BN 20229 | ~NFE 25-513 M-~DIN 126Flat washers without chamfer series M (medium)Steel, zinc plated with thick layer passivation
BN 82416 | ~NFE 25-513 M-~DIN 126Flat washers without chamfer series M (medium)Steel, Zinc flake coated ISO 10683/flZnL/nc/480h/C (µ=0.12-0.18)
BN 84521 | ~NFE 25-513 M-~DIN 126Flat washers without chamfer series M (medium)Steel, zinc plated blue
BN 84522 | ~NFE 25-513 M-~DIN 126Flat washers without chamfer series M (medium)Steel, zinc plated yellow