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    9 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.
    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.
    Lg.
    OD
    ID
    Wire
    Dia.
    Compressed Lg.
    @ Max. Load
    Max. Load,
    lb.
    Spring Rate,
    lbf/in
    End Type
    Pkg.
    Qty.
    Pkg.
    Spring Steel
    0.688"0.3"0.236"0.032"0.325"5.816Closed and Ground5000000000000
    0.688"0.3"0.256"0.022"0.225"24.5Closed and Ground500000000000
     
    Corrosion-Resistant 302 Stainless Steel
    0.688"0.3"0.236"0.032"0.399"414Closed and Ground50000000000
    0.688"0.3"0.256"0.022"0.329"1.43.9Closed and Ground500000000000
     

    Precision Compression Springs

    Image of Product. Front orientation. Compression Springs. Precision Compression Springs.
    Count on these springs when accuracy and repeatability are a must. All are made to tight OD and spring-rate tolerances. They’re often used for metering, measuring, and positioning jobs that require steady pressure or exact movement.
    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 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.
    OD
    OD Tolerance
    ID
    Wire
    Dia.
    Compressed Lg.
    @ Max. Load
    Max. Load,
    lb.
    Spring Rate,
    lbf/in
    Spring Rate Tolerance,
    lbf/in
    End Type
    Pkg.
    Qty.
    Pkg.
    Spring Steel
    0.688"0.3"-0.004" to 0.004"0.256"0.022"0.244"24.5-0.23 to 0.23Closed and Ground3000000000000
     
    Corrosion-Resistant 302 Stainless Steel
    0.688"0.3"-0.004" to 0.004"0.256"0.022"0.33"1.43.91-0.2 to 0.2Closed and Ground300000000000
     
    Highly Corrosion-Resistant 316 Stainless Steel
    0.688"0.3"-0.012" to 0.012"0.256"0.022"0.402"1.13.91-0.2 to 0.2Closed and Ground30000000000000
     

    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.
    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.
    OD
    Wire
    Dia.
    Extended Lg.
    @ Max. Load
    Min.
    Max.
    Spring Rate,
    lbf/in
    Pkg.
    Qty.
    Pkg.
    Hook End
     
    Highly Corrosion-Resistant 316 Stainless Steel
    0.688"0.188"0.024"1.108"0.331.196200000000000000
    0.688"0.188"0.029"0.948"0.622.0315.9920000000000000
     
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