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    Export Control Classification Number (ECCN)
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    2 Products

    End Type

    Hook Type

    Extension Springs

    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.
    Loop End—The most secure attachment method. With fully closed loops, there's no risk of slipping off.
    Elongated-Hook End—With deeper hooks than standard hook end springs, these are less likely to slip off. However, they’re more prone to breaking if overstretched.
    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.
    Loop End
    Image of Product. Front orientation. Extension Springs. Loop End.
     
    Spring Steel
    5.625"0.563"0.063"11.991"3.1819.52.56600000000000000
     
    Elongated-Hook End
    Image of Product. Front orientation. Extension Springs. Elongated-Hook End.
     
    Spring Steel
    5 5/8"0.719"0.047"14.625"0.484.590.4610000000000000
     
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