What type of screw do I use to fix a second layer of boards?

|   Exterior

For steel frameworks, 0.6mm ≤ x ≤ 1.0mm, we recommend AQUAPANEL® Maxi Screw SN39.

For steel frameworks, 1.0mm < x ≤ 2.0mm, we recommend AQUAPANEL® Maxi Screw SB39.

For timber frameworks, we recommend AQUAPANEL® Maxi Screw SN55.



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