Screwing: 15%. Titanium Screw M4 x 15-35 Conical DIN 912 Grade 5 Gold. din 912 - ISO 4762. Titan Screw M6 x 40 Conical DIN 912 Grade 5 Purple. Titan Screw M10 x 20-25 Conical DIN 912 Grade 5 Gold. Titan Screw M10 x 20-130 mm Conical DIN 912 Grade 5 Fine Thread 1.25.