Smooth, burr-free surface with high hardness for reliable, long-lasting fastening Designed to sit under nut heads and bolt heads to evenly distribute clamping pressure and reduce point loading Helps prevent nuts from loosening on uneven or irregular surfaces by improving contact stability Suitable for both indoor and outdoor use thanks to durable construction Intended for electrical connections on household and commercial appliances and for industrial products where screw stability and pressure dispersion are required Compatible with standard nuts and bolts and other threaded fasteners (fits under bolt heads and nut faces) Performance benefits: reduces stress on mounted parts, minimizes fastener loosening, and protects mating surfaces from damage Note: actual item color may vary slightly from website images due to monitor and lighting differences Typical applications Household appliances: securing terminal connections and internal fastenings to keep electrical contacts tight and stable Commercial equipment: fastening components in HVAC units, kitchen equipment, or service panels where vibration or uneven surfaces are present Industrial installations: use in control panels, junction boxes, and machinery assemblies to disperse pressure and reduce the risk of loosening If you need washers for reliable pressure distribution and improved fastener stability in electrical and mechanical assemblies, these gaskets provide a durable, hard-surfaced solution that performs indoors or outdoors.