Self drilling screw Top-As
• Blue zinc plated, min. 5 my
• Countersunk head 90°, Ø 7.4 mm
• Milling ribs
• PH2 drive
• Self-tapping screw thread Ø 3.9 mm
• Drill bit 4.5 mm long
• Roller sorted < 1000 ppm
• Reinforcement thickness up to 3.5 mm