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Countersunk Magnets

 Wholesale Rare Earth Countersunk Block Neodymium Magnets
Powerful Block Magnets Countersunk
Rare Earth Square Countersunk Magnet
Strong Permanent Magnets with Screw
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Wholesale Rare Earth Countersunk Block Neodymium Magnets

Countersunk square magnets offer strong holding power, precise tolerances, and corrosion resistance for various applications.

  • Size :

    20x10x4mm M4

  • Color :

    Silver

  • Order(MOQ) :

    100PCS

  • Sample :

    Free

  • Lead Time :

    3-15days

  • Payment :

    Paypal/TT/Credit Card
Inquire Now

Wholesale Rare Earth Countersunk Block Neodymium Magnets

Product Description

Wholesale Rare Earth Countersunk Block Neodymium Magnets

  Dimensions: 20x10x4mm

  Screw Size: 4mm

  Material: Neodymium

  Plating/Coating: Ni-Cu-Ni (Nickel)

  Magnetization Direction: Axial

 

 

  Warning:

  Keep away from pacemakers and children

  If damaged please dispose of completely

Performance and Environmental Suitability

Composed of a combination of neodymium, iron, and boron, these square countersunk neodymium magnets offer the highest magnetic energy product among commercially available magnets, making them ideal for applications requiring strong holding power.

 

They are designed with a countersunk hole, allowing for easy and secure mounting using screws or bolts. These countersunk rare earth magnets are capable of operating in a wide range of temperatures, typically from -40°C to 200°C, depending on the grade.

 

However, they are susceptible to corrosion, so they are often coated with materials like nickel, zinc, or epoxy to enhance their resistance to moisture and harsh environments. This makes them suitable for both indoor and outdoor use, provided they are adequately protected.

 

Versatile Applications

Block countersunk hole magnets are widely used across various industries due to their compact size and powerful magnetic properties.

 

In the automotive sector, they are employed in sensors, motors, and holding systems. In electronics, they are integral to speakers, hard drives, and magnetic closures. Their ability to be securely mounted makes them popular in construction and manufacturing for fixtures, jigs, and tooling applications.

 

Additionally, they are utilized in renewable energy systems, such as wind turbines, and in medical devices for precise positioning and holding. Their versatility, combined with their high performance, ensures their relevance in both industrial and consumer applications, making them a critical component in modern technology and engineering solutions.

 

neodymium countersunk magnets

Customization

Our company specializes in the research, development, production, and sales of permanent magnets, delivering top quality rare earth magnetic products to our customers.

 

1.Size: Various

2.Plating: Zn/Ni/Epoxy

3.Grade: N35-N52

4.Magnetization Direction: Axial/Radial

 

