BN 20236 | DIN 931-ISO 4014Hex head bolts partially threadedSteel, zinc plated with thick layer passivation
BN 20543 | DIN 931-ISO 4014Hex head bolts partially threadedSteel, zinc plated blue with CresaCoat® C 313 Silver
BN 21201 | DIN 931-ISO 4014Hex head bolts partially threadedSteel, Zinc flake coated ISO 10683/flZnL/nc/480h/C (µ=0.12-0.18)