Nord-Lock Wedge Locking Washers – Steel (Delta Protekt) Washer with Zinc Flake Coating, Vibration Resistant Safety Washers for M30 Bolts – Enlarged Outer Diameter Washers – 1 Pair

Description

Product Overview

Nord-Lock wedge-locking washers are precision‑engineered components designed to work with M30 steel bolts and nuts in the most demanding industrial applications. Constructed from high‑grade steel, each washer receives a zinc‑flake coating that provides superior corrosion resistance, even in harsh marine or offshore environments. The washers feature an enlarged outer diameter that distributes load more evenly, reducing stress concentrations and extending the life of the fastener assembly. With a compact thickness of 0.26 inches and a weight of approximately one pound per pair, they are easy to handle while delivering maximum performance. The unique wedge‑locking mechanism creates tension rather than relying on friction, ensuring that the joint remains secure under severe vibration and dynamic loads. Each package contains a single glued pair, guaranteeing correct orientation and simplifying installation for technicians and engineers.

Usage

These washers are ideal for a wide range of sectors where reliability and safety are paramount. In the energy sector, they secure turbine housings and generator frames that experience constant cyclic loading. Robotics manufacturers rely on the vibration‑proof characteristics to maintain precision in high‑speed motion systems. Medical equipment designers use them to lock critical components that must remain stable over long service periods. Offshore platforms benefit from the corrosion‑resistant coating, protecting assemblies exposed to saltwater spray. Additional applications include mining equipment, bridge construction, shipbuilding, and heavy‑duty manufacturing machinery. The washers are compatible with bolts up to 1‑1/8 inch in diameter, making them versatile for many standard and custom fastener configurations.

Why Choose Us

Choosing Nord‑Lock means selecting a brand with a proven track record of safety and engineering excellence. The company’s patented wedge‑locking technology has been adopted worldwide for critical load‑bearing applications, and each washer undergoes rigorous quality control testing to meet ISO standards. Our zinc‑flake coating process is applied in a controlled environment, ensuring uniform coverage and long‑term durability. We stand behind every product with comprehensive technical support, offering installation guidance, engineering consultation, and a responsive after‑sales service team. When you purchase this pair of washers, you receive not only a high‑performance component but also the assurance of a globally recognized manufacturer dedicated to continuous improvement and customer satisfaction.

Key Features

• Robust steel construction with zinc‑flake coating for exceptional corrosion resistance.
• Wedge‑locking design creates tension, eliminating reliance on friction for joint security.
• Enlarged outer diameter distributes load evenly, reducing stress on bolts and nuts.
• Proven performance in high‑vibration environments such as energy, robotics, and offshore applications.
• Dedicated technical support and after‑sales service to assist with installation and troubleshooting.

FAQ

What size bolts are compatible with these washers?

The washers are specifically sized for M30 bolts, but they also work with bolts up to 1‑1/8 inch in diameter, providing flexibility for a range of standard fastener sizes.

How does the wedge‑locking mechanism differ from traditional lock washers?

Traditional lock washers rely on friction between the washer and the mating surface, which can slip under vibration. The wedge‑locking system creates a mechanical tension that locks the bolt in place, offering superior resistance to loosening in dynamic load conditions.

Is the zinc‑flake coating suitable for marine environments?

Yes, the zinc‑flake coating provides high corrosion resistance, making the washers ideal for marine and offshore applications where exposure to saltwater and humidity is common.

Can these washers be reused after removal?

While the washers maintain their structural integrity after removal, the glued pair is intended for single‑use installation to ensure optimal tension. For critical applications, it is recommended to replace them with a new pair.

What warranty or support does Nord‑Lock offer?

Nord‑Lock provides a limited warranty covering manufacturing defects and offers technical assistance, installation guidance, and a responsive customer service team to address any post‑purchase concerns.