This transitional octagon-shaped Richelieu knob is a perfect fit for classic settings. The knob head is elegantly designed for kitchen and bathroom décors. Please note that the screws included with the products are a standard size of 1 in (25 mm) length, quadrex, pan head. They will fit with most of the popular melamine thicknesses, which range between 5/8 in to 3/4 in (16 mm to 19 mm).