50mmx5mm N35 Strong Neodymium Rare Earth Countersunk Ring Magnet with Countersunk Hole for #6 Screw (2 Pack)

• Dimensions: 50mm dia. x 5mm thick with countersunk hole 6mm
• Magnetic Face: 50mm diameter
• Magnets Type: Permanent
• Material: Sintered NdFeB, Neodymium
• Grade: N35
• Plating /Coating: Ni-Cu-Ni (Nickel-Plated)
• Magnetization Direction: Axial(Poles on Flat Ends)
• Weight: 73.5 g/piece
• Hole type: single countersunk hole
• Max Operating Temp: 176°F (80°C)
• Quantity: 2x countersunk magnets
• Pull Force:approx. 2.73 kg

strong neodymium countersunk disc magnets are best for securely attaching magnets on to both magnetic and non-magnetic surfaces including wood, plastic, brass, copper, rubber and aluminum.

The countersunk hole enables a standard screw to be flush mounted into the magnet to securely fasten it into doors, cabinets, chests, toolboxes, displays, signs, panels, art frames and other hidden closure or attachment applications. Closures can involve a pair of magnets with the countersunk holes on opposing poles or one magnet and a steel disc.

Strong countersunk ring magnets sized specifically for flat-head screws. The north pole is on the side of the magnet with the large hole, where the head of the screw would be.

These countersunk rings can be used for a wide range of applications including door closures and tool hangers.

Neodymium (chemical symbol Nd) is element 60 on the periodic table. It is a rare earth metal and forms one of the Lanthanides series. When added to Iron (Fe) and Boron (B) (chemical formula Nd14Fe21B) the resultant magnets are the strongest magnets currently available. Neodymium magnets are sometimes known as Neo, Neod or NIB magnets.
Neodymium magnet are usually coated Nickel-Copper-Nickel plating to prevent the iron from rusting.
Neodymium block magnet was made of NdFeB, have strong magnetic performances and appearance does not rust, usually placed in room temperature, the maximum operating temperature is 80 ° C , and it never will demagnetization.