Go clean and contemporary with our white line up of hardware. Contemporary round ceramic knob. This product will provide a beautiful complement to your kitchen or bathroom cabinetry. 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).