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home > Hillman 3/8 in. x 3 in. Zinc-Plated Steel Carriage Bolts, 50-Pack > Hillman 3/8 in. x 3 in. Zinc-Plated Steel Carriage Bolts, 50-Pack

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Hillman 3/8 in. x 3 in. Zinc-Plated Steel Carriage Bolts, 50-Pack3 8 in. x 3 in. Zinc Plated Carriage Bolts (50 Pack) Durable Hillman carriage bolts made from zinc plated steel for rust resistant fastening in wood to wood or wood to metal applications. The rounded head creates a smooth, semi flush finish while the square neck locks into wood to prevent spinning. Key Features: Rust Resistant Zinc Plating: Helps protect against corrosion for long lasting performance Self Locking Square Neck: Prevents bolt rotation in

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

Name: Hillman 3/8 in. x 3 in. Zinc-Plated Steel Carriage Bolts, 50-Pack
Brand: wellness-welten.net
SKU: 8729498035
Price: 32.03 USD
Availability: InStock
Rating: 4.1953000000000005 (1641 reviews)

Durable Hillman carriage bolts made from zinc-plated steel for rust-resistant fastening in wood-to-wood or wood-to-metal applications. The rounded head creates a smooth, semi-flush finish while the square neck locks into wood to prevent spinning.

Key Features:

Rust-Resistant Zinc Plating: Helps protect against corrosion for long-lasting performance
Self-Locking Square Neck: Prevents bolt rotation in wood for easier installation
Smooth, Low-Profile Head: Creates a semi-flush finish without a separate washer
Coarse Thread, SAE Grade 2: Reliable grip for general-purpose fastening
Bulk 50-Pack: Convenient boxed packaging for projects and job sites

Specifications Table:

Specification	Details
Diameter	3/8 in
Length	3 in
Material	Steel
Finish	Zinc-Plated
Grade	2
Thread Type	Coarse
Unit of Measurement	SAE
Packaging Type	Boxed
Number in Package	50
Each Weight	5.300 lb
Product Type	Carriage Bolt
Alternative UPC	037504830963

Frequently Asked Questions (FAQ):

Q: What materials are these bolts best suited for?
A: Designed to fasten a wooden face to wood or metal frames; the square neck bites into wood to prevent spinning.

Q: Can these be used outdoors?
A: Zinc plating offers rust resistance but may not be ideal for all exterior projects; consider hot-dip galvanized for harsh outdoor environments.

Q: Do I need a washer under the head?
A: Typically no—the rounded carriage head provides a semi-flush finish that often eliminates the need for a washer.

Q: What thread type do they have?
A: Coarse thread per SAE standards, suitable for general-purpose fastening.

Q: What size and length are included?
A: Each bolt is 3/8 inch diameter by 3 inches long; this package contains 50 bolts.

A Clean, Crafted Finish for Timber Details

These zinc-plated carriage bolts bring a tailored, streamlined note to carpentry—perfect for benches, gates, and statement woodwork. The domed head offers a refined, flush look while the square neck anchors with confidence. Pair them with oiled oak or painted pine to let hardware quietly elevate the piece. A small detail with big impact, they’re the finishing touch of effortless, polished living.

Secure your project with reliable, rust-resistant carriage bolts—add this 50-pack to your cart today.