The S-5-R465 (“R” stands for Rib-Roof) is specially designed for the Zambelli RIB-ROOF 465, McElroy Metal’s Mirage II, Rib Roof Metal Systems’ Rib Roof, DimonDek® 400, Steel & Tube Paneldek 400 and similar roof profiles. Clamp utilizes two pairs of opposing setscrews to engage seam material.