Fe Zn 8b _best_: Din 50961

Bolts, nuts, screws, and washers where thicker coatings would clog the threads.

If your supply chain requires full RoHS/REACH compliance, explicitly specify "tCr blue passivation (trivalent)" alongside DIN 50961 Fe Zn 8b. din 50961 fe zn 8b

: The minimum local thickness of the zinc coating, which is 8 micrometers ( ) (approximately 0.00031 inches). Bolts, nuts, screws, and washers where thicker coatings