p1044 unistrut

p1044 unistrut, as can be seen in the illustration, C Bracket with 4 holes, used with Unistrut or similar channel systems.

C brackets also combine two channel pieces in order to give the illusion of stacking. As a result, the four holes help firmly bolt two channels together.

It is most recommended for building by combining two channels to increase the load capacity and install heavy HVAC system components.