These versatile, thin countersunk magnets from First4magnets are ideal for creating discreet magnetic cupboard door catches or for holding removable bath panels in place, plus many other uses. Although just 3mm thick, each magnet is capable of supporting 4.5kg in a vertical position or 0.9kg in a shear position when in direct contact with another magnet or a steel surface. They are available with either pole on the magnetic face, so two of these can be used on opposing surfaces to attract. For the perfect finish, countersink these magnets into a wooden surface and screw in place using a stainless steel screw. IDEAL FOR CREATIVE APPLICATIONS. Countersunk magnets are ideal for creating discreet magnetic cupboard door catches or for holding removable bath panels in place plus many other uses. USEFUL FOR MANUFACTURING & ENGINEERING. Neodymium magnets have many uses in engineering and manufacturing where maximum strength is required. RESISTANT TO DEMAGNETISATION. Excellent resistance to demagnetisation. CORROSION-RESISTANT PREMIUM COATING. Coated with three layers of nickel, copper and nickel to reduce corrosion and provide a smooth finish. RARE EARTH MAGNET. Each magnet can support a steel weight of up to 4.5kg vertically from the magnetic face when in flush contact with a mild steel surface. SECURELY FIX MAGNET IN PLACE. Can be fixed in place with 3mm diameter countersunk screws. SPECIFICATIONS. 20mm diameter x 3mm thick with a 3.6mm diameter countersunk hole for fixing.