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HILLMAN 5/16 in. D X 4 in. L Hot Dipped Galvanized Steel Hex Bolt 50 pk

HILLMAN 5/16 in. D X 4 in. L Hot Dipped Galvanized Steel Hex Bolt 50 pk

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Hillman 5/16 in. D x 4 in. L Hot Dipped Galvanized Steel Hex Bolt — a dependable, outdoor-ready fastener designed to withstand the elements. This 50-pack delivers a ready supply fo…

Hillman MPN 811557
Sold Locally Only

This product isn’t sold on our website — see your local hardware store.

Typical Store Price i
Typical store price: low $38.99, average $45.99
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About Product Overview

Hillman 5/16 in. D x 4 in. L Hot Dipped Galvanized Steel Hex Bolt — a dependable, outdoor-ready fastener designed to withstand the elements. This 50-pack delivers a ready supply for larger projects or ongoing repairs, backed by Hillman’s trusted hardware standards.

Key specifications: 5/16 in diameter (≈8 mm) and 4 in length (≈102 mm). The hot-dipped galvanized coating provides superior rust resistance for exterior applications. The bolt features a coarse thread for quick driving and strong bite in wood, paired with a Grade 2 general-purpose rating. It comes with a hex head designed for easy driving with standard wrenches or drivers, and is sold boxed in a 50-piece package.

  • Corrosion resistance for outdoor use thanks to hot-dip galvanization, helping your projects stand up to moisture and weather.
  • Versatile size pairs well with common lumber thicknesses and wood-to-metal assemblies, especially where a strong, long fastener is required.
  • Wood-friendly threading with a coarse profile that bites quickly into softwood for reliable, fast installations.
  • Bulk packaging—50 bolts per box—ideal for contractors, workshops, and bulk DIY projects.
  • Brand trust with Hillman, a name known for dependable fasteners and straightforward, practical hardware solutions.

Ideal uses: exterior decking and fencing projects, railing connections, pergolas, sheds, and other outdoor constructions that benefit from durable, long-lasting fasteners. Use with matching hex nuts and washers to create secure, load-bearing assemblies. While Grade 2 offers solid general-purpose performance, reserve these bolts for non-critical structural connections where high-strength fasteners are not required.

Keep a box on hand for quick replacements, routine maintenance, or new builds. Hillman’s 5/16 x 4" hot-dip galvanized hex bolts provide steady, dependable performance from the first drive to the final tightening.

The Details Specifications

Brand Hillman
SKU 54054
UPC 008236132168
Unit 0
Case Pack Quantity 2 per case
Retail Unit Quantity 1
Unit of Measure 50 BX
Dimensions (L × W × H) 5 × 4 × 3
Weight 5 lbs
Cubic Feet 0.1016 ft³
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

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