Collection: Springs - Extension

1098 Products in this selection
This is a combined category of Extension Springs.
Use the filters in the table below, or the category tree above to refine the selection. To order any item, simply click the part number for a full product page, then add to your cart.
Springs - Extension
Additional resources:
Spings Catalogue PDF
Spring Anchors
A more concise listing may be found on the Smallparts store at Springs - Extension. Smallparts promote the most popular MBA products.
OD (D0) Overall Length (L0) Wire Diameter (d) Max. Extension (L1) Spring Rate Initial Tension (IT) Indicative
Image
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
114.3
mm

(4.5 in.)
Wire Diameter (d)
4.01
mm

(0.158 in.)
Max. Extension (L1)
185.420
mm
Spring Rate
6.009
N/mm
Initial Tension (IT)
29.8
N
1150320 | ES-3810-1143-40-M --- Extension Springs - 38.1x114.3x4.01 mm - Steel
Material: Steel    Load at L1: 456.700 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1143-40-M Extension Springs - 38.1x114.3x4.01 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $126.59 AUD
Regular price Sale price $126.59 AUD
Each
OD (D0) Overall Length (L0) Wire Diameter (d) Max. Extension (L1) Indicative
Image
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
114.3
mm

(4.5 in.)
Wire Diameter (d)
4.01
mm

(0.158 in.)
Max. Extension (L1)
185.420
mm
1150320 | ES-3810-1143-40-M --- Extension Springs - 38.1x114.3x4.01 mm - Steel
Material: Steel    Spring Rate: 6.009 N/mm    Initial Tension (IT): 29.8 N    Load at L1: 456.700 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1143-40-M Extension Springs - 38.1x114.3x4.01 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $126.59 AUD
Regular price Sale price $126.59 AUD
Each
View the product page first if you are unsure.
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
114.3
mm

(4.5 in.)
Wire Diameter (d)
4.50
mm

(0.177 in.)
Max. Extension (L1)
161.290
mm
Spring Rate
10.490
N/mm
Initial Tension (IT)
48.8
N
1150321 | ES-3810-1143-45-M --- Extension Springs - 38.1x114.3x4.5 mm - Steel
Material: Steel    Load at L1: 542.240 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1143-45-M Extension Springs - 38.1x114.3x4.5 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $147.77 AUD
Regular price Sale price $147.77 AUD
Each
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
114.3
mm

(4.5 in.)
Wire Diameter (d)
4.50
mm

(0.177 in.)
Max. Extension (L1)
161.290
mm
1150321 | ES-3810-1143-45-M --- Extension Springs - 38.1x114.3x4.5 mm - Steel
Material: Steel    Spring Rate: 10.490 N/mm    Initial Tension (IT): 48.8 N    Load at L1: 542.240 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1143-45-M Extension Springs - 38.1x114.3x4.5 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $147.77 AUD
Regular price Sale price $147.77 AUD
Each
View the product page first if you are unsure.
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
127.0
mm

(5 in.)
Wire Diameter (d)
3.15
mm

(0.124 in.)
Max. Extension (L1)
262.640
mm
Spring Rate
1.384
N/mm
Initial Tension (IT)
18.7
N
1150334 | ES-3810-1270-31-M --- Extension Springs - 38.1x127x3.15 mm - Steel
Material: Steel    Load at L1: 207.470 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1270-31-M Extension Springs - 38.1x127x3.15 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $91.32 AUD
Regular price Sale price $91.32 AUD
Each
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
127.0
mm

(5 in.)
Wire Diameter (d)
3.15
mm

(0.124 in.)
Max. Extension (L1)
262.640
mm
1150334 | ES-3810-1270-31-M --- Extension Springs - 38.1x127x3.15 mm - Steel
Material: Steel    Spring Rate: 1.384 N/mm    Initial Tension (IT): 18.7 N    Load at L1: 207.470 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1270-31-M Extension Springs - 38.1x127x3.15 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $91.32 AUD
Regular price Sale price $91.32 AUD
Each
View the product page first if you are unsure.
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
127.0
mm

