Metric Bonded Sealing Washers MUZHUPGUZ 290pcs NBR Rubber & Steel

Description

Product Overview

The MUZHUPGUZ Metric Bonded Sealing Washers are engineered to deliver reliable sealing performance across a broad spectrum of industrial and automotive applications. Each washer combines a hardened carbon steel outer ring with a resilient nitrile rubber (NBR) inner ring, creating a dual‑material construction that balances strength and flexibility. The carbon steel provides excellent resistance to corrosion, heat, and mechanical wear, while the NBR rubber offers superior elasticity and sealing capability, preventing fluid escape even under fluctuating pressure conditions.

Our 290‑piece assortment includes eleven distinct sizes ranging from M5 to M24, ensuring that you have the exact fit for every screw head, valve body, or pipe connection in your inventory. The washers are precision‑machined to metric standards, guaranteeing consistent inner diameters and outer dimensions that match industry specifications. Each size is clearly labeled and stored in individual, color‑coded plastic boxes, simplifying inventory management and reducing the risk of mis‑selection during assembly or maintenance.

Technical specifications for the entire set are as follows: package dimensions 7.48 × 5.12 × 0.91 inches, weight 14.89 oz; model number 163‑MZL‑US; ASIN B0FPM6B1Q4. The product holds a Best Sellers Rank of #68 in Sealing Washers, reflecting its popularity among professionals who demand dependable sealing solutions. With a 5‑star customer rating based on verified reviews, the washers have proven their quality and performance in real‑world environments.

Designed for ease of use, the washers feature a self‑centred design that aligns automatically when installed, reducing installation time and minimizing the chance of misalignment. The bonded construction eliminates the need for separate metal and rubber components, streamlining the supply chain and lowering overall part count. This integrated approach also reduces the likelihood of component separation under vibration or thermal cycling, extending the service life of the sealing assembly.

Usage

These sealing washers are ideally suited for a variety of applications where leak prevention is critical. In automotive contexts, they are commonly employed on oil drain plugs, fuel system connections, and transmission housings, where they protect against oil, fuel, and coolant leaks. Their robust construction makes them equally effective in hydraulic systems, sealing valve bodies, pump housings, and cylinder heads that operate under high pressure and temperature.

For industrial equipment, the washers serve as reliable seals for bearing housings, gearboxes, and pneumatic components. Their ability to withstand harsh chemicals and abrasive environments makes them a preferred choice for fuel lines, water pumps, and chemical processing equipment. Additionally, the washers are compatible with electrical enclosures, providing a moisture‑proof seal that safeguards sensitive circuitry from corrosion and short‑circuit risks.

Installation is straightforward: simply place the washer onto the threaded fastener, ensuring the NBR side faces the fluid source, and tighten to the recommended torque. The self‑centred design ensures even pressure distribution, while the bonded layers prevent the rubber from extruding or tearing under load. This simplicity translates to reduced downtime for maintenance crews and lower labor costs for manufacturers.

Why Choose Us

Choosing MUZHUPGUZ means selecting a partner committed to quality, consistency, and customer satisfaction. Our sealing washers undergo rigorous testing procedures, including tensile strength, compression set, and temperature cycling, to verify that each batch meets or exceeds industry standards. The carbon steel is sourced from reputable suppliers and undergoes a protective coating process that enhances corrosion resistance, extending the functional lifespan of the washers even in aggressive environments.

We stand behind our products with a responsive after‑sales support team ready to assist with technical inquiries, sizing guidance, and replacement parts. Our packaging strategy—individual labeled boxes within a master case—facilitates quick identification and inventory control, a feature especially valuable for large maintenance operations and distributors handling multiple part numbers.

Furthermore, MUZHUPGUZ is dedicated to continuous improvement. Feedback from field applications informs our design refinements, ensuring that each new iteration of our sealing washers incorporates the latest material advancements and performance enhancements. By investing in our products, you benefit from a solution that evolves alongside industry demands.

Key Features

• Dual‑material construction: hardened carbon steel outer ring paired with flexible NBR rubber inner ring for optimal sealing and durability.
• Self‑centred design eliminates misalignment, ensuring even pressure distribution and reliable leak protection.
• Wide size range (M5‑M24) covers most metric fastener applications, reducing the need for multiple inventory items.
• Corrosion‑resistant coating on steel prolongs service life in harsh chemical and moisture‑rich environments.
• Comprehensive after‑sales support and clear packaging for easy identification and quick installation.

FAQ

What sizes are included in the 290‑piece set?

The set contains eleven metric sizes ranging from M5 to M24, with multiple washers per size to accommodate various thread pitches and applications.

Can these washers be used with high‑temperature fluids?

Yes. The carbon steel outer ring is heat‑treated and coated for temperature resistance, while the NBR rubber inner ring maintains elasticity up to 120 °C, making the washers suitable for most oil and hydraulic fluid temperatures.

Are the washers compatible with stainless steel fasteners?

Absolutely. The carbon steel outer ring is designed to work with a variety of metal fasteners, including stainless steel, without causing galvanic corrosion due to the protective coating.

How should the washers be stored to maintain their performance?

Store the washers in a cool, dry place away from direct sunlight. The individual labeled plastic boxes protect the NBR material from ozone exposure and keep the washers organized for quick retrieval.

What warranty does MUZHUPGUZ provide?

We offer a one‑year limited warranty covering material defects and manufacturing errors. Should any issue arise, contact our support team for a replacement or technical assistance.