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    32 Products

    Ceramic Disc Magnets

    Our most economical magnets cut costs, not reliability. They stay strong in temperatures up to 400° F and resist some corrosion. They’re also nonconductive to prevent short circuits in DC motors, transformers, and speakers. However, they are not as strong as rare earth magnets.
    Warning: Maximum pull ratings are based on direct contact with rust-free, unpainted iron surfaces. Variations in material condition will significantly reduce these ratings. Do not use for lifting over people.
    Magnets With Unthreaded Hole
    Image of Product. Magnetized Through Thickness. Front orientation. Magnets. Ceramic Disc Magnets, Magnets With Unthreaded Hole.
    Image of Specification. Magnetized Through Thickness. Front orientation. Contains Annotated. Magnets. Ceramic Disc Magnets, Magnets With Unthreaded Hole.

    Magnetized Through

    Thickness

    Magnetized

    Through

    Thickness

    Mount with pins, bolts, or rivets. There's no need for threading.
    Magnetized Through Thickness—Magnetized from one flat face to the other, these magnets deliver a concentrated magnetic force. They’re best for direct contact with flat surfaces.
    OD
    Hole
    Dia.
    Max. Pull,
    lbf
    Max. Temp.,
    ° F
    Magnet
    Grade
    Direction of
    Magnetization
    Mounting
    Hole Style
    Each
    0.118" Thick
    11/16"19/64"0.4400C8Through ThicknessStraight000000000000
     
    1/8" Thick
    1/2"3/16"0.1400C1Through ThicknessStraight0000000000
     
    3/16" Thick
    1 1/4"3/8"1400C5Through ThicknessStraight00000000000
     
    15/64" Thick
    1 1/8"3/8"0.6400C1Through ThicknessStraight0000000000
     
    1/4" Thick
    3/4"17/64"0.3400C1Through ThicknessStraight0000000000
    1 3/64"0.597"0.7400C1Through ThicknessStraight0000000000
    1 45/64"0.705"0.7400C1Through ThicknessStraight0000000000
     
    9/32" Thick
    2 3/8"1"3400C5Through ThicknessStraight00000000000
     
    19/64" Thick
    2 1/32"0.705"1.7400C1Through ThicknessStraight0000000000
     
    5/16" Thick
    1 49/64"0.866"2.5400C5Through ThicknessStraight00000000000
     
    21/64" Thick
    2 51/64"1 13/64"4400C5Through ThicknessStraight00000000000
     
    13/32" Thick
    4 35/64"1 3/4"9400C5Through ThicknessStraight000000000000
     
    27/64" Thick
    3 3/8"1.28"7400C5Through ThicknessStraight000000000000
     
    7/16" Thick
    1 15/64"0.885"0.6400C1Through ThicknessStraight0000000000
     
    35/64" Thick
    5 17/64"2.21"17400C5Through ThicknessStraight000000000000
     

    Ferrite Cores

    Often used as inductors and transformers in electrical circuits, these cores generate a magnetic hold when magnet wire (sold separately) is wrapped over them and energized. Remove the electric current and the cores lose their magnetism.
    Ring
    Image of Product. Bottom orientation. Ferrite Cores. Ring.
    Thk.
    OD
    Hole
    Dia.
    Temp.,
    ° F
    Material
    Each
    1/16"15/64"1/8"-65 to 250Ferrite Ceramic0000000000000
    1/8"3/8"3/16"-65 to 250Ferrite Ceramic000000000000
    1/4"1/2"5/16"-65 to 250Ferrite Ceramic000000000000
    1/2"1"39/64"-65 to 250Ferrite Ceramic000000000000

    Encased Ceramic Disc Magnets

    Image of Product. 2. Front orientation. Magnets. Encased Ceramic Disc Magnets, Magnets With Unthreaded Hole, Style 2.
    Image of Product. 3. Front orientation. Magnets. Encased Ceramic Disc Magnets, Magnets With Unthreaded Hole, Style 3.

