McMaster-Carr logo
    Filter by
    System of Measurement
    Length
    Wire Diameter
    Extended Length @ Maximum Load
    Attribute Image
    Compression Spring Type
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Maximum Temperature
    Steel Grade
    Hook Type
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    4 Products

    Compression Springs

    Image of Product. Front orientation. Compression Springs.
    Squeeze these springs and they’ll push right back to their original length. When compressed, they apply steady pressure to keep components securely in place. Release the pressure and they snap back instantly, just like the tip of a ballpoint pen.
    Spring Steel—Strong and resilient, but best suited for dry environments since moisture will cause these springs to rust.
    Lg.
    OD
    ID
    Wire
    Dia.
    Max.
    Load
    Spring Rate,
    lbf/in
    End Type
    Pkg.
    Qty.
    Pkg.
    Spring Steel
    2.625"0.438"0.342"0.048"Not Rated6.6Closed and Ground120000000000000
     

    Extension Springs

    Image of Product. Front orientation. Extension Springs. Hook End.

    Hook End

    The farther you stretch these springs, the harder they pull to bring the two ends back together. They're commonly used to tension cable, return an air cylinder to its starting point, or hold a door closed.
    Hook End—Hook into closed holes, such as hanger bolt eyes. These springs work best when kept under tension, as they're more likely to slip off than loop-end springs when tension is released. Also known as machine hook ends.
    Spring Steel—Strong and resilient, but best suited for dry environments since moisture will cause these springs to rust.
    Corrosion-Resistant 302 Stainless Steel—Won’t corrode from exposure to moisture and mild chemicals, including ammonia often found in cleaning solutions. These springs are easier to extend than steel, but can’t handle as high a load.
    Minimum Load—The amount of force required to start extending the spring.
    Maximum Load—The amount of force required to fully extend the spring.
    Load,
    lb.
    Lg.
    OD
    Wire
    Dia.
    Extended Lg.
    @ Max. Load
    Min.
    Max.
    Spring Rate,
    lbf/in
    Pkg.
    Qty.
    Pkg.
    Hook End
     
    Spring Steel
    2.625"0.75"0.105"3.368"12.85050.0860000000000000
    2.625"0.75"0.106"3.255"12.6229.9749.26000000000000
     
    Corrosion-Resistant 302 Stainless Steel
    2.625"0.75"0.105"3.1"13.1232.1640.451000000000000
     
    back to top