To screw, it is a piece of steel with a zinc-plated finish that protects it from rust and corrosion. It is fixed on a surface where a screw will pass, giving it an optimal hole to be screwed in safely. This circular piece has a diameter at its head of 25 mm while its hole is 10 mm. The total height is 12.3 mm and the thickness of its head is 1.3 mm. This model has a thread for M8 screws so you must take this into account. To fix this piece, screws are used and three holes have a diameter of 3.5 mm, finally, the packaging is 1250 units.