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Attention! Input results shown will be +/- 10% from middle value. Hint: The closer your min and max inputs are, the more accurate your results will be!

Outer Diameter:

to

inches mm

Inner Diameter:

to

inches mm

Free Length:

to

inches mm

Wire Diameter:

to

inches mm

Total Coils:

to

Rate: ? Spring rate or spring constant: The amout of force required to move the spring 1 inch of distance or in millimeters the amount of force required to move the spring 1 millimeter of distance.

to

lbs/in N/mm

Info! Please fill in one or more fields to narrow down your search.

Max. Load: ? The maximum amount of force or load you can place on this spring. If you put more force than this you will distort or fatigue the spring.

to

lbs N

Max. Deflection (Max. Travel):

to

inches mm

Solid Height:

to

inches mm

* Required Field

Attention! Input results shown will be +/- 10% from middle value. Hint: The closer your min and max inputs are, the more accurate your results will be!

Outer Diameter:

to

inches mm

Length Inside Hook:

to

inches mm

Wire Diameter:

to

inches mm

Info! Please fill in one or more fields to narrow down your search.

Max. Load: ? The maximum amount of force or load you can place on this spring. If you put more force than this you will distort or fatigue the spring.

to

lbs N

Max. Deflection (Max. Travel):

to

inches mm

Initial Tension: ? The force required to seperate the coils of an extension spring before the spring will extend.

to

lbs N

Rate: ? Spring rate or spring constant: The amout of force required to move the spring 1 inch of distance or in millimeters the amount of force required to move the spring 1 millimeter of distance.

to

lbs/in N/mm

* Required Field

Attention! Input results shown will be +/- 10% from middle value. Hint: The closer your min and max inputs are, the more accurate your results will be!

Outer Diameter:

to

inches mm

Inner Diameter:

to

inches mm

Free Position or Leg Position in degrees: ? Free Position or Leg Position in degrees

degrees

Total Coils:

to

Wire Diameter:

to

inches mm

Body Length:

to

inches mm

Info! Please fill in one or more fields to narrow down your search.

Max. Torque: ? The amount of force applied to a torsion spring to radially move the springs leg a certain amount of degrees.

to

lbs N

Max. Deflection (Degrees of travel):

to

degrees

Rate: ? Torsion spring rate is the amount of radial force required to move the spring 360 degrees of distance. Divide the spring rate by 360 degrees to get the rate per degree

to

in-lbs./deg. N-mm/deg.

Leg Length: ? Both legs are equal in length

to

inches mm

* Required Field

Attention! Input results shown will be +/- 10% from middle value. Hint: The closer your min and max inputs are, the more accurate your results will be!

Small Outer Diameter:

to

inches

Large Outer Diameter:

to

inches

Free Length:

to

inches

Info! Please fill in one or more fields to narrow down your search.

Rate: ? Spring rate or spring constant: The amout of force required to move the spring 1 inch of distance or in millimeters the amount of force required to move the spring 1 millimeter of distance.

to

lbs/in

Total Coils:

to

Solid Height:

to

inches

Wire Diameter:

to

inches

1/8" (0.125) Inch Outer Diameter Stock Extension Springs

Definition of a 1/8” Outer Diameter Extension Spring:

A ⅛” (one eighth) Outer Diameter Extension spring has an outer diameter of 0.125 inches; with lengths inside hooks from 11/32” (0.34375) to 12" (12 inches). These springs are found in our stock extension spring catalog and are ready made.

 

The Spring Store by Acxess Spring provides customers with stock extension springs. Here is a separate list of standard extension springs with a 1/8” outer diameter.

