| OD (D0) | Approx. Overall Length (L0) | Wire Diameter (d) | Max. Extension (L1) | Spring Rate | Initial Tension (IT) |
Indicative Image |
|---|---|---|---|---|---|---|
| Extension Springs - 3.18x914x0.31 mm Stainless Steel - Steel - None Spring | ||||||
|
OD (D0)
3.18
mm |
Approx. Overall Length (L0)
914.0
mm |
Wire Diameter (d)
0.31
mm |
Spring Rate
0.04
N/mm |
Initial Tension (IT)
0.0
N |
|
|
| Material: Steel - None | ||||||
|
Part Number: ES-0318-9140-03-S2 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jun 27, 2026 Regular price
$27.50 AUD
Regular price
Unit price
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
| OD (D0) | Approx. Overall Length (L0) | Wire Diameter (d) | Max. Extension (L1) |
Indicative Image |
||
| Extension Springs - 3.18x914x0.31 mm Stainless Steel - Steel - None Spring | ||||||
|
OD (D0)
3.18
mm |
Approx. Overall Length (L0)
914.0
mm |
Wire Diameter (d)
0.31
mm |
|
|||
| Material: Steel - None Spring Rate: 0.04 N/mm Initial Tension (IT): 0.0 N | ||||||
|
Part Number: ES-0318-9140-03-S2 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jun 27, 2026 Regular price
$27.50 AUD
Regular price
Unit price
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Extension Springs - 3.18x914x0.36 mm Stainless Steel - Steel - None Spring | ||||||
|
OD (D0)
3.18
mm |
Approx. Overall Length (L0)
914.0
mm |
Wire Diameter (d)
0.36
mm |
Spring Rate
0.10
N/mm |
Initial Tension (IT)
0.1
N |
|
|
| Material: Steel - None | ||||||
|
Part Number: ES-0318-9140-035-S2 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jun 27, 2026 Regular price
$22.50 AUD
Regular price
Unit price
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
| Extension Springs - 3.18x914x0.36 mm Stainless Steel - Steel - None Spring | ||||||
|
OD (D0)
3.18
mm |
Approx. Overall Length (L0)
914.0
mm |
Wire Diameter (d)
0.36
mm |
|
|||
| Material: Steel - None Spring Rate: 0.10 N/mm Initial Tension (IT): 0.1 N | ||||||
|
Part Number: ES-0318-9140-035-S2 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jun 27, 2026 Regular price
$22.50 AUD
Regular price
Unit price
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Extension Springs - 3.18x914x0.41 mm Stainless Steel - Steel - None Spring | ||||||
|
OD (D0)
3.18
mm |
Approx. Overall Length (L0)
914.0
mm |
Wire Diameter (d)
0.41
mm |
Spring Rate
0.21
N/mm |
Initial Tension (IT)
0.2
N |
|
|
| Material: Steel - None | ||||||
|
Part Number: ES-0318-0914-04-S2 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jun 27, 2026 Regular price
$23.05 AUD
Regular price
Unit price
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
| Extension Springs - 3.18x914x0.41 mm Stainless Steel - Steel - None Spring | ||||||
|
OD (D0)
3.18
mm |
Approx. Overall Length (L0)
914.0
mm |
Wire Diameter (d)
0.41
mm |
|
|||
| Material: Steel - None Spring Rate: 0.21 N/mm Initial Tension (IT): 0.2 N | ||||||
|
Part Number: ES-0318-0914-04-S2 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jun 27, 2026 Regular price
$23.05 AUD
Regular price
Unit price
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Extension Springs - 3.18x914x0.58 mm Stainless Steel - Steel - None Spring | ||||||
|
OD (D0)
3.18
mm |
Approx. Overall Length (L0)
914.0
mm |
Wire Diameter (d)
0.58
mm |
Spring Rate
1.52
N/mm |
Initial Tension (IT)
1.5
N |
|
|
| Material: Steel - None | ||||||
|
Part Number: ES-0318-9140-06-S2 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jun 27, 2026 Regular price
$31.14 AUD
Regular price
Unit price
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
| Extension Springs - 3.18x914x0.58 mm Stainless Steel - Steel - None Spring | ||||||
|
OD (D0)
3.18
mm |
Approx. Overall Length (L0)
914.0
mm |
Wire Diameter (d)
0.58
mm |
|
|||
| Material: Steel - None Spring Rate: 1.52 N/mm Initial Tension (IT): 1.5 N | ||||||
