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The HILLMAN FASTENERS 7830502 is a 100-pack of 1/4 inch stainless steel commercial flat washers. Flat washers distribute fastener load across a surface, reducing the risk of pull-through and protecting the material beneath the bolt or nut head. These are made from stainless steel, making them suitable for wet or corrosive environments where carbon steel hardware would degrade. Plumbers, HVAC techs, electricians, and general trade contractors reach for stainless flat washers when assembling equipment panels, pipe supports, conduit hangers, and mechanical connections that face moisture or chemical exposure.
These 1/4 inch flat washers are appropriate for residential and commercial applications where standard SAE or commercial-series washers are called for. Common use cases include pipe hanger installations, electrical enclosure assembly, HVAC equipment mounting, and general mechanical fastening tasks. The 100-piece pack suits service vans and job-site use where a steady supply of hardware is needed for multiple connections in a single visit.
Designed as a standard commercial flat washer for use with 1/4 inch bolts, screws, and nuts across trade applications.
Flat washers are installed by hand before fastener tightening. No special tools are required beyond the wrench or driver used for the primary fastener. Always ensure the washer inner diameter matches the fastener shank diameter before assembly. When installing in pressurized or structural applications, follow applicable mechanical or plumbing codes for fastener torque and hardware grade requirements.
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