Au-ve-co Products 20454 M12 Copper Standard Flat Washer

Product Description

The AU-VE-CO PRODUCTS 20454 is a metric standard flat washer made from copper, sized for M12 screws. It measures 14mm inside diameter, 20mm outside diameter, and 1.5mm thick. Flat washers in this configuration distribute load across the fastener bearing surface and help prevent galvanic interaction between fasteners and mating materials in plumbing, HVAC, and mechanical assemblies. Copper construction offers natural corrosion resistance and is well-suited for wet environments and applications where steel contamination is a concern. Installers working on refrigeration piping, plumbing rough-in, and equipment mounting will find this washer fits standard M12 fastener hardware.

This washer is used in metric fastener applications where a standard flat washer profile is required. Typical installations include equipment mounting, pipe flange connections, and mechanical assemblies in residential and light commercial systems. The copper material makes it appropriate for plumbing and HVAC applications where non-ferrous hardware is preferred. It conforms to metric dimensional standards for M12 screw sizes.

Key Features

• Copper construction resists corrosion in wet and high-humidity environments
• Standard flat washer profile for M12 metric screws
• 14mm inside diameter fits M12 fasteners with controlled clearance
• 20mm outside diameter distributes clamping load across the bearing surface
• 1.5mm thickness provides consistent seating without adding excessive stack height
• Non-ferrous material reduces risk of galvanic corrosion in mixed-metal assemblies

Compatibility

Designed as a standard metric flat washer for use with M12 fasteners in plumbing, HVAC, and mechanical assembly applications where copper hardware is specified.

Installation Notes

Installation is performed by licensed plumbers, HVAC technicians, or mechanical contractors depending on the application. De-energize electrical systems and shut off fluid supply before working on any assembly requiring fastener replacement or adjustment. Use appropriate torque procedures per the equipment manufacturer guidelines and applicable codes such as the IPC or IFGC. Copper is a softer material than steel; avoid over-torquing fasteners as this may deform the washer and reduce load distribution effectiveness.