Mack self-drilling screws 25 x 6,3 mm – galvanised. Self-drilling screw with hexagon head for fixing in metal and aluminium; point and thread for driving without pre-drilling. KEY POINTS

SPECIFICATIONS

NOTE

Check the thickness and composition of your material before use.

Check whether matching washers or seals are needed; these are not stated as included.

Use a suitable drill or spanner and watch the torque to prevent damage to the material or screw.