 

Showing 12 out of 4342 items

Select. TSS Part#Outer Diameter by FractionsOuter Diameter (in.) DecimalsInner Diameter (in.) DecimalsLength Inside Hook by FractionsLength Inside Hook (in.) DecimalsRate (lbs./in.)Initial Tension (lbs.)Sugg. Max. Defl. (in.)Sugg. Max. Load (lbs.)Wire Dia. (in.)Total CoilsMaterial TypeHook TypeFinish
PE011-125-15.864-MW-0.340-MH-Z-IN 1/8 = 0.125 0.103 11/32 = 0.340 1.100 0.040 0.500 0.620 0.011 15.864 MW-Music Wire MH Z
PE012-125-14.709-MW-0.340-MH-N-IN 1/8 = 0.125 0.101 11/32 = 0.340 1.200 0.060 0.600 0.800 0.012 14.709 MW-Music Wire MH N
PE008-125-26.063-MW-0.380-MH-N-IN 1/8 = 0.125 0.109 3/8 = 0.380 0.130 0.010 1.800 0.240 0.008 26.063 MW-Music Wire MH N
PE013-125-16.808-MW-0.380-MH-Z-IN 1/8 = 0.125 0.099 3/8 = 0.380 1.900 0.090 0.490 1.000 0.013 16.808 MW-Music Wire MH Z
PE011-125-19.500-MW-0.380-MH-N-IN 1/8 = 0.125 0.103 3/8 = 0.380 0.690 0.040 0.830 0.620 0.011 19.500 MW-Music Wire MH N
PE012-125-18.042-MW-0.380-MH-Z-IN 1/8 = 0.125 0.101 3/8 = 0.380 1.500 0.060 0.500 0.800 0.012 18.042 MW-Music Wire MH Z
PE017-125-15.089-MW-0.410-MH-GI-IN 1/8 = 0.125 0.091 13/32 = 0.410 5.600 0.300 0.330 2.100 0.017 15.089 MW-Music Wire MH GI
PE018-125-14.362-MW-0.410-MH-N-IN 1/8 = 0.125 0.089 13/32 = 0.410 9.500 0.400 0.230 2.500 0.018 14.362 MW-Music Wire MH N
PE012-125-20.542-MW-0.410-MH-N-IN 1/8 = 0.125 0.101 13/32 = 0.410 1.100 0.060 0.640 0.800 0.012 20.542 MW-Music Wire MH N
PE020-125-13.125-SST-0.410-MH-N-IN 1/8 = 0.125 0.085 13/32 = 0.410 15.000 0.500 0.130 2.400 0.020 13.125 SST-Stainless Steel MH N
PE016-125-17.782-MW-0.440-MH-GI-IN 1/8 = 0.125 0.093 7/16 = 0.440 4.000 0.200 0.380 1.800 0.016 17.782 MW-Music Wire MH GI
PE014-125-20.036-MW-0.440-MH-Z-IN 1/8 = 0.125 0.097 7/16 = 0.440 2.200 0.100 0.530 1.300 0.014 20.036 MW-Music Wire MH Z
PE011-125-24.955-MW-0.440-MH-N-IN 1/8 = 0.125 0.103 7/16 = 0.440 0.950 0.040 0.610 0.620 0.011 24.955 MW-Music Wire MH N
PE014-125-20.036-MW-0.440-MH-N-IN 1/8 = 0.125 0.097 7/16 = 0.440 2.400 0.100 0.490 1.300 0.014 20.036 MW-Music Wire MH N
PE013-125-21.424-SST-0.440-MH-N-IN 1/8 = 0.125 0.099 7/16 = 0.440 1.500 0.080 0.390 0.670 0.013 21.424 SST-Stainless Steel MH N
PE015-125-20.834-SST-0.470-MH-N-IN 1/8 = 0.125 0.095 15/32 = 0.470 3.200 0.200 0.260 0.990 0.015 20.834 SST-Stainless Steel MH N
PE017-125-18.618-MW-0.470-MH-N-IN 1/8 = 0.125 0.091 15/32 = 0.470 6.100 0.300 0.300 2.100 0.017 18.618 MW-Music Wire MH N
PE015-125-22.834-MW-0.500-MH-Z-IN 1/8 = 0.125 0.095 1/2 = 0.500 2.500 0.200 0.510 1.400 0.015 22.834 MW-Music Wire MH Z
PE011-125-30.410-SST-0.500-MH-N-IN 1/8 = 0.125 0.103 1/2 = 0.500 0.630 0.040 0.580 0.400 0.011 30.410 SST-Stainless Steel MH N