(5 in.)
Wire Diameter (d)
4.01
mm

(0.158 in.)
Max. Extension (L1)
218.950
mm
Spring Rate
4.642
N/mm
Initial Tension (IT)
29.8
N
1150335 | ES-3810-1270-40-M --- Extension Springs - 38.1x127x4.01 mm - Steel
Material: Steel    Load at L1: 456.700 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1270-40-M Extension Springs - 38.1x127x4.01 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $136.50 AUD
Regular price Sale price $136.50 AUD
Each
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
127.0
mm

(5 in.)
Wire Diameter (d)
4.01
mm

(0.158 in.)
Max. Extension (L1)
218.950
mm
1150335 | ES-3810-1270-40-M --- Extension Springs - 38.1x127x4.01 mm - Steel
Material: Steel    Spring Rate: 4.642 N/mm    Initial Tension (IT): 29.8 N    Load at L1: 456.700 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1270-40-M Extension Springs - 38.1x127x4.01 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $136.50 AUD
Regular price Sale price $136.50 AUD
Each
View the product page first if you are unsure.
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
127.0
mm

(5 in.)
Wire Diameter (d)
4.50
mm

(0.177 in.)
Max. Extension (L1)
187.200
mm
Spring Rate
8.210
N/mm
Initial Tension (IT)
48.8
N
1150336 | ES-3810-1270-45-M --- Extension Springs - 38.1x127x4.5 mm - Steel
Material: Steel    Load at L1: 542.240 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1270-45-M Extension Springs - 38.1x127x4.5 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $159.59 AUD
Regular price Sale price $159.59 AUD
Each
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
127.0
mm

(5 in.)
Wire Diameter (d)
4.50
mm

(0.177 in.)
Max. Extension (L1)
187.200
mm
1150336 | ES-3810-1270-45-M --- Extension Springs - 38.1x127x4.5 mm - Steel
Material: Steel    Spring Rate: 8.210 N/mm    Initial Tension (IT): 48.8 N    Load at L1: 542.240 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1270-45-M Extension Springs - 38.1x127x4.5 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $159.59 AUD
Regular price Sale price $159.59 AUD
Each
View the product page first if you are unsure.
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
139.7
mm

(5.5 in.)
Wire Diameter (d)
3.15
mm

(0.124 in.)
Max. Extension (L1)
307.340
mm
Spring Rate
1.121
N/mm
Initial Tension (IT)
18.7
N
1150339 | ES-3810-1397-31-M --- Extension Springs - 38.1x139.7x3.15 mm - Steel
Material: Steel    Load at L1: 207.470 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1397-31-M Extension Springs - 38.1x139.7x3.15 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $98.23 AUD
Regular price Sale price $98.23 AUD
Each
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
139.7
mm

(5.5 in.)
Wire Diameter (d)
3.15
mm

(0.124 in.)
Max. Extension (L1)
307.340
mm
1150339 | ES-3810-1397-31-M --- Extension Springs - 38.1x139.7x3.15 mm - Steel
Material: Steel    Spring Rate: 1.121 N/mm    Initial Tension (IT): 18.7 N    Load at L1: 207.470 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1397-31-M Extension Springs - 38.1x139.7x3.15 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $98.23 AUD
Regular price Sale price $98.23 AUD
Each
View the product page first if you are unsure.
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
139.7
mm

(5.5 in.)
Wire Diameter (d)
4.01
mm

(0.158 in.)
Max. Extension (L1)
252.480
mm
Spring Rate
3.784
N/mm
Initial Tension (IT)
29.8
N
1150340 | ES-3810-1397-40-M --- Extension Springs - 38.1x139.7x4.01 mm - Steel
Material: Steel    Load at L1: 456.700 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1397-40-M Extension Springs - 38.1x139.7x4.01 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $145.68 AUD
Regular price Sale price $145.68 AUD
Each
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
139.7
mm

