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neodymium magnets with countersunk holes

Block Magnets 15x15x4mm

Name: Block Magnets 15x15x4mm
Brand: Ningbo Beilun Meank Magnetic Industry Co.,LTD.

Nickel Coated Neodymium Block Magnets 15x15x4mm With Countersunk Borehole

Neodymium magnets with countersunk holes offer high holding power and a streamlined design for efficient and versatile use in manufacturing, engineering, and DIY projects.

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Specifications of Block Magnets 15x15x4mm

N35 Neodymium Block Magnets 15x15x4mm With Countersunk Hole

Category	Countersunk Magnet
Material&Grade	NdFeB-N35
Length	15mm
Width	15 mm
Thickness	4mm
Tolerance	+/- 0.05 mm
Direction Of Magnetization	Axially(through thickness)
Coating	Nickel-plated (Ni-Cu-Ni)
Strength	approx. 4.5kg
Max. working temperature	80°C
Colour	Silver-coloured
Weight	5.8g
Available Grade	N35-N52 Block Magnet; 33M-50M; 35H-48H; 35SH-45SH; 28UH-40UH; 28EH-38EH; 28AH-33AH
Operating temperature	N-Series ≤80°C; M-Series ≤100°C; H-Series ≤120°C; SH-Series ≤150°C; UH-Series ≤180°C; EH-Series ≤200°C; AH-Series ≤230°C;
Surface Treatment	Nickel-Copper-Nickel, Zn, Epoxy, Teflon

Features of Block Magnets 15x15x4mm

The square neodymium magnet has a 4.5mm hole and countersunk hole in the center. This square countersunk magnet can be screwed onto components or non-magnetic surfaces with countersunk screws. One N35 neodymium block magnets 15x15x4mm with countersunk hole has strength of 4.5kg.
Several types of screws, such as wooden slotted screws with countersunk head, machine screws, countersunk screws with Torx or hexagon socket can be used to fix the countersunk neodymium magnets. The top diameter of the screw head is 9.46 mm.
Note: neodymium countersunk magnet may break due to too much force. Therefore, when screwing on this countersunk magnet, we recommend a maximum tightening torque of 2Nm.