Large OD Flat Washer – A4 Stainless Steel (DIN 9021) | Large Diameter Washers for Increased Load Distribution

These DIN 9021 Large OD Flat Washers are manufactured from A4 (316) stainless steel, providing excellent corrosion resistance and a larger outside diameter than standard flat washers.

Often referred to as penny washers or mudguard washers, they are designed to spread the clamping load over a greater surface area, making them ideal for thin materials, sheet metal, plastics, timber and composite panels.

Manufactured from marine-grade 316 stainless steel, they are suitable for marine, engineering, fabrication, construction and outdoor applications where superior corrosion resistance is required.

Why We Stock It

• Manufactured to DIN 9021
• Marine-grade A4 (316) stainless steel
• Large outside diameter for improved load distribution
• Excellent corrosion resistance
• Ideal for thin materials and oversized holes
• Suitable for indoor and outdoor applications
• Available individually with quantity discounts

Product Specifications

Ideal For

• Sheet metal fabrication
• Marine applications
• Timber construction
• Automotive repairs
• Engineering
• Fabrication
• Signage
• General workshop use

Buy Only What You Need

Whether you're replacing a single washer or purchasing for a larger project, Shores NZ Fabrication makes it easy to buy exactly what you need with no unnecessary minimum order quantities.