System of Measurement System of Measurement |
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Length Length | Show |
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Length Length | Hide |
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Spring Type Spring Type |
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 | Extension |
Wire Diameter Wire Diameter |
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Load Load |
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Extended Length @ Maximum Load Extended Length@ Maximum Load |
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Material Material |
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Spring Rate Spring Rate |
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For Spring Type For Spring Type |
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For Maximum Wire Size For Maximum Wire Size |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Maximum Spring Rate Tolerance Maximum SpringRate Tolerance |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Minimum Spring Rate Tolerance Minimum SpringRate Tolerance |
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Finish Finish |
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Extension Springs with Loop Ends
As you stretch an extension spring, it gets harder to pull. Minimum load is the amount of force required to start to extend the spring. Maximum load is the amount of force required to fully extend the spring. Spring rate is the amount of force required for every inch or millimeter of extension.
Zinc-plated springs have mild corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Load, lbs. | |||||||||
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| OD | Wire Dia. | Extended Lg. @ Max. Load | Min. | Max. | Spring Rate, lbs./in. | Material | Pkg. Qty. | Pkg. | |
6.5" Lg. | |||||||||
| 0.313" | 0.035" | 12.5" | 0.79 | 4.6 | 0.62 | Zinc-Plated Spring-Tempered Steel | 3 | 00000000 | 00000 |
| 0.625" | 0.08" | 8.52" | 6.45 | 17.18 | 5.31 | Zinc-Plated Spring-Tempered Steel | 1 | 00000000 | 0000 |
| 0.75" | 0.091" | 8.72" | 7.54 | 20.68 | 5.93 | Zinc-Plated Spring-Tempered Steel | 1 | 00000000 | 0000 |
| 0.75" | 0.091" | 11.775" | 7.03 | 41.17 | 6.37 | Spring-Tempered Steel | 3 | 00000000 | 0000 |
| 0.75" | 0.12" | 8.56" | 20.8 | 87.75 | 29.07 | Spring-Tempered Steel | 3 | 00000000 | 0000 |
| 0.906" | 0.092" | 7.5" | 5 | 8.14 | 3.14 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1" | 0.095" | 14.88" | 2.7 | 30 | 3.3 | Music-Wire Steel | 1 | 00000000 | 0000 |
| 1" | 0.105" | 13.52" | 3.8 | 42.25 | 5.5 | Music-Wire Steel | 1 | 00000000 | 0000 |
| 1" | 0.115" | 12.08" | 4.9 | 54.3 | 8.8 | Music-Wire Steel | 1 | 00000000 | 0000 |
| 1" | 0.125" | 10.98" | 6.11 | 67.87 | 13.8 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1" | 0.135" | 10.18" | 7.56 | 83.98 | 20.8 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1.125" | 0.085" | 21.02" | 1.89 | 20.97 | 1.3 | Music-Wire Steel | 1 | 00000000 | 0000 |
| 1.125" | 0.125" | 12.15" | 5.51 | 61.25 | 9.9 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1.25" | 0.085" | 21.5" | 2 | 21 | 1.3 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1.25" | 0.095" | 19.78" | 2.33 | 25.86 | 1.8 | Music-Wire Steel | 1 | 00000000 | 0000 |
| 1.25" | 0.148" | 10.99" | 7.95 | 88.38 | 17.9 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1.5" | 0.148" | 12.58" | 6.7 | 74.49 | 11.2 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1.75" | 0.207" | 9.83" | 14.59 | 162.17 | 44.3 | Music-Wire Steel | 1 | 00000000 | 00000 |
Corrosion-Resistant Extension Springs with Loop Ends
Made of stainless steel, these springs are more corrosion resistant than steel springs. They're also easier to extend than steel springs. As you stretch an extension spring, it gets harder to pull. Minimum load is the amount of force required to start to extend the spring. Maximum load is the amount of force required to fully extend the spring. Spring rate is the amount of force required for every inch or millimeter of extension.
302 stainless steel springs have good corrosion resistance.
