: Steel with a zinc-plated finish for corrosion resistance.

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Q: What projects are these best for?
A: They’re commonly used to fasten a wooden face to a wood or metal frame, such as decks, fences, and furniture.

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Q: Do I need a tool to hold the head while tightening?
A: Usually no—the square neck under the head locks into the wood to prevent spinning as you tighten the nut.

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Q: How many bolts are in the package?
A: 50 bolts per pack.

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A Polished, Workhorse Fastener for Clean, Cohesive Builds

The quiet elegance of a domed carriage head brings order and refinement to functional joinery. Its zinc sheen catches light subtly, while the squared neck keeps lines crisp and true. Use them in repeating rhythms across fences or bench slats for a tailored, architectural look. A staple of refined craftsmanship, they’re the discreet detail that elevates everyday structures.

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Outfit your next build with reliable, clean-finished fastening—add this 50-pack of Hillman carriage bolts to your cart today.