Transitional square knob by Richelieu. Elegant shape and discreet face detail make this the right product for your kitchen or bathroom. 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).