PE016-125-21.532-MW-0.500-MH-N-IN 1/8 = 0.125 0.093 1/2 = 0.500 3.600 0.200 0.420 1.800 0.016 21.532 MW-Music Wire MH N
PE013-125-26.039-SST-0.500-MH-N-IN 1/8 = 0.125 0.099 1/2 = 0.500 1.200 0.080 0.470 0.670 0.013 26.039 SST-Stainless Steel MH N
PE020-125-17.625-SST-0.500-MH-N-IN 1/8 = 0.125 0.085 1/2 = 0.500 11.000 0.500 0.180 2.400 0.020 17.625 SST-Stainless Steel MH N
PE010-125-34.000-MW-0.560-MH-N-IN 1/8 = 0.125 0.105 9/16 = 0.560 0.290 0.030 1.500 0.460 0.010 34.000 MW-Music Wire MH** N
PE011-125-35.864-MW-0.560-MH-Z-IN 1/8 = 0.125 0.103 9/16 = 0.560 0.470 0.040 1.200 0.620 0.011 35.864 MW-Music Wire MH Z
PE013-125-32.962-MW-0.590-MH-Z-IN 1/8 = 0.125 0.099 19/32 = 0.590 0.940 0.090 0.980 1.000 0.013 32.962 MW-Music Wire MH Z
PE017-125-28.030-SST-0.630-MH-N-IN 1/8 = 0.125 0.091 5/8 = 0.630 3.600 0.300 0.340 1.500 0.017 28.030 SST-Stainless Steel MH N
PE010-125-46.250-MW-0.630-MH-N-IN 1/8 = 0.125 0.105 5/8= 0.630 0.260 0.030 1.700 0.460 0.010 46.250 MW-Music Wire MH N
PE016-125-29.657-MW-0.630-MH-N-IN 1/8 = 0.125 0.093 5/8= 0.630 2.700 0.200 0.560 1.800 0.016 29.657 MW-Music Wire MH N
PE013-125-42.962-MW-0.720-MH-N-IN 1/8 = 0.125 0.099 23/32= 0.720 0.700 0.090 1.300 1.000 0.013 42.962 MW-Music Wire MH N
PE010-125-50.000-MW-0.720-MH-Z-IN 1/8 = 0.125 0.105 23/32= 0.720 0.200 0.030 2.200 0.460 0.010 50.000 MW-Music Wire MH** Z
PE015-125-39.500-SST-0.750-MH-N-IN 1/8 = 0.125 0.095 3/4= 0.750 1.400 0.200 0.590 0.990 0.015 39.500 SST-Stainless Steel MH N
PE013-125-45.270-MW-0.750-MH-N-IN 1/8 = 0.125 0.099 3/4= 0.750 0.620 0.090 1.500 1.000 0.013 45.270 MW-Music Wire MH N
PE010-125-58.250-MW-0.750-MH-N-IN 1/8 = 0.125 0.105 3/4= 0.750 0.180 0.030 2.400 0.460 0.010 58.250 MW-Music Wire MH N
PE016-125-34.250-MW-0.750-MH-Z-IN 1/8 = 0.125 0.093 3/4= 0.750 2.600 0.200 0.590 1.800 0.016 34.250 MW-Music Wire MH Z
PE014-125-42.179-MW-0.750-MH-GI-IN 1/8 = 0.125 0.097 3/4= 0.750 1.100 0.100 1.100 1.300 0.014 42.179 MW-Music Wire MH GI
PE013-125-45.270-MW-0.750-MH-Z-IN 1/8 = 0.125 0.099 3/4= 0.750 0.710 0.090 1.300 1.000 0.013 45.270 MW-Music Wire MH Z
PE013-125-47.577-SST-0.780-MH-N-IN 1/8 = 0.125 0.099 25/32= 0.780 0.580 0.080 1.000 0.670 0.013 47.577 SST-Stainless Steel MH N
PE017-125-42.736-SST-0.880-MH-N-IN 1/8 = 0.125 0.091 7/8= 0.880 2.100 0.300 0.580 1.500 0.017 42.736 SST-Stainless Steel MH N
PE022-125-33.478-MW-0.880-MH-N-IN 1/8 = 0.125 0.081 7/8= 0.880 9.800 0.900 0.390 4.700 0.022 33.478 MW-Music Wire MH N
PE017-125-44.500-MW-0.910-MH-N-IN 1/8 = 0.125 0.091 29/32= 0.910 2.600 0.300 0.690 2.100 0.017 44.500 MW-Music Wire MH N
PE020-125-38.125-MW-0.910-MH-Z-IN 1/8 = 0.125 0.085 29/32= 0.910 5.800 0.600 0.500 3.500 0.020 38.125 MW-Music Wire MH Z
