Learn more about the importance of using the right type of screws around your roof edging or gutters. You shouldn't need to screw into your roof edging at all. However, if you must, he recommends using a minimum number of nails instead of screws.
Greg also warns against using galvanized metal screws with other metals, as the galvanization process can cause corrosion and suggests using galvanized nails with galvanized metal to avoid this issue.
Bonus Tips:
If possible, avoid screwing into your roof edging altogether.
Use a minimal number of nails instead of screws if necessary.
Match the metal type of your screws to the metal type of your roof edging to prevent corrosion.
Consider alternative methods of attaching roof edging, such as adhesives or clips.
Inspect your roof edging regularly for signs of damage or corrosion.