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Regular Split Lock Washer Hot-Dipped Galvanized Plating

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Regular Split Lock Washer with Hot-Dipped Galvanized Plating – Built for Outdoor Performance

When corrosion resistance and vibration control are both essential, the regular split lock washer with hot-dipped galvanized (HDG) plating delivers rugged, long-lasting performance. Designed for demanding outdoor and structural applications, these washers combine proven mechanical locking action with a thick zinc coating that protects against rust, moisture, and harsh environmental exposure.

Engineered for Strength and Corrosion Resistance

Material & Construction

Manufactured from medium carbon steel and heat-treated for durability, HDG split lock washers are built to maintain tension under load. The helical split design acts like a spring, applying continuous pressure between the fastener head and the mating surface. This tension helps resist loosening caused by vibration, dynamic movement, or thermal expansion—critical in structural and heavy equipment assemblies.

Hot-Dipped Galvanized Coating

The hot-dip galvanizing process immerses the washer in molten zinc, forming a thick, bonded coating that provides superior corrosion resistance compared to standard zinc plating. This protective layer makes HDG split lock washers ideal for exterior construction, marine environments, agricultural equipment, and infrastructure projects. They are specifically engineered to be used with hot-dipped galvanized bolts and nuts to prevent galvanic corrosion and ensure coating compatibility.

Specifications & Compliance

Material: Medium carbon steel
Finish: Hot-Dipped Galvanized (HDG)
Sizes: Fractional sizes from #6 through 1-1/2", plus metric options
Standards: ASME B18.21.1 and SAE J489 compliant
Compatible with ASTM A307, A325, and A490 structural bolts (HDG applications)

Common Applications

Structural steel and bridge construction
Utility poles, fencing, and guardrails
Agricultural and marine equipment
Outdoor industrial installations

For fastening systems exposed to the elements, regular split lock washers with HDG plating provide the strength, corrosion protection, and vibration resistance required for long-term reliability in demanding environments.