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HILLMAN 1/4 in. X 6 in. L Hot Dipped Galvanized Steel Carriage Bolt 100 pk
HILLMAN 1/4 in. X 6 in. L Hot Dipped Galvanized Steel Carriage Bolt 100 pk
HILLMAN 1/4 in. X 6 in. L Hot Dipped Galvanized Steel Carriage Bolt 100 pk

HILLMAN 1/4 in. X 6 in. L Hot Dipped Galvanized Steel Carriage Bolt 100 pk

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Hillman 1/4 in. x 6 in. Hot-Dipped Galvanized Steel Carriage Bolts are built for enduring outdoor joints where strength and corrosion resistance matter most. This 100-pack is ready…

Hillman MPN 812530
Sold Locally Only

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

Typical Store Price i
Typical store price: low $59.99, average $70.99
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About Product Overview

Hillman 1/4 in. x 6 in. Hot-Dipped Galvanized Steel Carriage Bolts are built for enduring outdoor joints where strength and corrosion resistance matter most. This 100-pack is ready to tackle deck projects, fencing, garden structures, and rugged outdoor furniture with confidence.

  • Outstanding protection for outdoors: hot-dipped galvanized finish shields steel from moisture, salt, and the elements, extending the life of joints exposed to weather and humidity.
  • precisely sized for wood-to-wood connections: 1/4 in. diameter and 6 in. length provide reliable reach for thick boards and sturdy assemblies.
  • Coarse thread for quick, secure fastening: optimized for softer and engineered wood, delivering strong bite and ease of installation.
  • Prevents turning during tightening: rounded carriage bolt head with a square under-head sits neatly into wood, keeping the bolt stationary as you fasten nuts and washers.
  • Ready-to-use packaging: boxed, with 100 bolts per箱, making it simple to stock up for large projects or ongoing maintenance.
  • Quality you can count on: made from robust steel and finished to SAE-grade standards, designed for dependable performance across multiple outdoor applications.

Ideal use cases: attach railings or apron boards to a wooden frame, assemble outdoor furniture frames, install fence bracing, or secure pergola and gazebo components that endure rain, sun, and season-to-season exposure.

How to use:

  • Align the wood pieces and mark where the bolts will pass through.
  • Drill a hole slightly larger than the bolt’s shank to prevent splitting, then insert the carriage bolt with the square neck seated into the wood.
  • From the opposite side, thread a nut and washer (recommended for softwood; use a washer to distribute load on hardwood).
  • Tighten until snug—avoid over-torquing to prevent wood cracking.

Specs at a glance:

  • Finish: Hot-Dipped Galvanized
  • Material: Steel
  • Diameter: 1/4 in.
  • Length: 6 in.
  • Thread Type: Coarse
  • Grade: 2
  • Head Type: Carriage bolt (rounded head with square under-head)
  • Packaging: Boxed
  • Unit of Measurement: SAE
  • Includes: 100 bolts per package

The Details Specifications

Brand Hillman
SKU 55406
UPC 008236133554
Unit 0
Case Pack Quantity 2 per case
Retail Unit Quantity 1
Unit of Measure 100 BX
Dimensions (L × W × H) 7 × 5 × 3
Weight 8 lbs
Cubic Feet 0.1016 ft³
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

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