The S-5-R465 was created specifically to fit the Zambelli RIB-ROOF 465, McElroy Metal s Mirage II, Rib Roof Metal Systems Rib Roof, and similar roof profiles. The S-5-R465 replaces the S-5-R, proving to have more than three times the holding strength. The clamps are uniquely designed with opposing setscrews to maximize holding strength.
The S-5-R465 clamp comes complete with four  3/8-24 x 0.50″ setscrews and one  M8-1.25 x 16mm Hex Flange Bolt. All hardware is stainless steel.
Installing solar, satellite dishes, or other less demanding roof mount products? The S-5-R465 mini clamp may be a better choice.