Stylish and practical, this contemporary antimicrobial copper pull is a welcome upgrade to any space. In addition to decorating your house in the latest style, it continuously cleans frequently touched surfaces. The Richelieu products containing Antimicrobial Copper Alloys Group I to IV will have a surface providing continuous sanitizing action, as cited by Heath Canada's Pest Management Regulatory Agency (PMRA), under the authority of the Pest Control Products Act and Regulations. Registration Decision RD2014-15, Metallic Copper. 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).