Midwest Fasteners Zinc Plated Steel Fender Washers

Midwest Fasteners Zinc Plated Steel Fender Washers

Midwest Fasteners Zinc Plated Steel Fender Washers are a steel washer line finished in zinc plating, built to spread clamping load over a wider surface area than a standard flat washer. This family spans washer sizes from 3mm x 9mm up through 14mm x 45mm, giving shops and jobsites a size to match nearly any fastener and substrate combination. Fender washers like these are a shop and jobsite staple wherever a fastener needs extra bearing surface against thin, soft, or easily damaged material - sheet metal, fiberglass, plastic panels, and wood trim all benefit from the larger footprint. The zinc plating provides a layer of corrosion resistance over the bare steel base material, helping these washers hold up in typical indoor and light outdoor use compared to an unplated washer, and every size in the line is held to consistent dimensional tolerances so it seats properly against mating screw and bolt heads without wobble or uneven load distribution.

Key Features

• Size Range: Available in 3mm x 9mm, 4mm x 12mm, 5mm x 15mm, 6mm x 18mm, 8mm x 24mm, 10mm x 30mm, 12mm x 40mm, and 14mm x 45mm to fit a wide range of fastener diameters.
• Type: Fender washer design increases the bearing surface under a fastener head compared to a standard flat washer, helping prevent pull-through on thin or soft materials.
• Material: Manufactured from steel for reliable strength under clamping load.
• Finish: Zinc plated for added corrosion resistance over bare steel in typical indoor and light outdoor shop and jobsite conditions.
• Fit: Seats cleanly beneath screw and bolt heads, distributing load across thin or soft substrates such as sheet metal, fiberglass, plastic panels, and wood panels.
• Consistency: Produced to Midwest Fasteners' standard dimensional specifications for dependable fit across batches and across the full size range.

Technical Specifications

• Refer to manufacturer documentation for complete specifications.

Typical Applications

• Fastening sheet metal panels where extra bearing surface prevents pull-through.
• Securing fiberglass or plastic panels, such as automotive body trim and fenders - the application the "fender washer" name comes from.
• General woodworking and trim installation where a wider washer face reduces surface indentation.
• Maintenance and repair tasks that call for distributing load over a larger area than a standard flat washer provides.

Why Midwest Fasteners?

Midwest Fasteners builds this fender washer line to consistent material and finish standards, so every size in the 3mm x 9mm to 14mm x 45mm range matches the last - same steel base, same zinc plating, same dimensional fit. That consistency matters for contractors and maintenance techs who need a washer that seats correctly every time against mating screw and bolt heads, across every size in the line, without surprises between batches or between orders.