Magnetisation Grade:         N38M
Material: Neodymium-Iron-Boron (NdFeB), Neodymium and Steel 
Magnet ID:              NPIT-20-N38M-Ni
Plating / Coating: Nickel-plated (Ni) / Nickel (Ni-Cu-Ni) / Double Ni    
Shape: Disc / with Threaded Stem / Internal Thread    
Pot Magnet Size: 
Pot diameter (D): 20m
Thread height (H6): 8mm
Total height  (H): 13 mm
Thread (M): M4
Tlerance:         ±0.1 mm
Magnetisation Direction:   Axial / Radial  
Residual Magnetic Flux Density (Br): 12.2-12.6 KGs (T):  1.12-1.26 T 
Energy Density (BH)max:              35-39 MGOe   279-310 KJ/m³   
Coercivity Force (Hcb):              ≥11.5 KOe  ≥916 KA/m   
Intrinsic Coercivity Force (Hcj):    ≥14 KOe    ≥1114 KA/m   
Maximum Operation Temperature: 100 °C
Delivery Time:           14-35 days   
Measurements:

Material: Neodymium  magnet, which can hold about anything you need to keep within easy reach.
Application: on the refrigerator for aprons, oven mitts or kitchen gadgets, office filing cabinets or in a
school or gym locker.
For NdFeB magnet, it’s with strong magnetism:
Super strong neodymium magnet assembly with easy-clip carabine holder has 45 lbs. pull.
Use to hang a tool belt or other heavy items to metal walls, beams and cabinets.
It works well in jobber vans, workshops, auto repair and service stations, or even in the warehouse. 1.125" diameter
Small quantity is acceptable too. Magnetic hooks are widely used in auto industry.