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HILLMAN 5/8 in. D X 4 in. L Hot Dipped Galvanized Steel Hex Bolt 25 pk

HILLMAN 5/8 in. D X 4 in. L Hot Dipped Galvanized Steel Hex Bolt 25 pk

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Meet the Hillman 5/8 in. D X 4 in. L Hot Dipped Galvanized Steel Hex Bolt — a rugged, exterior-ready fastener designed to deliver dependable strength and enduring rust protection i…

Hillman MPN 811664 In Stock & Ready to Ship
Local Price Check i Local stores may price this as low as $66.99. Our online price is $73.99.
$73.99
Includes free shipping on orders over $75 · $8.99 standard below
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About Product Overview

Meet the Hillman 5/8 in. D X 4 in. L Hot Dipped Galvanized Steel Hex Bolt — a rugged, exterior-ready fastener designed to deliver dependable strength and enduring rust protection in outdoor projects. Built to handle the demands of decks, fences, and garden structures, this Grade 2 hex bolt pairs seamlessly with nuts and washers to create secure, lasting joints.

  • Corrosion resistance that lasts. The hot dipped galvanized coating shields steel from moisture, humidity, and outdoor elements, making it a smart choice for exterior installations where bare steel would quickly degrade.
  • Solid dimensions for versatile connections. 5/8 in (diameter) by 4 in (length) provides a robust, long reach for timber-to-timber or timber-to-soft metal assemblies.
  • Coarse thread for quick, reliable driving. The coarse thread design ensures fast, confident engagement in wood and other softer substrates, reducing driving effort on the job.
  • Durable construction you can trust. Made from steel with a hex head, this bolt is built to resist bending and wear in outdoor environments, delivering dependable performance project after project.
  • Ready-to-use packaging. 25 bolts per boxed package keeps your outdoor hardware kits stocked for multiple builds without constant reordering.

Ideal use cases:

  • Deck framing and railing intersections where a sturdy, corrosion-resistant fastener is essential.
  • Fence posts, gates, and pergola connections that face weather exposure.
  • Outdoor sheds, furniture, and other timber-based structures requiring durable, easy-to-drive fasteners.

Why choose this Hillman hex bolt over alternatives? It combines robust exterior protection with practical sizing and packaging for real-world projects. The 5/8 in head diameter and 4 in length are tuned for reliable engagement in common outdoor timbers, while the galvanized finish provides a durable barrier against rust — extending the life of your assembly and reducing maintenance over time.

  • Brand: Hillman
  • Finish: Hot Dipped Galvanized
  • Grade: 2
  • Diameter: 5/8 in (approximately 16 mm)
  • Length: 4 in (approximately 102 mm)
  • Material: Steel
  • Thread Type: Coarse
  • Head Diameter: 5/8 in
  • Package Quantity: 25 bolts
  • Packaging Type: Boxed
  • Product Type: Hex Bolt

The Details Specifications

Brand Hillman
SKU 55085
UPC 008236132625
Unit 0
Case Pack Quantity 2 per case
Retail Unit Quantity 1
Unit of Measure 25 BX
Dimensions (L × W × H) 7 × 5 × 3
Weight 11 lbs
Cubic Feet 0.1016 ft³
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

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