|
Part Number: ES-0318-9140-06-S2 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jun 27, 2026 Regular price
$31.14 AUD
Regular price
Unit price
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Extension Springs - 3.5x11.1x0.7 mm - Stainless Steel 302/304 Similar to A2, 18-8 Spring | ||||||
|
OD (D0)
3.50
mm |
Approx. Overall Length (L0)
11.1
mm |
Wire Diameter (d)
0.70
mm |
Max. Extension (L1)
13.46
mm |
Spring Rate
9.25
N/mm |
Initial Tension (IT)
3.7
N |
|
|
Material: Stainless Steel 302/304 (Similar to A2 or 18-8)
Load at L1: 25.58 N
Deleted Item. Available while stocks last. |
||||||
|
Part Number: ES-0350-0111-07-S2 (Each)
1 Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price
$27.21 AUD
Regular price
Unit price
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
| Extension Springs - 3.5x11.1x0.7 mm - Stainless Steel 302/304 Similar to A2, 18-8 Spring | ||||||
|
OD (D0)
3.50
mm |
Approx. Overall Length (L0)
11.1
mm |
Wire Diameter (d)
0.70
mm |
Max. Extension (L1)
13.46
mm |
|
||
|
Material: Stainless Steel 302/304 (Similar to A2 or 18-8)
Spring Rate: 9.25 N/mm
Initial Tension (IT): 3.7 N
Load at L1: 25.58 N
Deleted Item. Available while stocks last. |
||||||
|
Part Number: ES-0350-0111-07-S2 (Each)
1 Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price
$27.21 AUD
Regular price
Unit price
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Extension Springs - 3.96x38.1x0.51 mm Stainless Steel - Steel - Zinc Spring | ||||||
|
OD (D0)
3.96
mm |
Approx. Overall Length (L0)
38.1
mm |
Wire Diameter (d)
0.51
mm |
Spring Rate
0.25
N/mm |
Initial Tension (IT)
0.3
N |
|
|
| Material: Steel - Zinc | ||||||
|
Part Number: ES-0396-0381-05-M (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jun 27, 2026 Regular price
$4.86 AUD
Regular price
Unit price
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
| Extension Springs - 3.96x38.1x0.51 mm Stainless Steel - Steel - Zinc Spring | ||||||
|
OD (D0)
3.96
mm |
Approx. Overall Length (L0)
38.1
mm |
Wire Diameter (d)
0.51
mm |
|
|||
| Material: Steel - Zinc Spring Rate: 0.25 N/mm Initial Tension (IT): 0.3 N | ||||||
|
Part Number: ES-0396-0381-05-M (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jun 27, 2026 Regular price
$4.86 AUD
Regular price
Unit price
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Extension Springs - 3.96x152.4x0.51 mm Music Wire - Steel Spring | ||||||
|
OD (D0)
3.96
mm |
Approx. Overall Length (L0)
152.4
mm |
Wire Diameter (d)
0.51
mm |
Spring Rate
0.06
N/mm |
Initial Tension (IT)
0.1
N |
|
|
| Material: Steel | ||||||
|
Part Number: ES-0396-1524-05-M (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jun 27, 2026 Regular price
$16.14 AUD
Regular price
Unit price
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
| Extension Springs - 3.96x152.4x0.51 mm Music Wire - Steel Spring | ||||||
|
OD (D0)
3.96
mm |
Approx. Overall Length (L0)
152.4
mm |
Wire Diameter (d)
0.51
mm |
|
|||
| Material: Steel Spring Rate: 0.06 N/mm Initial Tension (IT): 0.1 N | ||||||
|
Part Number: ES-0396-1524-05-M (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jun 27, 2026 Regular price
$16.14 AUD
Regular price
Unit price
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Extension Springs - 3.96x279.4x0.41 mm Music Wire - Steel Spring | ||||||
|
OD (D0)
3.96
mm |
Approx. Overall Length (L0)
279.4
mm |
Wire Diameter (d)
0.41
mm |
Spring Rate
0.01
N/mm |
Initial Tension (IT)
0.0
N |
|
|
| Material: Steel | ||||||
|
Part Number: ES-0396-2794-04-M (Each)
9 Available Now | Further orders can be expected around Sat, Jun 27, 2026 Regular price
$18.05 AUD
Regular price
Unit price
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
| Extension Springs - 3.96x279.4x0.41 mm Music Wire - Steel Spring | ||||||
