ide bar - 1/8.
slotted perforated sheets. The specifications for the required hole dimensions are: slot thickness - 0.24 inches(6.1mm), slot length - 2 inches(50.8mm) with small spacing between each slot (roughly 0.5 inches or 12mm) for a standard 10000mm x 2500mm sheet of plain steel steel or the cheapest material you have. All tolerances are to have 0.005 inches(abou .13mm).
36x120 carbon steel sheet perforated with 1/4x 2 slotted holes, in straight lines. Hole pattern can have rounded or squa