316 stainless steel springs have excellent corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Load, lbs. | |||||||||
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| OD | Wire Dia. | Extended Lg. @ Max. Load | Min. | Max. | Spring Rate, lbs./in. | Material | Pkg. Qty. | Pkg. | |
6.5" Lg. | |||||||||
| 0.625" | 0.08" | 9.07" | 6.45 | 18.32 | 4.62 | 302 Stainless Steel | 1 | 000000000 | 00000 |
| 0.75" | 0.091" | 9.29" | 7.54 | 21.92 | 5.16 | 302 Stainless Steel | 1 | 000000000 | 0000 |
| 1" | 0.095" | 11.2" | 2.25 | 15.16 | 2.749 | 316 Stainless Steel | 1 | 00000000 | 00000 |
| 1" | 0.125" | 10.98" | 5.09 | 56.54 | 11.495 | 302 Stainless Steel | 1 | 0000000 | 00000 |
| 1" | 0.135" | 10.18" | 6.3 | 69.96 | 17.326 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1" | 0.148" | 9.35" | 8.06 | 89.61 | 28.572 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1.25" | 0.085" | 18.5" | 2 | 14 | 1.1 | 302 Stainless Steel | 1 | 00000000 | 00000 |
Extension Springs with Hook Ends
As you stretch an extension spring, it gets harder to pull. Minimum load is the amount of force required to start to extend the spring. Maximum load is the amount of force required to fully extend the spring. Spring rate is the amount of force required for every inch or mm of extension.
For technical drawings and 3-D models, click on a part number.
Load, lbs. | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| OD | Wire Dia. | Extended Lg. @ Max. Load | Min. | Max. | Spring Rate, lbs./in. | Material | Pkg. Qty. | Pkg. | |
6.5" Lg. | |||||||||
| 1" | 0.095" | 14.88" | 2.7 | 30 | 3.3 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1" | 0.105" | 13.52" | 3.8 | 42.25 | 5.5 | Music-Wire Steel | 1 | 00000000 | 0000 |
| 1" | 0.115" | 12.08" | 4.9 | 54.3 | 8.8 | Music-Wire Steel | 1 | 00000000 | 0000 |
| 1" | 0.125" | 10.98" | 6.11 | 67.87 | 13.8 | Music-Wire Steel | 1 | 00000000 | 0000 |
| 1" | 0.135" | 10.18" | 7.56 | 83.98 | 20.8 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1" | 0.148" | 9.35" | 9.68 | 107.57 | 34.3 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1.125" | 0.085" | 21.02" | 1.89 | 20.97 | 1.3 | Music-Wire Steel | 1 | 00000000 | 0000 |
| 1.125" | 0.105" | 15.22" | 3.4 | 37.8 | 3.9 | Music-Wire Steel | 1 | 00000000 | 0000 |
| 1.125" | 0.125" | 12.15" | 5.51 | 61.25 | 9.9 | Music-Wire Steel | 1 | 00000000 | 0000 |
| 1.25" | 0.148" | 10.99" | 7.95 | 88.38 | 17.9 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1.5" | 0.177" | 10.41" | 10.97 | 121.9 | 28.4 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1.75" | 0.207" | 9.83" | 14.59 | 162.17 | 44.3 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 2" | 0.207" | 10.35" | 12.88 | 143.12 | 33.8 | Music-Wire Steel | 1 | 00000000 | 00000 |
Corrosion-Resistant Extension Springs with Hook Ends
Made of stainless steel, these springs are more corrosion resistant than steel springs. They're also easier to extend than steel springs. As you stretch an extension spring, it gets harder to pull. Minimum load is the amount of force required to start to extend the spring. Maximum load is the amount of force required to fully extend the spring. Spring rate is the amount of force required for every inch of extension or, for metric springs, millimeter of compression.
302 stainless steel springs have good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Load, lbs. | |||||||||
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| OD | Wire Dia. | Extended Lg. @ Max. Load | Min. | Max. | Spring Rate, lbs./in. | Material | Pkg. Qty. | Pkg. | |
6.5" Lg. | |||||||||
| 0.5" | 0.054" | 14.1" | 2 | 9.9 | 1.099 | 302 Stainless Steel | 1 | 00000000 | 000000 |
| 0.75" | 0.091" | 9.92" | 7.03 | 25.97 | 5.54 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 0.75" | 0.12" | 7.95" | 20.8 | 57.56 | 25.28 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1" | 0.095" | 14.88" | 2.25 | 24.99 | 2.749 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1" | 0.105" | 13.52" | 3.17 | 35.19 | 4.582 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1" | 0.125" | 10.98" | 5.09 | 56.54 | 11.495 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1.25" | 0.095" | 19.78" | 1.94 | 21.54 | 1.499 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1.5" | 0.177" | 10.41" | 9.14 | 101.54 | 23.657 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 2" | 0.207" | 10.35" | 10.73 | 119.22 | 28.155 | 302 Stainless Steel | 1 | 00000000 | 00000 |
Spring End-Looping Tools
Form loop and hook ends on coiled extension springs. Tools have an adjustable stop screw that ensures repeatable sizing.
| For Spring Type | For Spring OD | For Max. Wire Size | Overall Lg. | For End Type | Includes | Each | |
| Extension | 0.125"-0.5" | 0.062" | 6 1/2" | Hook, Loop | L-Key, Large Forming Punch, Small Forming Punch | 000000 | 0000000 |