The Mild Steel Hexagonal Shape Bar is a six-sided piece of steel bar stock. It is measured by its width across the flats, not from corner to corner. It is a highly versatile engineering material. Steel hexagonal bar is a highly versatile engineering material. Typical applications include fasteners including bolts and nuts and in the production of repetitively turned parts. It is precisely shaped for items or machines that require accurate pieces. Mild Steel Hexagonal Shape Bar is very useful.