9 Sizes Metric Copper Crush Washers Assortment maierke M5-M14 188pcs

Description

Product Overview

The maierke 9‑size metric copper crush washer kit is a comprehensive assortment designed for professionals who demand reliability and precision in sealing applications. Each washer is forged from 100 % high‑purity copper, delivering excellent electrical conductivity, superior corrosion resistance, and outstanding thermal performance. The kit includes 188 washers distributed across nine standard metric sizes—from M5 up to M14—providing a versatile solution for a wide range of fastening and sealing tasks. With a maximum working pressure of 16 MPa and a temperature tolerance of up to 350 °C, these washers maintain their shape and sealing integrity even under extreme operating conditions, making them ideal for high‑voltage electrical connections, automotive brake systems, and heavy‑duty industrial flange assemblies.

Every washer is precision‑machined to exact dimensions, ensuring a consistent crush height that creates a uniform seal without over‑compressing the mating surfaces. The transparent plastic storage box holds all 188 pieces in clearly labeled compartments, allowing quick identification and easy retrieval of the required size. This organized packaging reduces downtime on the shop floor and minimizes the risk of using an incorrect washer, which can lead to leaks or equipment failure. The kit’s compact dimensions—5 × 2.56 × 0.75 inches—and lightweight design (4.16 oz) make it convenient to store in toolboxes, workbenches, or inventory shelves.

Usage

These copper crush washers excel in environments where a dependable seal is critical. In electrical installations, they provide a low‑resistance path for current while preventing moisture ingress, which is essential for maintaining system reliability in outdoor or industrial settings. Automotive technicians rely on these washers to secure brake caliper pins and ABS sensor connections, where the combination of high pressure and temperature resistance ensures safe vehicle operation. In industrial machinery, the washers are used to seal hydraulic and pneumatic fittings, protecting against fluid leaks that could cause downtime or safety hazards.

The versatility of the kit also extends to household and commercial appliance repairs. Whether you are sealing a washing machine pump, a dishwasher inlet, or a refrigeration unit, the range of sizes ensures a proper fit for most standard thread diameters. The copper material’s inherent antimicrobial properties add an extra layer of protection in applications involving water or food processing, reducing the risk of bacterial growth at the seal interface. Users appreciate the ease of installation: the washers compress uniformly when tightened, eliminating the need for additional sealing compounds or gaskets.

Why Choose Us

Choosing maierke means selecting a brand with a reputation for quality and durability. Each washer undergoes rigorous testing to verify compliance with industry standards for pressure, temperature, and corrosion resistance. The manufacturing process incorporates advanced forging techniques that eliminate internal voids and ensure a homogeneous grain structure, resulting in a product that performs consistently over its service life. Our commitment to precision is reflected in the tight tolerance levels—typically within ±0.02 mm—providing a reliable crush height that engineers can count on for critical sealing applications.

Beyond product excellence, maierke offers comprehensive customer support, including technical assistance, detailed installation guides, and a responsive warranty program. Should you encounter any issues, our knowledgeable service team is available to troubleshoot and provide solutions tailored to your specific application. We also prioritize sustainability; the copper used in our washers is sourced from responsibly managed mines, and the packaging is recyclable, aligning with environmentally conscious practices. By investing in this kit, you gain not only a high‑performance component but also the peace of mind that comes from partnering with a trusted industry leader.

Key Features

• Premium 100 % copper construction delivers excellent conductivity and long‑term corrosion resistance.
• Wide size range (M5‑M14) with 188 pieces ensures you have the right washer for any standard metric application.
• Engineered to withstand up to 16 MPa pressure and 350 °C temperature, providing reliable sealing under extreme conditions.
• Transparent, compartmentalized storage box simplifies inventory management and speeds up part selection on the job.
• Dedicated customer support and warranty coverage give you confidence and assistance throughout the product lifecycle.

FAQ

What makes copper crush washers better than steel or rubber alternatives?

Copper offers superior electrical conductivity, higher temperature tolerance, and excellent corrosion resistance compared to steel or rubber. This means a more reliable seal in demanding environments, especially where heat or moisture are present.

Can these washers be used for high‑pressure hydraulic systems?

Yes. The washers are rated for a maximum working pressure of 16 MPa, making them suitable for many hydraulic and pneumatic sealing applications where a tight, leak‑free connection is essential.

How do I determine which size washer I need for a specific bolt?

Identify the bolt’s nominal diameter and select the corresponding washer size from the kit (e.g., M5 for a 5 mm bolt, M8 for an 8 mm bolt). The packaging includes a size chart that matches each washer dimension to standard bolt sizes.

Are the washers reusable after removal?

While copper washers can be reused if they remain undamaged, repeated crushing can alter their thickness and compromise sealing performance. For critical applications, it is recommended to replace the washer each time it is removed.

What warranty does maierke provide for this product?

maierke offers a one‑year limited warranty covering manufacturing defects. If you encounter any issues, contact our support team with the product details, and we will arrange a replacement or provide a refund according to the warranty terms.