5/16 in. x 5-1/2 in. Zinc-Plated Carriage Bolts (50-Pack)

Heavy-duty zinc-plated steel carriage bolts designed for secure fastening in wood and metal projects. The 5/16 in. diameter and 5-1/2 in. length provide strong hold and corrosion resistance for indoor and outdoor applications.

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Key Features:

• Durable Construction: Zinc-plated steel resists rust and corrosion for long-lasting performance
• Secure Grip: Square neck locks into wood to prevent bolt rotation during tightening
• Versatile Use: Ideal for decks, fencing, furniture assembly, and general construction
• Bulk Value: Convenient 50-pack for larger projects and jobsite needs
• Smooth Dome Head: Low-profile rounded head offers a clean, snag-free finish

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Specifications Table:

Specification	Details
Bolt Type	Carriage bolt
Material	Steel
Finish	Zinc-plated
Diameter	5/16 inch
Length	5-1/2 inch
Thread Type	Coarse
Head Style	Dome head with square neck
Package Quantity	50
Product Dimensions (package)	13.6 x 4.5 x 3.3 inches
Package Weight	12.8 lb

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Frequently Asked Questions (FAQ):

Q: What nuts and washers fit these bolts?
A: Use 5/16 in. coarse-thread nuts and corresponding flat or lock washers for proper fit.

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Q: Are these suitable for outdoor use?
A: Yes. The zinc plating offers corrosion resistance suitable for most outdoor environments; for coastal or highly corrosive areas, consider stainless steel.

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Q: Do these bolts have full threads?
A: Yes, they are fully threaded along the 5-1/2 in. length.

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Q: What tools are needed for installation?
A: Tighten with a wrench or socket on the nut side; the square neck seats into wood to hold the bolt head in place without a screwdriver.

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Q: Can they be used with metal?
A: They can be used in pre-drilled metal with a nut and washer; ensure proper hole size for the 5/16 in. diameter.

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A Polished Hardware Essential with Architectural Poise

The smooth domed head of this carriage bolt brings a refined, tailored detail to woodworking and built-ins. Its zinc sheen offers a crisp, modern accent against natural timber, elevating utilitarian joinery into a design statement. Style it in exposed applications on benches or gates for a subtle industrial note. This is the quiet luxury of hardware—precise, durable, and impeccably finished.

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Secure your projects with reliable, corrosion-resistant performance—add this 50-pack to your toolkit today.