Extra Heavy Duty Screw Omg Ø6.7mm Approved Steel Roof Screw (FM-Approval) Flat Head with PHP3 bit receptacle and reduced drill point. Coating: CR-10 30 cycles of the Kesternich test according to DIN50018 S2.0L din 50018 s
Minimum insertion depth into the substrate Wood: 25 mm Steel/Aluminum: 20 mm (up to 2 x 1.25 mm thickness) Concrete: 25 mm (Ø 6.0 mm, depending on concrete quality) Gypsum concrete: 60 mm Bims concrete: 20 mm (Ø 5.0 mm) Durisol mevriet: 20 mm (Ø 5.0 / Ø 5.5 mm)