Copper Washers Silver 300 pcs, model 10546, size unspecified

Set of 300 Copper Washers by Silver designed for use where the properties of copper—such as corrosion resistance, malleability and electrical and thermal conductivity—are required. These flat copper washers function as mechanical spacers, sealing elements and conductive interfaces in assemblies that need reliable metal-to-metal contact. Supplied in a bulk pack of 300 pieces, the washers are intended for repeated use in installations and repairs across plumbing, automotive and electrical applications.

Advantages

Copper washers provide good corrosion resistance in contact with a variety of metals and form an effective soft sealing surface when compressed. Their malleability allows them to conform to mating parts for improved sealing and load distribution. Copper’s electrical and thermal conductivity makes these washers suitable as conductive shims or grounding elements. The set quantity of 300 ensures a ready supply for multiple repairs or production runs, reducing downtime caused by missing small parts.

Suitable for

• Plumbing connections and fittings where soft metal sealing is required
• Automotive repairs including fuel, oil and coolant fittings that accept copper crush washers
• Electrical connections and grounding points needing conductive washers
• General fastening tasks requiring a deformable washer to distribute load

Key specifications

• Material: Copper
• Form: Flat washer
• Quantity: 300 pieces per pack
• Typical properties: malleable, conductive (electrical and thermal), corrosion-resistant relative to many common metals

How to use

Select a copper washer with the appropriate inner diameter to fit the bolt, stud or fitting used in your assembly. Place the washer between the mating surfaces so that it sits flat and concentric. Tighten the fastener to the specified torque for the application; the washer will deform slightly to create a tight seal and spread the load. For conductive or grounding uses, ensure clean contact surfaces free of heavy oxidation or coatings to maintain conductivity. Replace washers if they show excessive deformation or signs of corrosion after removal.

Usage recommendations

Store the washers in a dry environment to limit surface oxidation. For sealing applications in fluid systems, confirm compatibility with the fluid and materials present. When precise sealing or torque characteristics are critical, use the washer size and specification recommended by the equipment manufacturer.