|
OD (D0)
3.96
mm |
Approx. Overall Length (L0)
279.4
mm |
Wire Diameter (d)
0.41
mm |
|
|||
| Material: Steel Spring Rate: 0.01 N/mm Initial Tension (IT): 0.0 N | ||||||
|
Part Number: ES-0396-2794-04-M (Each)
9 Available Now | Further orders can be expected around Sat, Jun 27, 2026 Regular price
$18.05 AUD
Regular price
Unit price
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Extension Springs - 3.96x279.4x0.61 mm Music Wire - Steel Spring | ||||||
|
OD (D0)
3.96
mm |
Approx. Overall Length (L0)
279.4
mm |
Wire Diameter (d)
0.61
mm |
Spring Rate
0.08
N/mm |
Initial Tension (IT)
0.1
N |
|
|
| Material: Steel | ||||||
|
Part Number: ES-0396-2794-06-M (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jun 27, 2026 Regular price
$5.95 AUD
Regular price
Unit price
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
| Extension Springs - 3.96x279.4x0.61 mm Music Wire - Steel Spring | ||||||
|
OD (D0)
3.96
mm |
Approx. Overall Length (L0)
279.4
mm |
Wire Diameter (d)
0.61
mm |
|
|||
| Material: Steel Spring Rate: 0.08 N/mm Initial Tension (IT): 0.1 N | ||||||
|
Part Number: ES-0396-2794-06-M (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jun 27, 2026 Regular price
$5.95 AUD
Regular price
Unit price
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Extension Springs - 4x15x0.35 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring | ||||||
|
OD (D0)
4.00
mm |
Approx. Overall Length (L0)
15
mm |
Wire Diameter (d)
0.350
mm |
Max. Extension (L1)
29.60
mm |
Spring Rate
0.14
N/mm |
Initial Tension (IT)
0.2
N |
|
| Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80 Load at L1: 2.26 N | ||||||
|
Part Number: ES-0400-0150-035-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026 Regular price
$7.32 AUD
Regular price
Unit price
per
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties |
||||||
| Extension Springs - 4x15x0.35 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring | ||||||
|
OD (D0)
4.00
mm |
Approx. Overall Length (L0)
15
mm |
Wire Diameter (d)
0.350
mm |
Max. Extension (L1)
29.60
mm |
|
||
| Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80 Spring Rate: 0.14 N/mm Initial Tension (IT): 0.2 N Load at L1: 2.26 N | ||||||
|
Part Number: ES-0400-0150-035-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026 Regular price
$7.32 AUD
Regular price
Unit price
per
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Extension Springs - 4x15x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring | ||||||
|
OD (D0)
4.00
mm |
Approx. Overall Length (L0)
15
mm |
Wire Diameter (d)
0.400
mm |
Max. Extension (L1)
25.00
mm |
Spring Rate
0.26
N/mm |
Initial Tension (IT)
0.6
N |
|
| Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80 Load at L1: 3.24 N | ||||||
|
Part Number: ES-0400-0150-04-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026 Regular price
$7.77 AUD
Regular price
Unit price
per
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties |
||||||
| Extension Springs - 4x15x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring | ||||||
|
OD (D0)
4.00
mm |
Approx. Overall Length (L0)
15
mm |
Wire Diameter (d)
0.400
mm |
Max. Extension (L1)
25.00
mm |
|
||
| Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80 Spring Rate: 0.26 N/mm Initial Tension (IT): 0.6 N Load at L1: 3.24 N | ||||||
|
Part Number: ES-0400-0150-04-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026 Regular price
$7.77 AUD
Regular price
Unit price
per
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Extension Springs - 4x15x0.45 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring | ||||||
|
OD (D0)
4.00
mm |
Approx. Overall Length (L0)
15
mm |
Wire Diameter (d)
0.450
mm |
Max. Extension (L1)
22.50
mm |
Spring Rate
0.51
N/mm |
