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The AU-VE-CO PRODUCTS 23930 is a metric standard flat washer designed for use with M18 fasteners. Machined from aluminum, it measures 20mm inside diameter, 26mm outside diameter, and 1.5mm thick. Flat washers distribute clamp load, reduce surface damage under bolt heads or nuts, and help prevent fastener loosening in assemblies subject to vibration or movement. The aluminum construction keeps weight low and resists corrosion in environments where steel fasteners are not ideal. This washer is a straightforward hardware component handled by mechanical contractors, plumbers, electricians, and general tradespeople whenever metric fastener assemblies call for load-spreading hardware.
Standard flat washers of this type appear across a wide range of trade and light industrial applications. The M18 metric sizing fits common metric bolt and screw assemblies used in HVAC equipment mounting, pipe support systems, electrical enclosure hardware, and general mechanical assembly. The aluminum material makes this washer suitable for applications where weight savings matter or where galvanic compatibility with aluminum fasteners or aluminum structural members is required. This washer ships individually but is sold with a minimum order quantity of 50 pieces, making it appropriate for stocking in a service van or shop inventory.
Designed as a standard metric flat washer for use with M18 screws and bolts in metric fastener assemblies.
Install this washer between the fastener head or nut and the mating surface before torquing the assembly. Ensure the inside diameter seats cleanly over the fastener shank without binding. When combining aluminum washers with dissimilar metals, consider galvanic compatibility to avoid accelerated corrosion in wet or outdoor environments. No special tools are required for installation beyond standard hand or power fastening equipment.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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