McMaster-Carr logo
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    25 Products
    About Magnets
    industrial info icon

    Choose a magnet with the right strength, material, and temperature resistance for your application.

    Mount Type

    Magnetic Pull Rating

    Alnico U Magnets

    Image of Product. 1. Front orientation. Magnets. Alnico U Magnets, Standard Magnets, Style 1, Magnetized Through Length.
    Image of Product. 2. Front orientation. Magnets. Alnico U Magnets, Magnets With Unthreaded Hole, Style 2, Magnetized Through Length.

    1

    2

    Image of Product. 3. Front orientation. Magnets. Alnico U Magnets, Magnets With Unthreaded Hole, Style 3, Magnetized Through Length.
    Image of Specification. Magnetized Through Length. Front orientation. Contains Annotated. Magnets. Alnico U Magnets, Standard Magnets.

    3

    Magnetized

    Through

    Length

    Hold or lift metal parts with confidence. The U-shape brings the north and south poles close together, creating a dense magnetic field for powerful pull force. These heat-resistant magnets won’t melt, deform, or lose magnetic strength in temperatures up to 970° F. Also known as horseshoe 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.
    Standard Magnets
    Image of Product. 1. Front orientation. Magnets. Alnico U Magnets, Standard Magnets, Style 1, Magnetized Through Length.
    Image of Specification. Magnetized Through Length. Front orientation. Contains Annotated. Magnets. Alnico U Magnets, Standard Magnets.

    1

    Magnetized

    Through

    Length

    Magnetized Through Length—Magnetized end to end, these magnets channel magnetic energy on the longest axis. This orientation creates deep field penetration and directional pull.
    Style
    Wd.
    Opening
    Wd.
    Wd. at
    Poles
    Lg.
    Max. Pull,
    lbf
    Max. Temp.,
    ° F
    Magnet
    Grade
    Direction of
    Magnetization
    Each
    1/4" Thick
    11 7/64"13/32"47/64"1 1/8"6970Alnico 5Through Length5842K11000000
     
    19/64" Thick
    11 1/8"1/4"29/32"1"2.2970Alnico 5Through Length5841K110000
    11 1/8"1/4"29/32"1"5970Alnico 5Through Length5841K2200000
     
    7/16" Thick
    11 1/2"3/8"1 1/4"1 1/4"9970Alnico 5Through Length5842K1200000
     
    5/8" Thick
    11 13/16"3/8"1 5/8"1 9/16"22970Alnico 5Through Length5842K13000000
     
    3/4" Thick
    13"1"2 1/2"2 1/2"60970Alnico 5Through Length5842K19000000
     
    1 1/4" Thick
    15"1 1/2"4"4 1/8"210970Alnico 5Through Length5842K22000000
     
    Magnets With Unthreaded Hole
    Image of Product. 2. Front orientation. Magnets. Alnico U Magnets, Magnets With Unthreaded Hole, Style 2, Magnetized Through Length.
    Image of Product. 3. Front orientation. Magnets. Alnico U Magnets, Magnets With Unthreaded Hole, Style 3, Magnetized Through Length.
    Image of Attribute. Front orientation. Contains Annotated. Magnetized Through Length. Alnico U Magnets, Magnets With Unthreaded Hole, Magnetized Through Length.

    2

    3

    Magnetized

    Through

    Length

    Mount with pins, bolts, or rivets. There's no need for threading.
    Magnetized Through Length—Magnetized end to end, these magnets channel magnetic energy on the longest axis. This orientation creates deep field penetration and directional pull.
    Style
    Wd.
    Opening
    Wd.
    Wd. at
    Poles
    Hole
    Dia.
    Lg.
    Max. Pull,
    lbf
    Max. Temp.,
    ° F
    Magnet
    Grade
    Direction of
    Magnetization
    Mounting
    Hole Style
    Each
    3/4" Thick
    31 1/8"9/16"1 1/16"3/16"3/4"13970Alnico 5Through LengthStraight5841K12000000
     
    25/32" Thick
    31 3/16"0.59"1 3/16"0.197"25/32"9970Alnico 5Through LengthStraight5841K3300000
     
    15/16" Thick
    22 3/16"1 3/16"2 3/16"3/16"1 13/16"32970Alnico 5Through LengthStraight5841K1500000
    22 7/16"1 3/16"2 7/16"1/4"2"35970Alnico 5Through LengthStraight5841K1600000
    22 5/8"1 3/8"2 5/8"1/4"2 1/4"40970Alnico 5Through LengthStraight5841K1700000
    23"1 1/2"3"1/4"2 1/2"50970Alnico 5Through LengthStraight5841K1800000
     
    63/64" Thick
    31 37/64"0.787"1 37/64"0.197"63/64"19970Alnico 5Through LengthStraight5841K4400000
     
    1" Thick
    23"1 3/4"3"3/16"1 11/16"55970Alnico 5Through LengthStraight5842K1800000
    31 1/2"3/4"1 3/8"3/16"1"22970Alnico 5Through LengthStraight5841K1300000
     
    1 1/8" Thick
    31 3/4"7/8"1 1/2"3/16"1 1/8"30970Alnico 5Through LengthStraight5841K1400000
     
    1 3/16" Thick
    31 49/64"29/32"1 49/64"0.197"1 3/16"25970Alnico 5Through LengthStraight5841K5500000
     
    1 7/8" Thick
    32 1/2"1 3/8"2 1/2"1/4"1 13/16"70970Alnico 5Through LengthStraight5841K19000000
     

    Alnico U-Channel Magnets

    Mount flush in everything from tool holders to fixture plates. These magnets are encased in a channel that concentrates the magnetic field on one side, creating a strong hold on flat surfaces. They're also heat resistant, so they won’t melt, deform, or lose magnetic strength in temperatures up to 1020° F.
    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.
    Standard Magnets
    Image of Product. Front orientation. Magnets. Alnico U-Channel Magnets.
    Image of Specification. Magnetized Through Length. Front orientation. Contains Annotated. Magnets. Alnico U-Channel Magnets.

    Magnetized

    Through Length

    Magnetized Through Length—Magnetized end to end, these magnets channel magnetic energy on the longest axis. This orientation creates deep field penetration and directional pull.
    Wd.
    U-Channel
    Wd.
    Lg.
    Max. Pull,
    lbf
    Max. Temp.,
    ° F
    Magnet
    Grade
    Direction of
    Magnetization
    Each
    5/16" Thick
    1/2"3/16"5"111,020Alnico 5Through Length5695K14000000
     
    3/8" Thick
    5/8"1/4"5"161,020Alnico 5Through Length5695K1600000
     
    1/2" Thick
    3/4"1/4"6"341,020Alnico 5Through Length5695K1800000
     
    5/8" Thick
    1"3/8"6"401,020Alnico 5Through Length5695K22000000
     
    3/4" Thick
    1 1/4"7/16"6"601,020Alnico 5Through Length5695K24000000
     
    7/8" Thick
    1 1/2"1/2"6"601,020Alnico 5Through Length5695K26000000
     
    back to top