Hillman 1/4 in. x 5 in. Hot Dipped Galvanized Steel Carriage Bolt — a rugged, weather-ready fastener designed for outdoor timber projects that demand lasting strength and corrosion resistance. This 100-pack in boxed packaging is ready to tackle decks, fences, pergolas, and other wood-to-wood connections with confidence.
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Size, material, and finish: 1/4 in. diameter, 5 in. length, steel, Grade 2, with a durable hot-dipped galvanized coating for superior rust resistance in moisture-prone environments.
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Thread and head: Coarse-threaded shaft for dependable bite in wood, paired with a domed carriage bolt head and a square neck under the head to prevent turning as you tighten the nut from the opposite side.
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Package and compatibility: Sold in a 100-piece boxed package, designed for bulk jobs and easy restocking; pairs with standard nuts and washers for secure assemblies.
Why the hot-dipped galvanized finish matters: the thick zinc coating protects both the exposed shank and the load-bearing threads from rust and corrosion, keeping joints robust through rain, humidity, and seasonal weather changes. That makes these carriage bolts a smarter choice than bare steel for any outdoor project where longevity matters.
Ideal use cases include:
- Deck framing, railing posts, and ledger connections that face the elements
- Garden fences, gates, and landscape timber assemblies
- Outdoor furniture, pergola supports, sheds, and timber-to-timber fastenings
Practical tips for best results:
- Pair with matching nuts and washers to distribute load and protect wood surfaces.
- Because the bolt has a square neck, tighten from the opposite side while the head remains stationary to prevent spinning.
- Pre-drill a hole appropriate for the bolt shank to minimize wood splitting and ensure clean, secure seating.
- Choose this 5-inch length when you’re joining multiple thick boards or mounting across substantial timber sections.
Who is this for? DIY homeowners tackling outdoor builds, professional contractors managing weather-exposed timber, and anyone who prioritizes durable, reliable hardware in bulk. The Hillman brand Reliability combined with hot-dip galvanizing delivers a practical, long-lasting solution for timber connections where performance and corrosion resistance are non-negotiable.