PE017-125-48.030-MW-0.970-MH-N-IN 1/8 = 0.125 0.091 31/32= 0.970 2.000 0.300 0.920 2.100 0.017 48.030 MW-Music Wire MH N
PE016-125-50.907-SST-0.970-MH-N-IN 1/8 = 0.125 0.093 31/32= 0.970 1.400 0.200 0.740 1.200 0.016 50.907 SST-Stainless Steel MH N
PE019-125-44.764-MW-1.000-MH-N-IN 1/8 = 0.125 0.087 1= 1.000 3.800 0.500 0.650 3.000 0.019 44.764 MW-Music Wire MH N
PE018-125-47.139-MW-1.000-MH-Z-IN 1/8 = 0.125 0.089 1= 1.000 2.900 0.400 0.750 2.500 0.018 47.139 MW-Music Wire MH Z
PE021-125-40.691-MW-1.000-MH-GI-IN 1/8 = 0.125 0.083 1= 1.000 6.200 0.700 0.540 4.000 0.021 40.691 MW-Music Wire MH GI
PE020-125-42.625-SST-1.000-MH-N-IN 1/8 = 0.125 0.085 1= 1.000 4.100 0.500 0.460 2.400 0.020 42.625 SST-Stainless Steel MH N
PE018-125-47.139-SST-1.000-MH-N-IN 1/8 = 0.125 0.089 1= 1.000 2.300 0.300 0.620 1.700 0.018 47.139 SST-Stainless Steel MH N
PE013-125-64.500-SST-1.000-MH-N-IN 1/8 = 0.125 0.099 1= 1.000 0.370 0.080 1.600 0.670 0.013 64.500 SST-Stainless Steel MH N
PE020-125-42.625-MW-1.000-MH-N-IN 1/8 = 0.125 0.085 1= 1.000 5.200 0.600 0.550 3.500 0.020 42.625 MW-Music Wire MH N
PE020-125-47.126-SST-1.090-MH-N-IN 1/8 = 0.125 0.085 1 3/32= 1.090 4.400 0.500 0.430 2.400 0.020 47.125 SST-Stainless Steel MH N
PE017-125-57.442-SST-1.130-MH-N-IN 1/8 = 0.125 0.091 1 1/8= 1.130 1.500 0.300 0.810 1.500 0.017 57.442 SST-Stainless Steel MH N
PE020-125-49.125-MW-1.130-MH-Z-IN 1/8 = 0.125 0.085 1 1/8= 1.130 4.000 0.600 0.730 3.500 0.020 49.125 MW-Music Wire MH Z
PE022-125-44.841-MW-1.130-MH-Z-IN 1/8 = 0.125 0.081 1 1/8= 1.130 6.800 0.900 0.560 4.700 0.022 44.841 MW-Music Wire MH Z
PE020-125-55.125-MW-1.250-MH-N-IN 1/8 = 0.125 0.085 1 1/4= 1.250 3.700 0.600 0.770 3.500 0.020 55.125 MW-Music Wire MH N
PE015-125-72.834-SST-1.250-MH-N-IN 1/8 = 0.125 0.095 1 1/4= 1.250 0.670 0.200 1.300 0.990 0.015 72.834 SST-Stainless Steel MH N
PE022-125-50.296-SST-1.250-MH-N-IN 1/8 = 0.125 0.081 1 1/4= 1.250 5.400 0.800 0.470 3.300 0.022 50.296 SST-Stainless Steel MH N
PE017-125-64.500-SST-1.250-MH-N-IN 1/8 = 0.125 0.091 1 1/4= 1.250 1.400 0.300 0.850 1.500 0.017 64.500 SST-Stainless Steel MH N
PE017-125-68.030-SST-1.310-MH-N-IN 1/8 = 0.125 0.091 1 5/16= 1.310 1.400 0.300 0.880 1.500 0.017 68.030 SST-Stainless Steel MH N
PE020-125-61.625-MW-1.380-MH-N-IN 1/8 = 0.125 0.085 1 3/8= 1.380 3.200 0.600 0.910 3.500 0.020 61.625 MW-Music Wire MH N
PE017-125-72.148-SST-1.380-MH-N-IN 1/8 = 0.125 0.091 1 3/8= 1.380 1.300 0.300 0.940 1.500 0.017 72.148 SST-Stainless Steel MH N
PE020-125-61.625-SST-1.380-MH-N-IN 1/8 = 0.125 0.085 1 3/8= 1.380 2.800 0.500 0.670 2.400 0.020 61.625 SST-Stainless Steel MH N
