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)
    19 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

    Magnetic Pull Rating

    Alnico U Magnets

    Image of Product. 1. Front orientation. Magnets. Alnico U 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.

    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.
    Magnets
    Image of Product. 1. Front orientation. Magnets. Alnico U Magnets, Style 1, Magnetized Through Length.
    Image of Specification. Magnetized Through Length. Front orientation. Contains Annotated. Magnets. Alnico U 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 Length0000000000000
     
    19/64" Thick
    11 1/8"1/4"29/32"1"2.2970Alnico 5Through Length00000000000
    11 1/8"1/4"29/32"1"5970Alnico 5Through Length000000000000
     
    7/16" Thick
    11 1/2"3/8"1 1/4"1 1/4"9970Alnico 5Through Length000000000000
     
    5/8" Thick
    11 13/16"3/8"1 5/8"1 9/16"22970Alnico 5Through Length0000000000000
     
    3/4" Thick
    13"1"2 1/2"2 1/2"60970Alnico 5Through Length0000000000000
     
    1 1/4" Thick
    15"1 1/2"4"4 1/8"210970Alnico 5Through Length0000000000000
     
    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 LengthStraight0000000000000
     
    25/32" Thick
    31 3/16"0.59"1 3/16"0.197"25/32"9970Alnico 5Through LengthStraight000000000000
     
    15/16" Thick
    22 3/16"1 3/16"2 3/16"3/16"1 13/16"32970Alnico 5Through LengthStraight000000000000
    22 7/16"1 3/16"2 7/16"1/4"2"35970Alnico 5Through LengthStraight000000000000
    22 5/8"1 3/8"2 5/8"1/4"2 1/4"40970Alnico 5Through LengthStraight000000000000
    23"1 1/2"3"1/4"2 1/2"50970Alnico 5Through LengthStraight000000000000
     
    63/64" Thick
    31 37/64"0.787"1 37/64"0.197"63/64"19970Alnico 5Through LengthStraight000000000000
     
    1" Thick
    23"1 3/4"3"3/16"1 11/16"55970Alnico 5Through LengthStraight000000000000
    31 1/2"3/4"1 3/8"3/16"1"22970Alnico 5Through LengthStraight000000000000
     
    1 1/8" Thick
    31 3/4"7/8"1 1/2"3/16"1 1/8"30970Alnico 5Through LengthStraight000000000000
     
    1 3/16" Thick
    31 49/64"29/32"1 49/64"0.197"1 3/16"25970Alnico 5Through LengthStraight000000000000
     
    1 7/8" Thick
    32 1/2"1 3/8"2 1/2"1/4"1 13/16"70970Alnico 5Through LengthStraight0000000000000
     
    back to top