Fender washers (aka penny washers) are similar in shape to your standard flat washer, but has a much larger outside diameter and is generally a bit thicker too. With this design, a fender washer can be placed under the head of a bolt or nut to help distribute forces applied when tightening.
Metric Fender Washer - Stainless Steel DIN 9021, 18-8 / A2
Sale priceFrom $0.57
Marine Grade Stainless Steel Fender Washers, A4 (316) - Metric DIN 9021
Sale priceFrom $0.66
Metric Fender Washer - Zinc Plated Steel DIN 9021, Grade A
Sale priceFrom $0.59
Titanium Metric Fender Washers, DIN 9021B
Sale priceFrom $1.90