Magnetisation Grade:         N35
Material: Neodymium-Iron-Boron (NdFeB), Neodymium and Steel 
Magnet ID:              NCR-3624-N35 
Plating / Coating:  Nickel (Ni-Cu-Ni) / Double Ni        
Shape:         Ring with Countersunk Hole (countersink hole)   
Countersunk Magnet Size: 
Ring Total Out-Diameter (D):        36 mm
Ring Total Inner-Diameter (d):     24 mm
Ring Total Height (H):         5 mm
Small Hole Diameter (d1):     6 mm
Tolerance:         ±0.05 mm
Magnetisation Direction:    Axial /  Radial
Residual Magnetic Flux Density (Br):  1170-1220 mT (11.7-12.2 kGs)
Energy Density (BH)max:              263-287 KJ/m³  (33-36 MGOe)
Coercivity Force (Hcb):              ≥ 868 kA/m ( ≥ 10.9 kOe)   
Intrinsic Coercivity Force (Hcj):   ≥ 955  kA/m ( ≥ 12 kOe)   
Maximum Operation Temperature: 80 °C 
Delivery Time:           14-35 days   

Threaded NdFeB Ring Countersunk Magnet/round magnet/sintered magnet/cheap magnet
 1.Shallow pot magnets are low profile for applications where height is limited.
 2.They have a clearance hole through and a countersunk on the magnetic face to accept a countersunk screw.
 3.The range of Shallow Pot Magnets is wide and shallow, the north and south poles are on the same plane.
 4.Because the gap between the poles is narrow, they have a shallow flux field, these magnets are ideal for limpet type gripping applications.
 5.Each magnet in the range is manufactured with a standard M6 thread for building into jigs and fixtures, fitted with a J bolt.
 6.Surface can be red painted, or coated with nickel, zinc or Chrome.
 7.ring holding magnets can be fixed onto or sunken into steel surfaces without any loss of performance.