Initial Tension (IT)
1.0
N |
|
| Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80 Load at L1: 4.81 N | ||||||
|
Part Number: ES-0400-0150-045-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026 Regular price
$7.77 AUD
Regular price
Unit price
per
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties |
||||||
| Extension Springs - 4x15x0.45 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring | ||||||
|
OD (D0)
4.00
mm |
Approx. Overall Length (L0)
15
mm |
Wire Diameter (d)
0.450
mm |
Max. Extension (L1)
22.50
mm |
|
||
| Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80 Spring Rate: 0.51 N/mm Initial Tension (IT): 1.0 N Load at L1: 4.81 N | ||||||
|
Part Number: ES-0400-0150-045-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026 Regular price
$7.77 AUD
Regular price
Unit price
per
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Extension Springs - 4x15x0.5 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring | ||||||
|
OD (D0)
4.00
mm |
Approx. Overall Length (L0)
15
mm |
Wire Diameter (d)
0.500
mm |
Max. Extension (L1)
21.50
mm |
Spring Rate
0.78
N/mm |
Initial Tension (IT)
1.2
N |
|
| Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80 Load at L1: 6.37 N | ||||||
|
Part Number: ES-0400-0150-05-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026 Regular price
$9.14 AUD
Regular price
Unit price
per
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties |
||||||
| Extension Springs - 4x15x0.5 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring | ||||||
|
OD (D0)
4.00
mm |
Approx. Overall Length (L0)
15
mm |
Wire Diameter (d)
0.500
mm |
Max. Extension (L1)
21.50
mm |
|
||
| Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80 Spring Rate: 0.78 N/mm Initial Tension (IT): 1.2 N Load at L1: 6.37 N | ||||||
|
Part Number: ES-0400-0150-05-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026 Regular price
$9.14 AUD
Regular price
Unit price
per
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Extension Springs - 4x15x0.6 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring | ||||||
|
OD (D0)
4.00
mm |
Approx. Overall Length (L0)
15
mm |
Wire Diameter (d)
0.600
mm |
Max. Extension (L1)
19.00
mm |
Spring Rate
2.16
N/mm |
Initial Tension (IT)
2.6
N |
|
| Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80 Load at L1: 11.10 N | ||||||
|
Part Number: ES-0400-0150-06-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026 Regular price
$9.14 AUD
Regular price
Unit price
per
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties |
||||||
| Extension Springs - 4x15x0.6 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring | ||||||
|
OD (D0)
4.00
mm |
Approx. Overall Length (L0)
15
mm |
Wire Diameter (d)
0.600
mm |
Max. Extension (L1)
19.00
mm |
|
||
| Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80 Spring Rate: 2.16 N/mm Initial Tension (IT): 2.6 N Load at L1: 11.10 N | ||||||
|
Part Number: ES-0400-0150-06-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026 Regular price
$9.14 AUD
Regular price
Unit price
per
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Extension Springs - 4x20x0.35 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring | ||||||
|
OD (D0)
4.00
mm |
Approx. Overall Length (L0)
20
mm |
Wire Diameter (d)
0.350
mm |
Max. Extension (L1)
44.10
mm |
Spring Rate
0.08
N/mm |
Initial Tension (IT)
0.2
N |
|
| Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80 Load at L1: 2.26 N | ||||||
|
Part Number: ES-0400-0200-035-S4 (PK-5)
3 units (15 pcs) Available Now | Further orders can be expected around Sat, Jul 11, 2026 Regular price
$4.86 AUD
Regular price
Unit price
per
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties |
||||||
| Extension Springs - 4x20x0.35 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring | ||||||
