Magnetisation Grade:         N38
Material: Neodymium-Iron-Boron (NdFeB), Neodymium and Steel 
Magnet ID:              NPE-48-N38-Zn
Plating / Coating: Zinc, Zink   
Shape: with Eyelet    
Pot Magnet Size: 
Pot diameter (D): 48 mm
Neck diameter (d): 12 mm
Pot height (H1): 11 mm
Total height without Eyelet (H2): 12 mm
Total height with Eyelet (H3):  55 mm
Thread (M): M6
Tolerance:         ±0.1 mm
Magnetisation Direction:   Axial      
Residual Magnetic Flux Density (Br): 12.2-12.6 KGs (T):  1.22-1.26 T 
Energy Density (BH)max:              35-39 MGOe   279-310 KJ/m³   
Coercivity Force (Hcb):              ≥10.8 KOe  ≥860 KA/m   
Intrinsic Coercivity Force (Hcj):    ≥12 KOe    ≥955 KA/m   
Maximum Operation Temperature: 80 °C 
Delivery Time:           14-35 days   
Measurements:

Attach a Eyelet on the round base magnet.
1. A powerful magnetic assembly with unlimited office uses.
2. Perfect for hanging tools, keys, utensils and more from any ferrous metal surface.
3. lifts up to 20 pounds in a vertical test
4. includes a special liner to prevent surface scratches.
5. Round base dia. 2"
We have many magnetic hook of other size for your different need.