The Blizzard Heavy Duty II Q aluminum 2-pipe clamp-to-seam snow fence system.  Brackets come with two attached S-5!® Q standard clamps for standing seam metal panels.  Effective for snow retention in areas with high snow loads.

The S-5!® Q Clamp ("Q" represents the shape of the clamp) allows for the attachment of snow guards and other heavy-duty applications to metal roof panels featuring large "bulb" seam configurations up to 1.14" (29 mm).

The clamp features a two-piece design that makes it easy to install anywhere along the seam.

The S-5!® Q Clamp also fits smaller, round "bulb-shaped" profiles with diameters of 0.75" (19 mm) or less if the seam is not properly closed. 

The S-5!® standing-seam clamps are designed to affix directly to the vertical seams of the metal panels without penetrating the seam by tightening the included stainless steel setscrews.