Magnetisation Grade:         N38
Material: Neodymium-Iron-Boron (NdFeB), Neodymium and Steel 
Magnet ID:              NCB-25155-N38-Ni
Plating / Coating:  Nickel (Ni-Cu-Ni) / Double Ni / Zinc (Zn) / Epoxy        
Shape:         Block with Countersunk (countersink)   
Countersunk Magnet Size: 
Block Total Long (L):       25 mm
Block Total Height (H):         15 mm
Block Total Width (W):         5 mm
Small Hole Diameter (d):      5 mm
Tolerance:         ±0.05 mm
Magnetisation Direction:    Axial  /  Radial   
Residual Magnetic Flux Density (Br): 1220-1250 mT (12.2-12.5 kGs)
Energy Density (BH)max:             287-310 KJ/m³  (36-39 MGOe) 
Coercivity Force (Hcb):              ≥ 899 kA/m ( ≥ 11.3 kOe)  
Intrinsic Coercivity Force (Hcj):    ≥ 955  kA/m ( ≥ 12 kOe)   
Maximum Operation Temperature: 80 °C 
Delivery Time:           14-35 days   
1.Countersunk pot magnet
2.Grade:N35-N52,33M-48M.etc
3.Certificate:ISO9001:2008
Countersunk pot magnet (neodymium magnets countersunk)
Neodymium Magnets' outstanding properties
1)High performance:
N52, N48M, 48SH, 42UH, 38EH, 33AH  (The grade like N48-N52 could meet requirements on strong power).
2)High working temperature:
The max operating temperature is up to 200 degree centigrade or 380 curie temperature.
3)High consistency:
The cpk of Br and Hcj are much higher than 1.67 the consisitency of surface magnetic field and magnetic flux can be controlled with +/-1%.
4)High Anti-corrosion:
The sale spray test and humid heat test of the high anti-corrosion coating could be more than 1000 hours
5) Low weight loss
 The average low weight loss  is less than 2 mg/cm2 in 20 days.
Countersunk Magnets have a central hole to make  magnet to be fastened in place using an  ordinary countersunk screw.
With either a north pole or south pole in the countersunk face, the magnets are all available.
Purchase Notes:
Please inform us the size,shape,grade,coating and quantity, so that we'll offer the competitive price.
Looking forward to pleasant cooperation.