220Pcs M4 Fiber Flat Washers Plain Washer 4mm ID 12mm OD 1mm Thick]

Specifications

Description:Material - These round flat washers are made of red steel paper material, which is insulated and anti-corrosion, durable and has good wear resistance. They have good anti-rust and anti-oxidation properties to ensure long-term indoor and outdoor applications.Design - Flat washers' flat design and precise dimensions ensure a snug fit and installs easily under bolt or nut heads. Its stable structure prevents screws and bolts from loosening over time. Playing a vital role in reducing friction between fasteners, preventing leakage, isolating components, and resisting loosening. Good Insulation - These flat spacers have good insulation properties, which can effectively isolate conductive materials and prevent current leakage or short circuit.

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