Spring Lock Washer

Product Description：

The Hot Dip Galvanized ASTM A153 Spring Lock Washer is a high-durability anti-loosening washer designed for harsh outdoor applications, especially in utility pole hardware, overhead line fittings, and power transmission systems. Manufactured with high-strength carbon steel and protected with a hot dip galvanized ASTM A153 coating, this spring lock washer provides exceptional corrosion resistance, long service life, and stable locking performance in coastal, high-humidity, and industrial environments.

This ASTM A153 spring lock washer is commonly used with galvanized bolts, square nuts, anchor rods, and pole line hardware to prevent loosening caused by vibration, wind load, or temperature changes. Its spring-type locking structure ensures tight fastening, making it ideal for overhead power lines, telecommunication towers, substations, distribution networks, and other mechanical installations requiring secure connections.

Product Advantages：

1. Superior Anti-Loosening Performance: The helical shape exerts continuous force after fastening, preventing nuts or bolts from loosening in vibrating environments.

2. Excellent Corrosion Resistance: Made from high-carbon steel, suitable for various environments with long service life.

3. Wide Applicability: Available in various sizes and grades, compatible with a wide range of bolts and nuts to meet different application needs.

4. Easy Installation: Compatible with standard tools, no special equipment required, simplifying the assembly process.

5. Low Maintenance Cost: Simple structure, easy to inspect and replace, reducing maintenance costs. 

Parameter:

Typical Applications Include:

1. Overhead Power Distribution and Transmission Lines：Installed together with bolts and nuts to secure insulators, cross arms, brackets, and pole line hardware.

2. Telecom Pole and Tower Installations：Prevents loosening in vibration-exposed tower structures.

3. Utility Pole Hardware Assembly & Maintenance：Ideal for repairs, replacements, and new installations.

4. Industrial Machinery and Outdoor Steel Structures：Ensures durable mechanical fastening in corrosive environments.

How to Use:Place the spring lock washer between the nut and mounting surface, then tighten the bolt to allow the washer to compress, providing automatic locking tension.

Safety & Quality Assurance：

Throughout the manufacturing process, this product undergoes rigorous dimensional checks, tension testing, and durability assessments to guarantee consistent performance. Multiple inspection stages ensure that no defective items leave the facility, with full batch traceability for rapid issue resolution. Each washer is securely packaged to prevent damage or moisture ingress during transit. We offer comprehensive after‑sales support—covering returns, replacements, and technical assistance—to ensure safe and satisfactory use.

Frequently Asked Questions:

Q1: Can this washer prevent loosening under vibration?

A1 : Yes, the spring locking structure ensures strong anti-loosening performance.

Q2: Is it suitable for outdoor long-term installation?

A2 : Yes, the hot dip galvanized coating ensures long-term corrosion resistance.

Q3: Can it be used with standard utility pole bolts?

A2 : Yes, it fits standard threaded utility hardware.

We supply a wide range of spring lock washers in various sizes. If you’re looking for specific dimensions or models, please refer to our catalog above. Simply provide the size, inner diameter, or part number, and we’ll be happy to offer you a quote. Feel free to leave us a message, email us your requirements, or call directly for assistance or to place an order.