M18 d. 20x56x4 ZINC Washers with outside diameter = 3 x nominal thread diameter DIN 9021
Firma Killich s.r.o. offers rivet washers DIN 9021. The range of rivet washers DIN 9021 includes stainless steel A2, A4, steel, galvanized, polyamide, blackened, nickel-plated.
