Harbor Freight Magnet Bar Mount

Leave it to Harbor Freight to sell a magnet bar that has oddly spaced mounting holes. The spacing on the mounting holes almost fit in the Honeycomb Storage Wall (HSW). Had to offset the M5 inserts by 5mm to get it to fit. Used some M5x12mm bolts to secure. Spanned 3 honeycomb segments to provide radial stability as items are pulled off the magnet in any direction. Added a variant for Multiboard.