Neodymium Br Hcb Hcj (Bh)max Tw
Grade mT kGs kA/m kOe kA/m kOe kJ/m3 MGOe ℃
N35 1170-1220 11.7-12.2 ＞868 ＞10.9 ＞955 ＞12 263-287 33-36 ＜80
N38 1220-1250 12.2-12.5 ＞899 ＞11.3 ＞955 ＞12 287-310 38-39 ＜80
N40 1250-1280 12.5-12.8 ＞907 ＞11.4 ＞955 ＞12 302-326 38-41 ＜80
N42 1280-1320 12.8-13.2 ＞915 ＞11.5 ＞955 ＞12 318-342 40-43 ＜80
N45 1330-1370 13.3-13.7 ＞915 ＞11.5 ＞955 ＞12 342-367 41-44 ＜80
N48 1380-1420 13.8-14.2 ＞923 ＞11.6 ＞955 ＞12 366-390 46-49 ＜80
N50 1400-1450 14.0-14.5 ＞796 ＞10 ＞876 ＞11 382-406 48-49 ＜80
N52 1430-1480 14.3-14.8 ＞796 ＞10 ＞876 ＞11 398-422 50-53 ＜80
35M 1170-1220 11.7-12.2 ＞868 ＞10.9 ＞1114 ＞14 263-297 33-36 ＜100
38M 1220-1250 12.2-12.5 ＞899 ＞11.3 ＞1114 ＞14 297-310 36-39 ＜100
40M 1250-1280 12.5-12.8 ＞923 ＞11.6 ＞1114 ＞14 302-326 38-41 ＜100
42M 1280-1320 12.8-13.2 ＞955 ＞12 ＞1114 ＞14 318-342 40-43 ＜100
48M 1360-1430 13.6-14.3 ＞1027 ＞12.9 ＞1114 ＞14 366-390 46-49 ＜100
50M 1400-1450 14.0-14.5 ＞1033 ＞13 ＞1114 ＞14 382-406 48-51 ＜100
33H 1130-1170 11.3-11.7 ＞836 ＞10.5 ＞1353 ＞17 247-271 31-34 ＜120
35H 1170-1220 11.7-12.2 ＞868 ＞10.9 ＞1353 ＞17 263-287 33-36 ＜120
38H 1220-1250 12.2-12.5 ＞899 ＞11.3 ＞1353 ＞17 287-310 36-39 ＜120
40H 1250-1280 12.5-12.8 ＞923 ＞11.6 ＞1353 ＞17 302-326 38-41 ＜120
42H 1280-1320 12.8-13.2 ＞955 ＞12 ＞1353 ＞17 318-342 40-43 ＜120
45H 1300-1360 13-13.6 ＞963 ＞12.1 ＞1353 ＞17 326-358 43-46 ＜120
48H 1370-1430 13.7-14.3 ＞995 ＞12 ＞1353 ＞17 366-390 46-49 ＜120
30SH 1080-1130 10.8-11.3 ＞804 ＞10.1 ＞1592 ＞20 223-247 28-31 ＜150
33SH 1130-1170 10.3-11.7 ＞844 ＞10.6 ＞1592 ＞20 247-271 31-34 ＜150
35SH 1170-1220 11.7-12.2 ＞876 ＞11 ＞1592 ＞20 263-287 33-36 ＜150
38SH 1220-1250 12.2-12.5 ＞907 ＞11.4 ＞1592 ＞20 287-310 36-39 ＜150
40SH 1240-1280 12.5-12.8 ＞939 ＞11.8 ＞1592 ＞20 302-326 36-41 ＜150
42SH 1280-1320 12.8-13.2 ＞987 ＞12.4 ＞1592 ＞20 318-342 40-43 ＜150
45SH 1320-1380 13.2-13.8 ＞1003 ＞12.6 ＞1592 ＞20 342-366 43-46 ＜150
28UH 1020-1080 10.2-10.8 ＞764 ＞9.6 ＞1990 ＞25 207-231 26-29 ＜180
30UH 1080-1130 10.8-11.3 ＞812 ＞10.2 ＞1990 ＞25 223-247 28-31 ＜180
33UH 1130-1170 11.3-11.7 ＞852 ＞10.7 ＞1990 ＞25 247-271 31-36 ＜180
35UH 1170-1220 11.8-12.2 ＞860 ＞10.8 ＞1990 ＞25 263-287 33-36 ＜180
38UH 1220-1250 12.2-12.5 ＞876 ＞11 ＞1990 ＞25 287-310 36-39 ＜180
40UH 1250-1280 12.5-12.8 ＞899 ＞11.3 ＞1990 ＞25 302-326 31-41 ＜180
28EH 1040-1090 10.4-10.9 ＞780 ＞9.8 ＞2388 ＞30 207-231 26-29 ＜200
30EH 1080-1130 10.8-11.3 ＞812 ＞10.2 ＞2388 ＞30 223-247 28-31 ＜200
33EH 1130-1170 11.3-11.7 ＞836 ＞10.5 ＞2388 ＞30 247-271 31-36 ＜200
35EH 1170-1220 11.7-12.2 ＞876 ＞11 ＞2388 ＞30 263-287 33-36 ＜200
38EH 1220-1250 12.2-12.5 ＞899 ＞11.3 ＞2388 ＞30 287-310 36-39 ＜200
28AH 1040-1090 10.4-10.9 ＞787 ＞9.9 ＞2642 ＞33 207-231 26-29 ＜230
30AH 1080-1130 10.8-11.3 ＞819 ＞10.3 ＞2642 ＞33 223-247 28-31 ＜230
38AH 1130-1170 11.3-11.7 ＞843 ＞10.6 ＞2642 ＞33 247-271 31-34 ＜230

 

block neodymium magnets countersunk

 

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rare earth magnets with screw hole

 

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