    2

    3

    Image of Product. 4. Front orientation. Magnets. Encased Ceramic Disc Magnets, Magnets With Unthreaded Hole, Style 4.
    Image of Product. 8. Front orientation. Magnets. Encased Ceramic Disc Magnets, Magnets With Mounting Plate, Style 8.

    4

    8

    Our most economical magnets with built-in durability. A protective case shields them from cracks and chips caused by bumps and drops. Ceramic magnets deliver a cost-effective balance of corrosion and temperature resistance. However, they are not as strong as rare earth magnets.
    Warning: Maximum pull ratings are based on direct contact with rust-free, unpainted iron surfaces. Variations in material condition will significantly reduce holding strength. Do not use for lifting over people.
    Magnets With Unthreaded Hole
    Image of Product. 2. Front orientation. Magnets. Encased Ceramic Disc Magnets, Magnets With Unthreaded Hole, Style 2.
    Image of Product. 3. Front orientation. Magnets. Encased Ceramic Disc Magnets, Magnets With Unthreaded Hole, Style 3.

    2

    3

    Image of Product. 4. Front orientation. Magnets. Encased Ceramic Disc Magnets, Magnets With Unthreaded Hole, Style 4.

    4

    Mount with pins, bolts, or rivets. There's no need for threading.
    Zinc-Plated Steel Case—Withstands occasional exposure to moisture.
    Chrome-Plated Steel Case—The bright, shiny finish resists salt water and chemicals better than other finishes and is less likely to wear off.
    Stainless Steel Case—Our most corrosion-resistant case withstands exposure to chemicals. However, it's not as strong as steel.
    Anodized Aluminum Case—The anodized finish adds an extra layer of corrosion resistance.
    Style
    Thk.
    OD
    Hole
    Dia.
    Max. Pull,
    lbf
    Max. Temp.,
    ° F
    Magnet
    Grade
    Mounting Hole
    Style
    For Screw
    Size
    Each
    Zinc-Plated Steel Case
    233/64"3 7/8"3/8"147245C8Straight5/16"
    		0000000000000
    33/16"1 15/64"0.138"15245C8StraightNo. 6
    		00000000000
    35/16"2 1/32"0.19"42245C8StraightNo. 10
    		00000000000
    33/8"2 5/8"1/4"80245C8Straight1/4"
    		000000000000
    37/16"3 3/16"1/4"140245C8Straight1/4"
    		000000000000
     
    Chrome-Plated Steel Case
    319/64"2 1/32"3/16"35170C5StraightNo. 8
    		00000000000
    333/64"3 3/8"3/8"120170C5Straight5/16"
    		000000000000
     
    Stainless Steel Case
    27 mm32 mm6 mm13425—CountersunkM5
    		00000000000
    28 mm40 mm6 mm16425—CountersunkM5
    		00000000000
    210 mm50 mm9 mm32425—StraightM8
    		000000000000
    214 mm63 mm7 mm50425—StraightM6
    		000000000000
     
    Anodized Aluminum Case
    41/2"3"1/4"24180C8Straight1/4"
    		000000000000
     
    Magnets With Mounting Plate
    Image of Product. 8. Front orientation. Magnets. Encased Ceramic Disc Magnets, Magnets With Mounting Plate, Style 8.

    8

    Add a magnetic surface anywhere. Install the mounting plate, then screw on the magnet.
    Chrome-Plated Steel Case—The bright, shiny finish resists salt water and chemicals better than other finishes and is less likely to wear off.
    Mounting
    Style
    Thk.
    OD
    Hole
    Dia.
    Max. Pull,
    lbf
    Max.
    Temp.
    Mounting
    Hole Style
    Thread
    Size
    Plate
    Material
    Hole
    Dia.
    Plate
    Thk.
    Each
    Chrome-Plated Steel Case
    80.73"2 5/64"0.275"4.5Not RatedStraight1/4"-20
    		Plastic0.085"0.35"000000000000
     
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