Hillman Split Lock Galvanized Washer, Steel Washers, 5/16-Inch, 100-Pack, Silver, 811053

Description

Product Overview

The Hillman Split Lock Galvanized Washer is engineered for demanding fastening applications where reliability and durability are paramount. Constructed from high‑grade alloy steel, each washer undergoes a hot‑dipped galvanizing process that creates a robust, rust‑resistant exterior finish. The split‑lock design features two tapered ends that bite into the material surface, delivering superior resistance to loosening caused by vibration or dynamic loads. With an outside diameter of 0.38 inches, a thickness of 0.35 inches, and a 5/16‑inch fastener size, these washers are precisely sized to work with standard bolts, nuts, and screws, providing a secure, load‑bearing interface.

Every pack contains 100 washers, each weighing a negligible 0.01 ounces, making them easy to handle while still offering the strength needed for heavy‑duty projects. The round head and split style combine to distribute load evenly, reducing the risk of material deformation or pull‑through. Whether you are assembling furniture, constructing frames, or securing hardware in industrial equipment, these washers deliver consistent performance across a variety of substrates, including soft woods, treated lumber, and metal components.

Designed for both professional tradespeople and dedicated DIY enthusiasts, the Hillman washers meet rigorous industry standards and are backed by The Hillman Group’s reputation for quality. The product dimensions of 2.7 × 2.4 × 1.6 inches ensure compact packaging, while the UPC 008236131949 and part number 811053 facilitate easy inventory management and reordering. As a non‑discontinued item, it remains readily available for ongoing projects and future maintenance needs.

Usage

These split lock washers excel in environments where vibration is a constant factor, such as machinery assemblies, automotive repairs, and outdoor construction. The split ends grip the substrate, preventing the nut or bolt from backing out, which is especially valuable in applications involving moving parts or fluctuating temperatures. For woodworking projects, the washers provide a protective barrier that distributes pressure evenly, safeguarding delicate wood fibers and extending the life of the joint.

When working with treated lumber, the hot‑dipped galvanized coating ensures that the washers will not corrode when exposed to the chemicals present in pressure‑treated wood. This makes them an ideal choice for decks, fences, and outdoor structures where moisture and chemical exposure are common. Additionally, the washers are suitable for metal-to‑metal connections, offering a reliable interface that mitigates the risk of galling or surface damage.

Installation is straightforward: place the washer between the fastener head and the workpiece, then tighten the nut or screw to the recommended torque. The split design will automatically adjust to the material’s surface, creating a secure lock without the need for additional locking mechanisms. This simplicity reduces installation time and minimizes the chance of errors, making the product a favorite among contractors who value efficiency on the job site.

Why Choose Us

Choosing Hillman means selecting a brand with a long history of delivering dependable fastening solutions. Our split lock washers are manufactured under strict quality control processes, ensuring each unit meets exact dimensional tolerances and performance criteria. The hot‑dipped galvanizing not only provides superior corrosion resistance but also extends the service life of the washers, delivering long‑term value for both commercial and residential projects.

We stand behind our products with a comprehensive warranty that covers material defects and manufacturing inconsistencies. Should any issue arise, our dedicated customer support team is ready to assist with troubleshooting, replacement, or technical guidance, reinforcing our commitment to customer satisfaction and after‑sales service.

Furthermore, Hillman’s extensive distribution network guarantees rapid availability and consistent pricing, allowing you to keep your inventory stocked without unexpected delays. By integrating these washers into your fastening system, you benefit from a proven solution that reduces maintenance costs, improves safety, and enhances overall project quality.

Key Features

• Split‑lock design grips material to prevent loosening, ensuring a secure connection even under vibration.
• Hot‑dipped galvanized finish provides excellent rust resistance for long‑term outdoor use.
• Alloy steel construction delivers high strength while remaining lightweight for easy handling.
• Versatile 5/16‑inch size fits a wide range of bolts, nuts, and screws across multiple industries.
• Backed by Hillman’s warranty and responsive customer support for peace of mind.

FAQ

What materials are these washers compatible with?

The split lock washers work well with soft woods, hardwoods, treated lumber, and most metal substrates. The galvanized coating protects against corrosion when used with moisture‑exposed or chemically treated materials.

How does the split‑lock design prevent loosening?

The washer’s split ends create a slight tension that bites into the surface of the workpiece. When the fastener is tightened, this tension translates into a locking action that resists back‑off caused by vibration or dynamic loads.

Are these washers suitable for high‑temperature applications?

While the alloy steel core can tolerate moderate temperature ranges, the galvanized coating may degrade at extreme temperatures. For high‑heat environments, consider a specialty washer designed for elevated temperature resistance.

Can I use these washers with stainless steel fasteners?

Yes, the washers can be paired with stainless steel bolts or nuts. The galvanised finish will provide a protective barrier, though the aesthetic match may differ from the stainless finish.

What is the recommended torque setting for installation?

Follow the torque specifications provided by the fastener manufacturer. The split lock washer does not significantly alter torque values, but ensure the fastener is tightened to the proper level to achieve optimal locking performance.