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    37 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.
    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 compress than steel, but can’t handle as high a load.
    Highly Corrosion-Resistant 316 Stainless Steel—Our most corrosion-resistant stainless steel springs won't degrade when exposed to salt water and harsh chemicals. They're easier to compress than steel, but can’t handle as high a load.
    Lg.,
    mm
    OD,
    mm
    ID,
    mm
    Wire Dia.,
    mm
    Compressed Lg. @
    Max. Load, mm
    Max. Load,
    lb.
    Spring Rate,
    lbf/mm
    End Type
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Corrosion-Resistant 302 Stainless Steel
    12.51.851.350.256.50.630.1ClosedDIN 2095500000000000000
    12.51.921.280.328.11.20.28ClosedDIN 209550000000000000
    12.52.491.880.36.60.680.12Closed—50000000000000
    12.55.634.370.635.82.90.44ClosedDIN 209550000000000000
     
    Highly Corrosion-Resistant 316 Stainless Steel
    12.521.40.38.80.60.18Closed—1000000000000
    12.521.60.26.80.20.03Closed—1000000000000
    12.52.520.256.90.30.05Closed—1000000000000
    12.531.980.519.520.67Closed and Ground—100000000000
    12.532.280.368.30.70.17Closed and Ground—1000000000000
    12.532.40.36.90.40.08Closed—100000000000
    12.53.712.490.6192.80.82Closed and Ground—1000000000000
    12.54.63.380.618.62.30.59Closed and Ground—1000000000000
    12.54.63.680.467.810.21Closed and Ground—1000000000000
    12.54.63.880.367.10.40.08Closed and Ground—1000000000000
    12.55.634.370.637.62.10.44Closed and Ground—1000000000000
    12.55.994.370.818.94.11.2Closed and Ground—1000000000000
    12.55.994.770.6171.80.32Closed and Ground—1000000000000
    12.55.994.970.516.410.17Closed and Ground—1000000000000
    12.57.495.610.9795.51.5Closed and Ground—1000000000000
    12.57.495.870.818.13.30.76Closed and Ground—1000000000000
    12.57.496.170.667.51.80.37Closed and Ground—1000000000000
    12.57.496.370.566.91.10.2Closed and Ground—1000000000000
    12.58.996.811.0996.61.9Closed and Ground—1000000000000
    12.58.997.110.978.64.61.1Closed and Ground—100000000000
    12.58.997.670.667.11.50.28Closed and Ground—1000000000000
    12.510.88.21.38.892.4Closed and Ground—1000000000000
    12.510.89.020.897.330.59Closed and Ground—1000000000000
    12.511.999.191.48.6102.6Closed and Ground—1000000000000
    12.511.9910.110.977.23.50.67Closed and Ground—1000000000000
    12.513.5111.331.096.64.50.76Closed and Ground—1000000000000
    12.515.0112.631.195.95.20.79Closed and Ground—1000000000000
     

    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.
    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.
    Highly Corrosion-Resistant 316 Stainless Steel—Our most corrosion-resistant stainless steel springs won't degrade when exposed to salt water and harsh chemicals. They're 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.,
    mm
    OD,
    mm
    Wire Dia.,
    mm
    Extended Lg.
    @ Max. Load, mm
    Min.
    Max.
    Spring Rate,
    lbf/mm
    Pkg.
    Qty.
    Pkg.
    Loop End
    Image of Product. Front orientation. Extension Springs. Loop End.
     
    Spring Steel
    12.53.50.519.40.462.70.3320000000000000
     
    Corrosion-Resistant 302 Stainless Steel
    12.53.50.519.40.462.250.2720000000000000
     
    Hook End
    Image of Product. Front orientation. Extension Springs. Hook End.
     
    Corrosion-Resistant 302 Stainless Steel
    12.53.50.519.40.452.250.2820000000000000
     
    Highly Corrosion-Resistant 316 Stainless Steel
    12.520.2525.80.060.760.055000000000000
    12.530.329.10.080.840.055000000000000
    12.540.334.60.060.610.035000000000000
     
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