PE018-125-68.250-MW-1.380-MH-N-IN 1/8 = 0.125 0.089 1 3/8= 1.380 1.800 0.400 1.200 2.500 0.018 68.250 MW-Music Wire MH N
PE022-125-56.205-SST-1.380-MH-N-IN 1/8 = 0.125 0.081 1 3/8= 1.380 5.000 0.000 0.500 2.500 0.022 56.205 SST-Stainless Steel MH N
PE013-125-102.962-MW-1.500-MH-N-IN 1/8 = 0.125 0.099 1 1/2= 1.500 0.300 0.090 3.100 1.000 0.013 102.962 MW-Music Wire MH N
PE018-125-74.917-SST-1.500-MH-N-IN 1/8 = 0.125 0.089 1 1/2= 1.500 1.500 0.300 0.960 1.700 0.018 74.917 SST-Stainless Steel MH N
PE025-125-54.500-MW-1.500-MH-N-IN 1/8 = 0.125 0.075 1 1/2= 1.500 11.000 2.000 0.460 6.700 0.025 54.500 MW-Music Wire MH N
PE010-125-133.250-MW-1.500-MH-Z-IN 1/8 = 0.125 0.105 1 1/2= 1.500 0.070 0.030 6.000 0.460 0.010 133.250 MW-Music Wire MH Z
PE015-125-89.500-MW-1.500-MH-Z-IN 1/8 = 0.125 0.095 1 1/2= 1.500 0.650 0.200 2.000 1.400 0.015 89.500 MW-Music Wire MH Z
PE022-125-61.660-SST-1.500-MH-N-IN 1/8 = 0.125 0.081 1 1/2= 1.500 4.400 0.800 0.570 3.300 0.022 61.660 SST-Stainless Steel MH N
PE013-125-102.962-SST-1.500-MH-N-IN 1/8 = 0.125 0.099 1 1/2= 1.500 0.260 0.080 2.200 0.670 0.013 102.962 SST-Stainless Steel MH N
PE019-125-71.079-MW-1.500-MH-Z-IN 1/8 = 0.125 0.087 1 1/2= 1.500 2.300 0.500 1.100 3.000 0.019 71.079 MW-Music Wire MH Z
PE012-125-111.375-MW-1.500-MH-Z-IN 1/8 = 0.125 0.101 1 1/2= 1.500 0.190 0.060 3.800 0.800 0.012 111.375 MW-Music Wire MH Z
PE018-125-74.917-MW-1.500-MH-Z-IN 1/8 = 0.125 0.089 1 1/2= 1.500 1.700 0.400 1.300 2.500 0.018 74.917 MW-Music Wire MH Z
PE023-125-59.066-MW-1.500-MH-N-IN 1/8 = 0.125 0.079 1 1/2= 1.500 7.000 0.750 0.590 5.400 0.023 59.066 MW-Music Wire MH N
PE014-125-95.750-MW-1.500-MH-Z-IN 1/8 = 0.125 0.097 1 1/2= 1.500 0.430 0.100 2.700 1.300 0.014 95.750 MW-Music Wire MH Z
PE020-125-67.625-SST-1.500-MH-N-IN 1/8 = 0.125 0.085 1 1/2= 1.500 2.800 0.500 0.690 2.400 0.020 67.625 SST-Stainless Steel MH N
PE015-125-91.500-MW-1.530-MH-N-IN 1/8 = 0.125 0.095 1 17/32= 1.530 0.590 0.200 2.200 1.400 0.015 91.500 MW-Music Wire MH N
PE010-125-136.250-MW-1.530-MH-Z-IN 1/8 = 0.125 0.105 1 17/32= 1.530 0.080 0.030 5.500 0.460 0.010 136.250 MW-Music Wire MH Z
PE012-125-116.375-MW-1.560-MH-N-IN 1/8 = 0.125 0.101 1 9/16= 1.560 0.200 0.060 3.600 0.800 0.012 116.375 MW-Music Wire MH N
PE022-125-64.387-MW-1.560-MH-Z-IN 1/8 = 0.125 0.081 1 9/16= 1.560 5.300 0.900 0.720 4.700 0.022 64.387 MW-Music Wire MH Z
PE022-125-67.569-SST-1.630-MH-N-IN 1/8 = 0.125 0.081 1 5/8= 1.630 4.000 0.800 0.620 3.300 0.022 67.569 SST-Stainless Steel MH N
PE012-125-122.209-MW-1.630-MH-N-IN 1/8 = 0.125 0.101 1 5/8= 1.630 0.160 0.060 4.600 0.800 0.012 122.209 MW-Music Wire MH N
