Value Collection KP60811 3/8 in Copper Flat Washer 50 Pack

Product Description

The VALUE COLLECTION KP60811 is a standard flat washer sized for 3/8 inch screws, made from copper with a plain finish. It is used to distribute load across a fastened joint, protect surface finishes, and provide a stable seating surface for bolts and nuts. With an inside diameter of 0.395 inches, an outside diameter of 1 inch, and a thickness of 0.064 inches, this washer meets common dimensional standards for inch-system hardware. Plumbers, HVAC technicians, electricians, and general tradespeople reach for copper washers when corrosion resistance and conductivity matter. This listing covers a package quantity of 50 pieces.

Copper flat washers are commonly used in plumbing, HVAC, and electrical installations where steel hardware would corrode or react with dissimilar metals or treated water. They are appropriate for use with copper pipe fittings, manifolds, valves, and electrical bonding connections. The plain finish means no added coating that could affect conductivity or seal performance. These washers are suited for both residential and light commercial applications where 3/8 inch fasteners are specified.

Key Features

• Copper material provides corrosion resistance and electrical conductivity
• Plain finish with no additional coating for clean metal-to-metal contact
• Inside diameter of 0.395 inches fits standard 3/8 inch screws and bolts
• Outside diameter of 1 inch distributes load across a wider bearing surface
• Thickness of 0.064 inches meets standard flat washer profile
• Sold in a pack of 50 for jobsite and shop stocking

Compatibility

Designed for use with 3/8 inch screws and bolts in inch-system fastener applications. Suitable for copper-compatible assemblies in plumbing, HVAC, and electrical systems where a standard flat washer is required.

Installation Notes

Install using standard hand tools appropriate for the fastener being used. Copper is a soft metal and can deform under excessive torque, so follow the fastener manufacturer's torque guidance for the application. When used in electrical bonding or grounding applications, verify compliance with applicable NEC requirements before finalizing connections. Shut off power, water, or refrigerant supply as appropriate before servicing any system where these washers are being installed or replaced.