R0M79CH – CRL Roman Series Fixed Panel U-Clamps are used to secure fixed panels of glass to walls, floors, and ceilings. The rounded corners give the clamp a “softer” design and creates a classy look. One mounting screw per clamp is included. They perform the same function as our Standard Fixed Panel U-Clamps. They are especially recommended for 1/2″ (12 mm) thick glass installations where a hole drilling measurement of 1-1/2 times the glass thickness (from the edge of the glass to the closest edge of the hole) is required.