Detail & Specs
Metric Black Stainless Steel Fender Washer
Fender washers have larger outer diameters than general purpose flat washers. DIN 9021 Fender washers have an outer diameter that measures 3X the inner diameter.
Use on oversized holes to distribute the load of the fastener over a wider area. Washers also provide a smooth bearing surface against the work surface, protecting it and preventing damage.
Finish: Black Oxide
Attractive matte black finish
Abrasion resistant, does not peel, chip or rub off
Reduces friction, prevents galling
Does not change the strength of the stainless steel
Practically no dimensional change to base fastener
The black oxide coating per MIL-DTL-13924, Class 4 on 300 series corrosion resistant steel will show no signs of corrosion after 96 hours of exposure in a 5% salt spray (fog) test in accordance with ASTM B117.
Stainless steel washers are commonly used in damp environments. They are popular across a wide range of industries: automotive, agriculture, architectural, sanitation, food processing, clean energy, etc.