(5.5 in.)
Wire Diameter (d)
4.01
mm

(0.158 in.)
Max. Extension (L1)
252.480
mm
1150340 | ES-3810-1397-40-M --- Extension Springs - 38.1x139.7x4.01 mm - Steel
Material: Steel    Spring Rate: 3.784 N/mm    Initial Tension (IT): 29.8 N    Load at L1: 456.700 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1397-40-M Extension Springs - 38.1x139.7x4.01 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $145.68 AUD
Regular price Sale price $145.68 AUD
Each
View the product page first if you are unsure.
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
139.7
mm

(5.5 in.)
Wire Diameter (d)
4.50
mm

(0.177 in.)
Max. Extension (L1)
212.850
mm
Spring Rate
6.740
N/mm
Initial Tension (IT)
48.8
N
1150341 | ES-3810-1397-45-M --- Extension Springs - 38.1x139.7x4.5 mm - Steel
Material: Steel    Load at L1: 542.240 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1397-45-M Extension Springs - 38.1x139.7x4.5 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $172.14 AUD
Regular price Sale price $172.14 AUD
Each
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
139.7
mm

(5.5 in.)
Wire Diameter (d)
4.50
mm

(0.177 in.)
Max. Extension (L1)
212.850
mm
1150341 | ES-3810-1397-45-M --- Extension Springs - 38.1x139.7x4.5 mm - Steel
Material: Steel    Spring Rate: 6.740 N/mm    Initial Tension (IT): 48.8 N    Load at L1: 542.240 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1397-45-M Extension Springs - 38.1x139.7x4.5 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $172.14 AUD
Regular price Sale price $172.14 AUD
Each
View the product page first if you are unsure.
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
152.4
mm

(6 in.)
Wire Diameter (d)
3.15
mm

(0.124 in.)
Max. Extension (L1)
352.040
mm
Spring Rate
0.946
N/mm
Initial Tension (IT)
18.7
N
1150345 | ES-3810-1524-31-M --- Extension Springs - 38.1x152.4x3.15 mm - Steel
Material: Steel    Load at L1: 207.470 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1524-31-M Extension Springs - 38.1x152.4x3.15 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $105.95 AUD
Regular price Sale price $105.95 AUD
Each
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
152.4
mm

(6 in.)
Wire Diameter (d)
3.15
mm

(0.124 in.)
Max. Extension (L1)
352.040
mm
1150345 | ES-3810-1524-31-M --- Extension Springs - 38.1x152.4x3.15 mm - Steel
Material: Steel    Spring Rate: 0.946 N/mm    Initial Tension (IT): 18.7 N    Load at L1: 207.470 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1524-31-M Extension Springs - 38.1x152.4x3.15 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $105.95 AUD
Regular price Sale price $105.95 AUD
Each
View the product page first if you are unsure.
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
152.4
mm

(6 in.)
Wire Diameter (d)
4.01
mm

(0.158 in.)
Max. Extension (L1)
286.000
mm
Spring Rate
3.188
N/mm
Initial Tension (IT)
29.8
N
1150346 | ES-3810-1524-40-M --- Extension Springs - 38.1x152.4x4.01 mm - Steel
Material: Steel    Load at L1: 456.700 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1524-40-M Extension Springs - 38.1x152.4x4.01 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $155.41 AUD
Regular price Sale price $155.41 AUD
Each
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
152.4
mm

(6 in.)
Wire Diameter (d)
4.01
mm

(0.158 in.)
Max. Extension (L1)
286.000
mm
1150346 | ES-3810-1524-40-M --- Extension Springs - 38.1x152.4x4.01 mm - Steel
Material: Steel    Spring Rate: 3.188 N/mm    Initial Tension (IT): 29.8 N    Load at L1: 456.700 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1524-40-M Extension Springs - 38.1x152.4x4.01 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $155.41 AUD
Regular price Sale price $155.41 AUD
Each
View the product page first if you are unsure.
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
152.4
mm

