Flat countersunk head selfdrilling wood for hardwood steel durocoat S 4x35

Steel is an iron-carbon alloy with a maximum carbon content of 2% by mass. The steels achieve their intended physical and mechanical properties through various hardening, annealing and tempering processes. It is also possible to harden the edge zone by surface hardening, case hardening or nitriding. Well-known steel grades are structural steels, free-machining steels, case-hardening steels, nitriding steels, tempering steels, tool steels and stainless steels.

The special surface stands for high corrosion resistance and guarantees long-lasting protection against corrosive environmental influences. Durocoat® 480 corresponds to a corrosion resistance of 480 hours in the salt spray test according to DIN EN ISO 9227.