- Key benefits - Reliable sealing: Copper material provides a tight seal that reduces leaks at threaded joints and fasteners, making these washers suitable for fluid and pressure-bearing connections. - High heat resistance: Copper maintains sealing performance at elevated temperatures better than steel or rubber washers. - Corrosion resistance and conductivity: Copper offers good corrosion resistance and electrical conductivity for use in grounding and electrical connections. - Extended fastener life: The softer copper surface reduces wear on bolts and threads, helping prolong the service life of screws and fittings. - What these copper washers do for you - Prevent leaks on oil drain plugs, fuel fittings, water lines, and hydraulic connections by forming a reliable metal-to-metal seal. - Provide a conductive, corrosion-resistant interface for electrical and grounding connections where a screw or threaded joint carries current. - Withstand higher temperatures than rubber alternatives, maintaining seal integrity in demanding environments. - Key attributes - Material: Solid copper for good thermal stability, electrical conductivity, and corrosion resistance. - Function: Sealing washer and conductive washer for threaded fasteners and fittings. - Compatibility: Designed for use on bolts, screws, plugs and fittings where a metal sealing surface is required; suitable for automotive, marine, household and industrial threaded connections. - Performance: Superior sealing and heat tolerance compared with typical steel or rubber washers; reduces leak risk and wear on mating threads. - Typical applications (examples) 1. Oil drain plug washer for engines and gearboxes — creates a reliable metal seal to prevent oil leakage and protects the drain plug threads. 2. Fuel and hydraulic fittings — used on flared or threaded fluid fittings to maintain leak-free connections under pressure and temperature changes. 3. Electrical grounding and appliance connections — used where the electrical path runs through a screw or terminal, ensuring good conductivity and corrosion resistance in automotive, marine, and household equipment. - Why choose copper washers for these tasks - They combine sealing performance, heat tolerance and electrical conductivity in one component, reducing the need to switch between different washer materials for mechanical and electrical requirements. - Copper’s softer surface helps seat the washer against mating surfaces, improving seal quality without damaging the fastener. Note: These washers are all made from copper and are intended for demanding applications where improved sealing, heat resistance and conductivity are required.