The Hillman 5/8 in. x 3 in. L Zinc-Plated Steel Carriage Bolt (25 pk) delivers durable, clean-fastening performance for wood projects where strength and a neat profile matter. With a zinc-plated finish for corrosion resistance, this bolt is built to endure outdoor and damp environments while maintaining a secure, lasting connection.
Key specs at a glance:
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Size and material: 5/8 in head diameter, 3 in length, steel construction
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Finish and grade: Zinc plated, Grade 2
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Thread type: Coarse
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Unit and packaging: SAE units, 25 bolts per boxed package
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Product type: Carriage bolt
Why this matters
- The rounded bolt head provides a flush appearance on the top surface, while the bolt’s design allows it to be tightened with a nut on the opposite side for a solid connection.
- Coarse threads provide reliable bite into both softwood and hardwood, making it versatile for furniture assembly, deck projects, framing, and outdoor structures.
- The zinc finish helps resist rust and corrosion, extending the life of outdoor installations exposed to the elements.
- Boxed 25-pack makes it easy to stock up for larger projects and keep the right size on hand.
Ideal use cases
- Deck and fence framing where bolts pass through one piece and are secured with a nut on the opposite side
- Wood furniture assembly, such as tables, benches, and shelving units
- Framing and bracket connections in sheds, pergolas, and other outdoor structures
Installation tips
- Plan for proper hole size and pilot drilling to prevent wood splitting and ensure smooth nut engagement.
- Pair these bolts with matching nuts and washers to distribute load and protect the wood surface.
- Choose a length that provides sufficient thread engagement beyond the thickness of the top material.
With the trusted Hillman name, this zinc-plated steel carriage bolt is a practical, reliable choice for durable wood connections. Add the Hillman 5/8 in. x 3 in. L Carriage Bolts to your cart and tackle your next project with confidence.