PE014-125-105.036-MW-1.630-MH-Z-IN 1/8 = 0.125 0.097 1 5/8= 1.630 0.400 0.100 2.900 1.300 0.014 105.036 MW-Music Wire MH Z
PE022-125-73.023-SST-1.750-MH-N-IN 1/8 = 0.125 0.081 1 3/4= 1.750 3.700 0.800 0.670 3.300 0.022 73.023 SST-Stainless Steel MH N
PE020-125-80.125-MW-1.750-MH-Z-IN 1/8 = 0.125 0.085 1 3/4= 1.750 2.600 0.600 1.100 3.500 0.020 80.125 MW-Music Wire MH Z
PE015-125-106.167-SST-1.750-MH-N-IN 1/8 = 0.125 0.095 1 3/4= 1.750 0.500 0.200 1.700 0.990 0.015 106.167 SST-Stainless Steel MH N
PE021-125-76.405-MW-1.750-MH-N-IN 1/8 = 0.125 0.083 1 3/4= 1.750 3.200 0.700 1.000 4.000 0.021 76.405 MW-Music Wire MH N
PE016-125-99.657-SST-1.750-MH-N-IN 1/8 = 0.125 0.093 1 3/4= 1.750 0.660 0.200 1.500 1.200 0.016 99.657 SST-Stainless Steel MH N
PE022-125-78.932-SST-1.880-MH-N-IN 1/8 = 0.125 0.081 1 7/8= 1.880 3.400 0.800 0.730 3.300 0.022 78.932 SST-Stainless Steel MH N
PE014-125-122.893-MW-1.880-MH-Z-IN 1/8 = 0.125 0.097 1 7/8= 1.880 0.350 0.100 3.300 1.300 0.014 122.893 MW-Music Wire MH Z
PE018-125-96.028-MW-1.880-MH-Z-IN 1/8 = 0.125 0.089 1 7/8= 1.880 1.300 0.400 1.600 2.500 0.018 96.028 MW-Music Wire MH Z
PE026-125-69.404-MW-1.940-MH-Z-IN 1/8 = 0.125 0.073 1 15/16= 1.940 11.000 2.000 0.540 7.600 0.026 69.404 MW-Music Wire MH Z
PE013-125-141.424-SST-2.000-MH-N-IN 1/8 = 0.125 0.099 2= 2.000 0.190 0.080 3.100 0.670 0.013 141.424 SST-Stainless Steel MH N
PE022-125-84.387-MW-2.000-MH-N-IN 1/8 = 0.125 0.081 2= 2.000 3.800 0.900 1.000 4.700 0.022 84.387 MW-Music Wire MH N
PE020-125-92.625-SST-2.000-MH-N-IN 1/8 = 0.125 0.085 2= 2.000 1.900 0.500 1.000 2.400 0.020 92.625 SST-Stainless Steel MH N
PE020-125-92.625-MW-2.000-MH-Z-IN 1/8 = 0.125 0.085 2= 2.000 2.100 0.600 1.400 3.500 0.020 92.625 MW-Music Wire MH Z
PE012-125-173.875-MW-2.250-MH-Z-IN 1/8 = 0.125 0.101 2 1/4= 2.250 0.120 0.060 6.300 0.800 0.012 173.875 MW-Music Wire MH Z
PE014-125-167.179-MW-2.500-MH-Z-IN 1/8 = 0.125 0.097 2 1/2= 2.500 0.240 0.100 4.700 1.300 0.014 167.179 MW-Music Wire MH Z
PE018-125-130.473-MW-2.500-MH-Z-IN 1/8 = 0.125 0.089 2 1/2 = 2.500 0.960 0.400 2.200 2.500 0.018 130.473 MW-Music Wire MH Z
PE016-125-240.282-MW-4.000-MH-Z-IN 1/8 = 0.125 0.093 4 = 4.000 0.300 0.200 5.100 1.800 0.016 240.282 MW-Music Wire MH Z
PE017-125-312.736-MW-5.470-MH-N-IN 1/8 = 0.125 0.091 5 15/32= 5.470 0.340 0.300 5.500 2.100 0.017 312.736 MW-Music Wire MH N
PE015-125-389.500-MW-6.000-MH-N-IN 1/8 = 0.125 0.095 6= 6.000 0.140 0.200 8.900 1.400 0.015 389.500 MW-Music Wire MH N
PE015-125-522.834-MW-8.000-MH-Z-IN 1/8 = 0.125 0.095 8= 8.000 0.110 0.200 12.000 1.400 0.015 522.834 MW-Music Wire MH Z
PE020-125-592.625-MW-12.000-MH-Z-IN 1/8 = 0.125 0.085 12= 12.000 0.340 0.600 8.600 3.500 0.020 592.625 MW-Music Wire MH Z