(6 in.)
Wire Diameter (d)
4.50
mm

(0.177 in.)
Max. Extension (L1)
238.760
mm
Spring Rate
5.730
N/mm
Initial Tension (IT)
48.8
N
1150347 | ES-3810-1524-45-M --- Extension Springs - 38.1x152.4x4.5 mm - Steel
Material: Steel    Load at L1: 542.240 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1524-45-M Extension Springs - 38.1x152.4x4.5 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $183.59 AUD
Regular price Sale price $183.59 AUD
Each
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
152.4
mm

(6 in.)
Wire Diameter (d)
4.50
mm

(0.177 in.)
Max. Extension (L1)
238.760
mm
1150347 | ES-3810-1524-45-M --- Extension Springs - 38.1x152.4x4.5 mm - Steel
Material: Steel    Spring Rate: 5.730 N/mm    Initial Tension (IT): 48.8 N    Load at L1: 542.240 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1524-45-M Extension Springs - 38.1x152.4x4.5 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $183.59 AUD
Regular price Sale price $183.59 AUD
Each
View the product page first if you are unsure.
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
165.1
mm

(6.5 in.)
Wire Diameter (d)
3.15
mm

(0.124 in.)
Max. Extension (L1)
396.750
mm
Spring Rate
0.823
N/mm
Initial Tension (IT)
18.7
N
1150355 | ES-3810-1651-31-M --- Extension Springs - 38.1x165.1x3.15 mm - Steel
Material: Steel    Load at L1: 207.470 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1651-31-M Extension Springs - 38.1x165.1x3.15 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $112.68 AUD
Regular price Sale price $112.68 AUD
Each
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
165.1
mm

(6.5 in.)
Wire Diameter (d)
3.15
mm

(0.124 in.)
Max. Extension (L1)
396.750
mm
1150355 | ES-3810-1651-31-M --- Extension Springs - 38.1x165.1x3.15 mm - Steel
Material: Steel    Spring Rate: 0.823 N/mm    Initial Tension (IT): 18.7 N    Load at L1: 207.470 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1651-31-M Extension Springs - 38.1x165.1x3.15 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $112.68 AUD
Regular price Sale price $112.68 AUD
Each
View the product page first if you are unsure.
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
165.1
mm

(6.5 in.)
Wire Diameter (d)
4.01
mm

(0.158 in.)
Max. Extension (L1)
319.530
mm
Spring Rate
2.768
N/mm
Initial Tension (IT)
29.8
N
1150356 | ES-3810-1651-40-M --- Extension Springs - 38.1x165.1x4.01 mm - Steel
Material: Steel    Load at L1: 456.700 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1651-40-M Extension Springs - 38.1x165.1x4.01 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $165.59 AUD
Regular price Sale price $165.59 AUD
Each
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
165.1
mm

(6.5 in.)
Wire Diameter (d)
4.01
mm

(0.158 in.)
Max. Extension (L1)
319.530
mm
1150356 | ES-3810-1651-40-M --- Extension Springs - 38.1x165.1x4.01 mm - Steel
Material: Steel    Spring Rate: 2.768 N/mm    Initial Tension (IT): 29.8 N    Load at L1: 456.700 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1651-40-M Extension Springs - 38.1x165.1x4.01 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $165.59 AUD
Regular price Sale price $165.59 AUD
Each
View the product page first if you are unsure.
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
165.1
mm

(6.5 in.)
Wire Diameter (d)
4.50
mm

(0.177 in.)
Max. Extension (L1)
264.410
mm
Spring Rate
4.970
N/mm
Initial Tension (IT)
48.8
N
1150357 | ES-3810-1651-45-M --- Extension Springs - 38.1x165.1x4.5 mm - Steel
Material: Steel    Load at L1: 542.240 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1651-45-M Extension Springs - 38.1x165.1x4.5 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $195.50 AUD
Regular price Sale price $195.50 AUD
Each
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
165.1
mm

