The S-5-N clamp was designed for application on popular 1" nail strip metal roof profiles. The clamp design minimizes the need to field crimp, engages the female part of the triangular seam, sits straighter on the seam, and eliminates the need to hold the clamp in place while setscrews are tensioned.

For maximum holding strength, setscrews should be tensioned and re-tensioned as the seam material compresses. Clamp setscrew tension should be verified using a calibrated torque wrench between 160 and 180 inch-pounds when used on a 22-gauge steel, and between 130 and 150 inch-pounds for all other metals, 26ga and thinner gauges of steel. Published data regarding holding strength is available