Material NdFeB Neodymium Shape Disc with 4mm hole and counter sink profile Size 15mm diameter x 5 mm thickness /- 0.1mm (c/s= 8mm dia /4mm hole) Grade N45 Operating Temperature ≤80℃ /176F Plating Triple plated (Nickel-Copper-Nickel) Magnetic Face Axially Magnetised Quantity 10-1000 Vertical Pull Force 3.9 kg against minimum 5mm steel plate suitable for screws dia 3.5mm (size 6) Neodymium Magnets are brittle and care must be taken when tightening screws, we suggest you tighten screws slowly using a standard screwdriver by hand instead of electric drill driver/ impact driver which will shatter these magnets!!