(6.5 in.)
Wire Diameter (d)
4.50
mm

(0.177 in.)
Max. Extension (L1)
264.410
mm
1150357 | ES-3810-1651-45-M --- Extension Springs - 38.1x165.1x4.5 mm - Steel
Material: Steel    Spring Rate: 4.970 N/mm    Initial Tension (IT): 48.8 N    Load at L1: 542.240 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1651-45-M Extension Springs - 38.1x165.1x4.5 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $195.50 AUD
Regular price Sale price $195.50 AUD
Each
View the product page first if you are unsure.
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
177.8
mm

(7 in.)
Wire Diameter (d)
3.15
mm

(0.124 in.)
Max. Extension (L1)
441.200
mm
Spring Rate
0.718
N/mm
Initial Tension (IT)
18.7
N
1150360 | ES-3810-1778-31-M --- Extension Springs - 38.1x177.8x3.15 mm - Steel
Material: Steel    Load at L1: 207.470 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1778-31-M Extension Springs - 38.1x177.8x3.15 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $120.68 AUD
Regular price Sale price $120.68 AUD
Each
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
177.8
mm

(7 in.)
Wire Diameter (d)
3.15
mm

(0.124 in.)
Max. Extension (L1)
441.200
mm
1150360 | ES-3810-1778-31-M --- Extension Springs - 38.1x177.8x3.15 mm - Steel
Material: Steel    Spring Rate: 0.718 N/mm    Initial Tension (IT): 18.7 N    Load at L1: 207.470 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1778-31-M Extension Springs - 38.1x177.8x3.15 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $120.68 AUD
Regular price Sale price $120.68 AUD
Each
View the product page first if you are unsure.
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
177.8
mm

(7 in.)
Wire Diameter (d)
4.01
mm

(0.158 in.)
Max. Extension (L1)
353.160
mm
Spring Rate
2.417
N/mm
Initial Tension (IT)
29.8
N
1150361 | ES-3810-1778-40-M --- Extension Springs - 38.1x177.8x4.01 mm - Steel
Material: Steel    Load at L1: 456.700 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1778-40-M Extension Springs - 38.1x177.8x4.01 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $175.32 AUD
Regular price Sale price $175.32 AUD
Each
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
177.8
mm

(7 in.)
Wire Diameter (d)
4.01
mm

(0.158 in.)
Max. Extension (L1)
353.160
mm
1150361 | ES-3810-1778-40-M --- Extension Springs - 38.1x177.8x4.01 mm - Steel
Material: Steel    Spring Rate: 2.417 N/mm    Initial Tension (IT): 29.8 N    Load at L1: 456.700 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1778-40-M Extension Springs - 38.1x177.8x4.01 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $175.32 AUD
Regular price Sale price $175.32 AUD
Each
View the product page first if you are unsure.
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
177.8
mm

(7 in.)
Wire Diameter (d)
4.50
mm

(0.177 in.)
Max. Extension (L1)
290.070
mm
Spring Rate
4.400
N/mm
Initial Tension (IT)
48.8
N
1150362 | ES-3810-1778-45-M --- Extension Springs - 38.1x177.8x4.5 mm - Steel
Material: Steel    Load at L1: 542.240 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1778-45-M Extension Springs - 38.1x177.8x4.5 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $207.59 AUD
Regular price Sale price $207.59 AUD
Each
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
177.8
mm

(7 in.)
Wire Diameter (d)
4.50
mm

(0.177 in.)
Max. Extension (L1)
290.070
mm
1150362 | ES-3810-1778-45-M --- Extension Springs - 38.1x177.8x4.5 mm - Steel
Material: Steel    Spring Rate: 4.400 N/mm    Initial Tension (IT): 48.8 N    Load at L1: 542.240 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1778-45-M Extension Springs - 38.1x177.8x4.5 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $207.59 AUD
Regular price Sale price $207.59 AUD
Each
View the product page first if you are unsure.
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
190.5
mm

