12mm REX™ Shaft (Aluminum, 43mm Length)

The 43mm length Aluminum REX Shaft can be used to add support to 1120 Series U-Channel.  This length matches the 43mm inside width of the channel so that when you fasten the shaft in with a screw from each side, it will tie the sides together.  It can also be used between two plates or pieces of 1121 Series Low-Side U-Channel. Given the large footprint the REX shaft has, a few of these working together will create an extremely strong connection between the components.