The M4 nut with an extra-flat head Nickel plated has dimensions of 15 mm long with an average length of 9 mm from the center to the bottom end. The head of this piece is 10 mm in diameter by 1.2 mm thick. the head, which allows it to be an attachment that is flush with the surface to be installed. The diameter of the hole where the screw is attached is 5 mm. This part is made of strong steel with a nickel finish for corrosion protection. It is a product that is used together with the M4 screw with a nickel-plated extra-flat head. The packaging of the M4 nuts contains 2000 units.