Problem while using mates

Hi guys

I have a bit of a problem which is quite annoying. Whenever I am mating components Solidworks is allowing me to select edges that are hidden from view by faces, so mating 2 faces together has become irritating. An example is mating a bracket to a SHS and having the bolts on the other side, which are out of view being selected. The only way around this is to zoom right into the face to select it instead of what is behind it.

I have looked throught the options for Solidworks and tried to find an answer on the forums but just can't seem to locate the problem.

Do you guys have any ideas?

Thank you

Andrew

SolidworksAssemblies