Manufacturer’s reference: abrc4219 – Pack of 1000 pcs. The indicated price is per pack. din-7504-n HC. Screw Pan Head color-head and footprint Square Features & # x2022; Zinc plated finish (Code abrc) & # x2022; with grooves in the bottom part of the head that make antigiro. & # x2022; Stainless Steel A2 version (Code abrca2) For use exclusively in aluminium (not produces galvanic corrosion per pair). Do not use the screw in stainless steel for drilling steel, it will burn the tip by lack of hardness tab Technical Features Material Coated Tip footprint head installation work