• Steel
• galvanized
• nominal diameter 4,8mm
• length 32mm
• head diameter 9,5mm
• head height 3,85mm
• drill point length 4,5mm
• Internal drive AW25
• Exact drill diameter for every screw joint
• Minimization of thread tolerance
• Always an optimal connection
• Avoidance of assembly errors
• AW drive system:
• Better torque transmission
• Longer service life
• Optimum centring
• Better assembly performance due to fatigue-free screwing, as the contact pressure required for torque transmission is significantly lower
• Largest possible contact surface of the bit in the screw drive
• The even distribution of force avoids damage to the surface protection layer and thus ensures greater corrosion resistance

Notes:

• Contact pressure during processing approx. 100 N. If necessary, screw with depth stop.
• Ø 4.2 and 4.8 mm
• General technical approval Z-14.1-4
• European Technical Approval ETA-10/0184
• Galvanized self-drilling screws are only to be used where wetting is not to be expected. For fasteners approved by the building authorities, it is essential to observe the approval, in particular Part 2 "Special provisions".