The S-5-U clamp is by far most popular and most versatile clamp. S-5-U clamp fits about 85% of the standing seam profiles manufactured in North America-including most structural and architectural profiles. S-5-U clamp can be used on vertically oriented seams and, by rotating the clamp 90 degrees, it can also be used on most horizontal 2" seam profiles. Its generous dimensioning, simple design, and multiple hole orientations are what make the S-5-U clamp so versatile for use with the S-5! snow retention products, such as ColorGard, as well as with other heavy-duty applications.