Screw hole magnet head magnet strong round strong magnet N40 20x5mm-5mm

[product name] : nd-fe-b permanent magnet is also known as magnetic steel, permanent magnet, strong magnet and rare earth permanent magnet

[size of product] : D20*5MM [diameter 20 mm * thickness 5 mm] tolerance +-0.1mm [mm]

[specifications of inner holes] : 10MM large holes and 5MM small holes 

[product material] : sintered ndfeb

Vertical tension: 12 kilograms

Weight: 11.93 grams

Magnetic size: 4500 gauss

[magnetic coating] : three-layer treatment of nickel, copper and nickel, good rust resistance and corrosion resistance. Better than those with single-layer nickel plating.

Magnetization direction: thickness magnetization

[working temperature] : maximum 80 degrees Celsius

One piece of magnet

[matters needing attention] : be careful of fragile and wound. Keep it at dry room temperature