DIN 9021 - Specification for Stainless steel penny repair washers - U-Bolts-R-Us / Graphskill Ltd Blog
M16 Flat Penny Washer (Pack of 10) Large OD Plain Wide Round Metal Alloy Steel Washers for Screws – Zinc Coated Plated Galvanized Heavy Duty Certified Standart ISO7093 M16 (17mm x 50mm) :
A2 Stainless Steel Penny/Repair Washers - M16 x 25mm | Tradefix Direct
Grade 8.8 Steel M2 to M27 Flat Washers Plain Washers 0.5mm to 4mm Thick DIN 125 | eBay