Magnetisation Grade:         N38
Material: Neodymium-Iron-Boron (NdFeB), Neodymium and Steel 
Magnet ID:              NPE-25-N38-Zn
Plating / Coating: Zinc-plated (Zn)     
Shape: with Eyelet    
Pot Magnet Size: 
Pot diameter (D): 25 mm
Neck diameter (d): 7.5 mm
Pot height (H1): 7.5 mm
Total height without Eyelet (H2): 15 mm
Total height with Eyelet (H3):  37 mm
Thread (M): M4
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:

Pot magnet is one of the most efficient designs for gripping and holding. It consists of magnet material enclosed in a metal pot, while the active magnet face is not enclosed.
Pot magnet is widely used in our daily life and industry, such as Positioning jigs, Work holding fixtures, Catches and latches, Insert into jigs and fixtures for holding etc.
The arrangement of Pot Magnets gives many advantages:
Small but strong,
Magnetic on one side, leaving the other sides free from magnetism.
Won't chip or crack with constant impacting onto a steel surface, Concentration of flux in the mild steel possibly twice that of the magnet proper, creating increased gripping power.
The most important reasons for magnet users in the world like to choose Strong Magnetics'pot magnets are as follows:
Tailored to our client's business and needs;
100% guarantee the magnetic force;
Perfect assembly between magnets and steel parts;
Available molds for huge kinds of pot magnets.