BN 20369 | ISO 7089-DIN 125 AFlat washers without chamfer, for screws up to property class 10.9Steel, Zinc flake coated ISO 10683/flZnL/nc/480h/C
BN 20735 | ISO 7093-1-~DIN 9021Flat washers without chamfer, large series, for screws up to property class 8.8Steel, Zinc flake coated ISO 10683/flZnL/nc/480h/C