A photovoltaic module mounting system may include a module clamp that includes a central section that includes two first walls connected at the top of each first wall by a first connecting surface. The central section may have a first cross-sectional height corresponding to a height of each of the first walls and a first width corresponding to a distance between the two first walls. The module clamp may have ends that include two second walls connected at the top of each second wall by a second connecting surface in which each of the ends has a second cross-sectional height that is shorter than the first cross-sectional height and a second width that is wider than the first width. The central section may be connected to each of the ends such that the first connecting surface and the second connecting surface are bridged and form a bowtie shape.