(7.5 in.)
Wire Diameter (d)
3.15
mm

(0.124 in.)
Max. Extension (L1)
485.700
mm
Spring Rate
0.631
N/mm
Initial Tension (IT)
18.7
N
1150366 | ES-3810-1905-31-M --- Extension Springs - 38.1x190.5x3.15 mm - Steel
Material: Steel    Load at L1: 207.470 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1905-31-M Extension Springs - 38.1x190.5x3.15 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $128.23 AUD
Regular price Sale price $128.23 AUD
Each
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
190.5
mm

(7.5 in.)
Wire Diameter (d)
3.15
mm

(0.124 in.)
Max. Extension (L1)
485.700
mm
1150366 | ES-3810-1905-31-M --- Extension Springs - 38.1x190.5x3.15 mm - Steel
Material: Steel    Spring Rate: 0.631 N/mm    Initial Tension (IT): 18.7 N    Load at L1: 207.470 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1905-31-M Extension Springs - 38.1x190.5x3.15 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $128.23 AUD
Regular price Sale price $128.23 AUD
Each
View the product page first if you are unsure.
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
190.5
mm

(7.5 in.)
Wire Diameter (d)
4.01
mm

(0.158 in.)
Max. Extension (L1)
386.590
mm
Spring Rate
2.172
N/mm
Initial Tension (IT)
29.8
N
1150367 | ES-3810-1905-40-M --- Extension Springs - 38.1x190.5x4.01 mm - Steel
Material: Steel    Load at L1: 456.700 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1905-40-M Extension Springs - 38.1x190.5x4.01 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $186.32 AUD
Regular price Sale price $186.32 AUD
Each
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
190.5
mm

(7.5 in.)
Wire Diameter (d)
4.01
mm

(0.158 in.)
Max. Extension (L1)
386.590
mm
1150367 | ES-3810-1905-40-M --- Extension Springs - 38.1x190.5x4.01 mm - Steel
Material: Steel    Spring Rate: 2.172 N/mm    Initial Tension (IT): 29.8 N    Load at L1: 456.700 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1905-40-M Extension Springs - 38.1x190.5x4.01 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $186.32 AUD
Regular price Sale price $186.32 AUD
Each
View the product page first if you are unsure.
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
190.5
mm

(7.5 in.)
Wire Diameter (d)
4.50
mm

(0.177 in.)
Max. Extension (L1)
315.980
mm
Spring Rate
3.940
N/mm
Initial Tension (IT)
48.8
N
1150368 | ES-3810-1905-45-M --- Extension Springs - 38.1x190.5x4.5 mm - Steel
Material: Steel    Load at L1: 542.240 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1905-45-M Extension Springs - 38.1x190.5x4.5 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $221.59 AUD
Regular price Sale price $221.59 AUD
Each
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
190.5
mm

(7.5 in.)
Wire Diameter (d)
4.50
mm

(0.177 in.)
Max. Extension (L1)
315.980
mm
1150368 | ES-3810-1905-45-M --- Extension Springs - 38.1x190.5x4.5 mm - Steel
Material: Steel    Spring Rate: 3.940 N/mm    Initial Tension (IT): 48.8 N    Load at L1: 542.240 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-1905-45-M Extension Springs - 38.1x190.5x4.5 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $221.59 AUD
Regular price Sale price $221.59 AUD
Each
View the product page first if you are unsure.
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
203.2
mm

(8 in.)
Wire Diameter (d)
3.15
mm

(0.124 in.)
Max. Extension (L1)
530.610
mm
Spring Rate
0.578
N/mm
Initial Tension (IT)
18.7
N
1150369 | ES-3810-2032-31-M --- Extension Springs - 38.1x203.2x3.15 mm - Steel
Material: Steel    Load at L1: 207.470 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-2032-31-M Extension Springs - 38.1x203.2x3.15 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $138.95 AUD
Regular price Sale price $138.95 AUD
Each
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
203.2
mm

