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    1 Product

    Extension Springs

    Image of Product. Front orientation. Extension Springs. Hook End × Straight-Wire End.

    Hook End × Straight-Wire

    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.
    Straight-Wire End—Bend the long, straight ends into custom loops and hooks.
    Spring Steel—Strong and resilient, but best suited for dry environments since moisture will cause these springs to rust.
    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 × Straight-Wire End
     
    Spring Steel
    17 1/2"0.75"0.063"23"2.6914.352.6150000000000000
    Steel Extension Spring with Hook and Straight Wire Ends, 17.5" Long
    Pack of 5In stock
     
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