Copper Washers NEO Tools 11-971 — 300 pcs, copper flat sealing washers

Set of 300 copper flat sealing washers from NEO tools designed for use as sealing and insulating elements in mechanical, plumbing and electrical assemblies. These copper washers provide a metal-to-metal contact surface that supports tight joints, electrical grounding points and helps reduce loosening from vibration. Their uniform thickness and smooth edges make them suitable for repeated installation and maintenance tasks where conductive and corrosion-resistant washers are required.

Advantages

Copper construction provides good electrical conductivity and natural resistance to corrosion compared with some base metals. The pack of 300 washers ensures an ample supply for larger maintenance jobs or stock for workshops. Flat shape and consistent dimensions deliver reliable sealing between mating surfaces and help distribute load under fasteners to protect softer parts. Washers are thin and flexible enough to conform to minor surface irregularities while remaining durable for repeated use.

Suitable for

• Sealing and packing in plumbing joints and fittings
• Electrical grounding and bonding points in low-voltage circuits
• Vibration damping and load distribution under bolts and nuts
• General repair, maintenance and installation tasks in workshops

Key specifications

• Material: copper
• Quantity in pack: 300 pieces
• Shape: flat washer
• Primary functions: sealing, electrical conductivity, load distribution
• Typical suitability: mechanical, plumbing and electrical assemblies

How to use

Select a washer size that matches the fastener and the hole diameter to ensure proper seating. Place the copper washer between the mating surfaces or under the fastener head or nut, then tighten the fastener to the torque required for the assembly. For electrical grounding, ensure clean, oxide-free contact surfaces for optimal conductivity. In plumbing joints, verify compatibility with the pipe and fitting materials and tighten to the manufacturer-recommended torque to achieve a reliable seal without deforming the washer excessively.

Usage recommendations

Store washers in a dry location to limit surface oxidation. Avoid using copper washers with materials that may cause galvanic corrosion unless appropriate isolation or antiseize measures are applied. For critical electrical connections, inspect contact surfaces regularly and replace washers that show signs of excessive wear or deformation.