Stainless Steel 5/16 in. x 1-1/2 in. Carriage Bolts (50-Pack)

Durable Hillman stainless steel carriage bolts provide strong, rust-resistant fastening for wood-to-wood or wood-to-metal projects. The round head and square neck lock into place for a clean, semi-flush finish and easy installation outdoors or indoors.

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Key Features:

• Corrosion Resistant: Stainless steel construction stands up to weather and moisture for long-lasting performance
• Clean, Flush Look: Low-profile round head eliminates the need for a washer in many applications
• Self-Locking Square Neck: Prevents spinning for easier tightening with a nut
• Project-Ready Pack: 50-piece boxed pack for efficient jobsite or shop use
• SAE Coarse Threads: 5/16 in.-18 x 1-1/2 in. sizing fits common hardware standards

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Specifications Table:

Specification	Details
Brand	Hillman
Size	5/16 in.-18 x 1-1/2 in.
Diameter	5/16 in.
Thread Count	18 TPI (SAE coarse)
Length	1-1/2 in.
Material	Stainless Steel
Head Style	Round head with square neck (carriage bolt)
Number in Package	50
Packaging Type	Boxed
Unit of Measurement	SAE
Category	Carriage Bolts
Package Dimensions (L x W x H)	3.5 in x 3.4 in x 2 in
Package Weight	1.7 lb

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Frequently Asked Questions (FAQ):

Q: What materials are these suitable for?
A: Designed to fasten a wooden face to wood or metal frames; commonly used in decks, fences, and furniture.

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Q: Are nuts and washers included?
A: No, this pack contains only carriage bolts; pair with matching 5/16 in.-18 nuts and washers as needed.

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Q: Will they resist rust outdoors?
A: Yes. The stainless steel finish provides superior rust prevention for exterior applications.

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Q: What thread specification do these bolts use?
A: SAE coarse thread, 5/16 in.-18.

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

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Polished Strength for Thoughtful Timber Details

These stainless carriage bolts bring a refined, utilitarian elegance to woodwork, letting joinery read as jewelry. The domed head offers a smooth, luminous accent while the square neck tucks in neatly for a tailored finish. Use them in sightlines—on garden gates or bench slats—to celebrate honest materials. They’re the quiet, luxe hardware choice that elevates everyday construction.

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Choose these rust-resistant stainless carriage bolts for a clean, reliable fastening solution on your next wood project.