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 | Extension |
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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. 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.
Inch
Load, lbs. | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| OD | Wire Dia. | Extended Lg. @ Max. Load | Min. | Max. | 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 | 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" | 0.085" | 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" | 0.115" | 14.89" | 3.96 | 44.03 | 4.8 | Music-Wire Steel | 1 | 00000000 | 0000 |
| 1.25" | 0.135" | 12.15" | 6.18 | 68.62 | 11 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1.25" | 0.148" | 10.99" | 7.95 | 88.38 | 17.9 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1.5" | 0.125" | 15.62" | 4.2 | 46.64 | 4.7 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1.5" | 0.148" | 12.58" | 6.7 | 74.49 | 11.2 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1.5" | 0.177" | 10.41" | 10.97 | 121.9 | 28.4 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1.75" | 0.148" | 13.93" | 5.79 | 64.33 | 7.9 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1.75" | 0.177" | 11.37" | 9.5 | 105.51 | 19.7 | 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" | 0.177" | 12.04" | 8.37 | 92.95 | 12.9 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 2" | 0.207" | 10.35" | 12.88 | 143.12 | 28.7 | 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. 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.
Inch
Load, lbs. | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| OD | Wire Dia. | Extended Lg. @ Max. Load | Min. | Max. | 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" | 0.095" | 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" | 0.115" | 12.08" | 4.08 | 45.23 | 7.33 | 302 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 |
| 1.125" | 0.085" | 21.02" | 1.57 | 17.47 | 1.083 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1.125" | 0.105" | 15.22" | 2.83 | 31.49 | 3.249 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1.125" | 0.125" | 12.15" | 4.59 | 51.02 | 8.247 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1.25" | 0.085" | 18.5" | 2 | 14 | 1.1 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1.25" | 0.095" | 13.13" | 1.94 | 11.88 | 1.499 | 316 Stainless Steel | 1 | 00000000 | 00000 |
| 1.25" | 0.095" | 19.78" | 1.94 | 21.54 | 1.499 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1.25" | 0.115" | 14.89" | 3.3 | 36.68 | 3.998 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1.25" | 0.135" | 12.15" | 5.15 | 57.16 | 9.163 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1.25" | 0.148" | 10.99" | 6.62 | 73.62 | 14.911 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1.5" | 0.125" | 15.62" | 3.5 | 38.85 | 3.915 | 302 Stainless Steel | 1 | 0000000 | 00000 |
| 1.5" | 0.148" | 12.58" | 5.58 | 62.05 | 9.33 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1.5" | 0.177" | 10.41" | 9.14 | 101.54 | 23.657 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1.75" | 0.148" | 13.93" | 4.82 | 53.59 | 6.581 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1.75" | 0.177" | 11.37" | 7.91 | 87.89 | 16.41 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1.75" | 0.207" | 8.08" | 12.15 | 70.59 | 36.902 | 316 Stainless Steel | 1 | 00000000 | 00000 |
| 1.75" | 0.207" | 9.83" | 12.15 | 135.09 | 36.902 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 2" | 0.177" | 12.04" | 6.97 | 77.43 | 12.745 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 2" | 0.207" | 10.35" | 10.73 | 119.22 | 28.155 | 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. 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.
Inch
Load, lbs. | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| OD | Wire Dia. | Extended Lg. @ Max. Load | Min. | Max. | 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" | 0.095" | 19.78" | 2.33 | 25.86 | 1.8 | Music-Wire Steel | 1 | 00000000 | 0000 |
| 1.25" | 0.115" | 14.89" | 3.96 | 44.03 | 4.8 | Music-Wire Steel | 1 | 00000000 | 0000 |
| 1.25" | 0.135" | 12.15" | 6.18 | 68.62 | 11 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1.25" | 0.148" | 10.99" | 7.95 | 88.38 | 17.9 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1.5" | 0.125" | 15.62" | 4.2 | 46.64 | 4.7 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1.5" | 0.148" | 12.58" | 6.7 | 74.49 | 11.2 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1.5" | 0.177" | 10.41" | 10.97 | 121.9 | 28.4 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1.75" | 0.148" | 13.93" | 5.79 | 64.33 | 7.9 | Music-Wire Steel | 1 | 00000000 | 00000 |
| 1.75" | 0.177" | 11.37" | 9.5 | 105.51 | 19.7 | 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" | 0.177" | 12.04" | 8.37 | 92.95 | 15.3 | 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. 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.
Inch
Load, lbs. | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| OD | Wire Dia. | Extended Lg. @ Max. Load | Min. | Max. | 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" | 0.115" | 12.08" | 4.08 | 45.23 | 7.33 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1" | 0.125" | 10.98" | 5.09 | 56.54 | 11.495 | 302 Stainless Steel | 1 | 00000000 | 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 |
| 1.125" | 0.085" | 21.02" | 1.57 | 17.47 | 1.083 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1.125" | 0.105" | 15.22" | 2.83 | 31.49 | 3.249 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1.125" | 0.125" | 12.15" | 4.59 | 51.02 | 8.247 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1.25" | 0.095" | 19.78" | 1.94 | 21.54 | 1.499 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1.25" | 0.115" | 14.89" | 3.3 | 36.68 | 3.998 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1.25" | 0.135" | 12.15" | 5.15 | 57.16 | 9.163 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1.25" | 0.148" | 10.99" | 6.62 | 73.62 | 14.911 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1.5" | 0.125" | 15.62" | 3.5 | 38.85 | 3.915 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1.5" | 0.148" | 12.58" | 5.58 | 62.05 | 9.33 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1.5" | 0.177" | 10.41" | 9.14 | 101.54 | 23.657 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1.75" | 0.148" | 13.93" | 4.82 | 53.59 | 6.581 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1.75" | 0.177" | 11.37" | 7.91 | 87.89 | 16.41 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 1.75" | 0.207" | 9.83" | 12.15 | 135.09 | 36.902 | 302 Stainless Steel | 1 | 00000000 | 00000 |
| 2" | 0.177" | 12.04" | 6.97 | 77.43 | 12.745 | 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 |