Square Opening Wire Mesh Square opening wire mesh also called square wire mesh, weaved of good quality electro galvanized wire, hot dipped galvanized wire,stainless steel wire, copper wire,brass wire, with the square opening holes, precise construction, uniform mesh, excellent corrosion and rust resistance, used for window screening, safety guards on machinery enclosures, filtering liquid and gas, sieving grain, also widely used in industry, agriculture, building, house fencing. The following specifications are listed for your reference. Mesh/inch Wire Dia. (mm) Aperture (mm) 2 1.60 11.10 4 1.20 5.15 5 1.00 4.08 6 0.80 3.43