Our Actobotics® Aluminum Beams make it easy to create custom links and connectors. They are extremely rigid and strong, and come in a variety of lengths. The beams have thru-holes that are spaced to be compatible with the 0.770" hole pattern found throughout the Actobotics& product line. Length is calculated from center hole on one end, to center hole on the other end. Beams are 1/4” (0.250”) thick.