(8 in.)
Wire Diameter (d)
3.15
mm

(0.124 in.)
Max. Extension (L1)
530.610
mm
1150369 | ES-3810-2032-31-M --- Extension Springs - 38.1x203.2x3.15 mm - Steel
Material: Steel    Spring Rate: 0.578 N/mm    Initial Tension (IT): 18.7 N    Load at L1: 207.470 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-2032-31-M Extension Springs - 38.1x203.2x3.15 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $138.95 AUD
Regular price Sale price $138.95 AUD
Each
View the product page first if you are unsure.
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
203.2
mm

(8 in.)
Wire Diameter (d)
4.01
mm

(0.158 in.)
Max. Extension (L1)
420.120
mm
Spring Rate
1.962
N/mm
Initial Tension (IT)
29.8
N
1150370 | ES-3810-2032-40-M --- Extension Springs - 38.1x203.2x4.01 mm - Steel
Material: Steel    Load at L1: 456.700 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-2032-40-M Extension Springs - 38.1x203.2x4.01 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $197.05 AUD
Regular price Sale price $197.05 AUD
Each
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
203.2
mm

(8 in.)
Wire Diameter (d)
4.01
mm

(0.158 in.)
Max. Extension (L1)
420.120
mm
1150370 | ES-3810-2032-40-M --- Extension Springs - 38.1x203.2x4.01 mm - Steel
Material: Steel    Spring Rate: 1.962 N/mm    Initial Tension (IT): 29.8 N    Load at L1: 456.700 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-2032-40-M Extension Springs - 38.1x203.2x4.01 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $197.05 AUD
Regular price Sale price $197.05 AUD
Each
View the product page first if you are unsure.
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
203.2
mm

(8 in.)
Wire Diameter (d)
4.50
mm

(0.177 in.)
Max. Extension (L1)
341.630
mm
Spring Rate
3.560
N/mm
Initial Tension (IT)
48.8
N
1150371 | ES-3810-2032-45-M --- Extension Springs - 38.1x203.2x4.5 mm - Steel
Material: Steel    Load at L1: 542.240 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-2032-45-M Extension Springs - 38.1x203.2x4.5 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $234.14 AUD
Regular price Sale price $234.14 AUD
Each
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
203.2
mm

(8 in.)
Wire Diameter (d)
4.50
mm

(0.177 in.)
Max. Extension (L1)
341.630
mm
1150371 | ES-3810-2032-45-M --- Extension Springs - 38.1x203.2x4.5 mm - Steel
Material: Steel    Spring Rate: 3.560 N/mm    Initial Tension (IT): 48.8 N    Load at L1: 542.240 N   
Category: Springs - Extension - Music Wire
Part Number: ES-3810-2032-45-M Extension Springs - 38.1x203.2x4.5 mm - Steel
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $234.14 AUD
Regular price Sale price $234.14 AUD
Each
View the product page first if you are unsure.
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
371.0
mm

(14.606 in.)
Wire Diameter (d)
5.00
mm

(0.197 in.)
Initial Tension (IT)
2.9
N
1150395 | ES-3810-3710-50-M --- Extension Springs - 38.1x371x5 mm - Music Wire
Material: Music Wire   
Category: Springs - Extension - Stainless Steel
Part Number: ES-3810-3710-50-M Extension Springs - 38.1x371x5 mm - Music Wire
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $284.68 AUD
Regular price Sale price $284.68 AUD
Each
OD (D0)
38.10
mm

(1.5 in.)
Overall Length (L0)
371.0
mm

(14.606 in.)
Wire Diameter (d)
5.00
mm

(0.197 in.)
1150395 | ES-3810-3710-50-M --- Extension Springs - 38.1x371x5 mm - Music Wire
Material: Music Wire    Initial Tension (IT): 2.9 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-3810-3710-50-M Extension Springs - 38.1x371x5 mm - Music Wire
Out of Stock | Backorder Now | Orders can be expected around Mon, Jul 07, 2025
Regular price $284.68 AUD
Regular price Sale price $284.68 AUD
Each
View the product page first if you are unsure.