The 41×41 BACK ON BACK PLAIN HDG is a 1000 series 41x41mm strut channel, the standard heavy-duty profile used to build support frames for pipework, ductwork, cable tray and mechanical plant. Manufactured in hot-dip galvanised steel, it accepts standard channel nuts and fittings, giving a strong, adjustable support system that can be reconfigured without welding or drilling.