Your ⅛” extension spring's dimensions and measurements have a lot to do with your standard extension spring's force. For this reason, it is very important that the extension spring measurements are precise. Changing the wire diameter by even 0.001" can make a great difference on how strong your spring will be and how much it will be able to travel; especially with a spring as small as a 1/8” outer diameter extension spring.

 

 

How To Measure Your 1/8” Outer Diameter Stock Extension Spring

 

 

 

The 1/8” outer diameter standard extension springs provided here offer customers a wide variation of rate, load, and travel capacities. Every spring has it's own amount of force due to the different physical dimensions each stock extension spring has like wire diameter or total coils. The force chart at the bottom of the page will explain what adjustments will make your spring stronger or weaker.

 

For more force you must either decrease your extension spring's outer diameter, increase the wire diameter, take some coils out, or make the length inside hooks shorter (which will also reduce the amount of coils) so that it'll take the spring more force to extend to the desired extended length. For less force, you must increase the outer diameter, decrease the wire diameter, add coils, or make the length inside hooks of your spring longer (which will also increase the amount of coils) so that it'll take less force for the extension spring to extend to the desired extended length.

 

These stock 1/8” outer diameter stock extension springs are made out of either Stainless Steel Wire or Music Wire. Music wire may sometimes be plated in a zinc finish. Other plating options like black oxide and gold irridite are available on other standard extension spring sizes.