Designed for a classic style, this acrylic knob with a detachable metal back plate will add vintage charm to kitchen or bathroom cabinets. 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).