Value Collection BDNA-32578 Fender Flat Washer 5/16 in

Product Description

The VALUE COLLECTION BDNA-32578 is a zinc-plated steel fender flat washer sized for 5/16 inch screws. Fender washers feature a larger outside diameter relative to the inside diameter, distributing clamping load across a wider surface area and reducing the risk of pull-through on sheet metal, thin panels, and soft substrates. This washer measures 11/32 inches inner diameter, 1-1/2 inches outer diameter, and 0.0625 inches thick. The zinc plating provides baseline corrosion resistance for general indoor and light outdoor applications. These are sold individually but require a minimum order of 100 units.

This washer is used across a broad range of trade and industrial applications including HVAC sheet metal work, electrical panel mounting, plumbing fixture installation, and general mechanical assembly. The large OD makes it well suited for use with oversized holes or slotted openings where a standard flat washer would not provide adequate bearing surface. Electricians, plumbers, HVAC technicians, and general maintenance trades stock these as consumable hardware for everyday fastening tasks.

Key Features

• Large 1-1/2 inch OD distributes load over a wider surface area than standard flat washers
• 11/32 inch ID fits 5/16 inch screw or bolt shanks
• 0.0625 inch thickness provides rigid bearing surface without excessive stack height
• Zinc-plated steel construction offers corrosion resistance for general service environments
• Inch measurement system; compatible with standard fractional fastener sizing

Compatibility

Designed for use with 5/16 inch screws and bolts in standard inch-measurement fastener applications across HVAC, plumbing, electrical, and general mechanical assembly.

Installation Notes

Install using standard hand tools appropriate for the fastener type. Ensure the washer is seated flat against the mating surface before applying torque to the fastener. For electrical enclosure work, follow applicable NEC guidelines regarding hardware materials and grounding continuity. Inspect zinc plating for damage before use in moisture-exposed locations.