|
OD (D0)
4.00
mm |
Approx. Overall Length (L0)
20
mm |
Wire Diameter (d)
0.350
mm |
Max. Extension (L1)
44.10
mm |
|
||
| Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80 Spring Rate: 0.08 N/mm Initial Tension (IT): 0.2 N Load at L1: 2.26 N | ||||||
|
Part Number: ES-0400-0200-035-S4 (PK-5)
3 units (15 pcs) Available Now | Further orders can be expected around Sat, Jul 11, 2026 Regular price
$4.86 AUD
Regular price
Unit price
per
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Extension Springs - 4x20x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring | ||||||
|
OD (D0)
4.00
mm |
Approx. Overall Length (L0)
20
mm |
Wire Diameter (d)
0.400
mm |
Max. Extension (L1)
36.80
mm |
Spring Rate
0.16
N/mm |
Initial Tension (IT)
0.6
N |
|
| Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80 Load at L1: 3.24 N | ||||||
|
Part Number: ES-0400-0200-04-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026 Regular price
$7.95 AUD
Regular price
Unit price
per
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties |
||||||
| Extension Springs - 4x20x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring | ||||||
|
OD (D0)
4.00
mm |
Approx. Overall Length (L0)
20
mm |
Wire Diameter (d)
0.400
mm |
Max. Extension (L1)
36.80
mm |
|
||
| Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80 Spring Rate: 0.16 N/mm Initial Tension (IT): 0.6 N Load at L1: 3.24 N | ||||||
|
Part Number: ES-0400-0200-04-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026 Regular price
$7.95 AUD
Regular price
Unit price
per
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Extension Springs - 4x20x0.45 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring | ||||||
|
OD (D0)
4.00
mm |
Approx. Overall Length (L0)
20
mm |
Wire Diameter (d)
0.450
mm |
Max. Extension (L1)
32.20
mm |
Spring Rate
0.31
N/mm |
Initial Tension (IT)
1.0
N |
|
| Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80 Load at L1: 4.81 N | ||||||
|
Part Number: ES-0400-0200-045-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026 Regular price
$9.50 AUD
Regular price
Unit price
per
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties |
||||||
| Extension Springs - 4x20x0.45 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring | ||||||
|
OD (D0)
4.00
mm |
Approx. Overall Length (L0)
20
mm |
Wire Diameter (d)
0.450
mm |
Max. Extension (L1)
32.20
mm |
|
||
| Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80 Spring Rate: 0.31 N/mm Initial Tension (IT): 1.0 N Load at L1: 4.81 N | ||||||
|
Part Number: ES-0400-0200-045-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026 Regular price
$9.50 AUD
Regular price
Unit price
per
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Extension Springs - 4x20x0.5 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring | ||||||
|
OD (D0)
4.00
mm |
Approx. Overall Length (L0)
20
mm |
Wire Diameter (d)
0.500
mm |
Max. Extension (L1)
30.20
mm |
Spring Rate
0.49
N/mm |
Initial Tension (IT)
1.2
N |
|
| Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80 Load at L1: 6.37 N | ||||||
|
Part Number: ES-0400-0200-05-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026 Regular price
$9.23 AUD
Regular price
Unit price
per
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties |
||||||
| Extension Springs - 4x20x0.5 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring | ||||||
|
OD (D0)
4.00
mm |
Approx. Overall Length (L0)
20
mm |
Wire Diameter (d)
0.500
mm |
Max. Extension (L1)
30.20
mm |
|
||
| Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80 Spring Rate: 0.49 N/mm Initial Tension (IT): 1.2 N Load at L1: 6.37 N | ||||||
|
Part Number: ES-0400-0200-05-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026 Regular price
$9.23 AUD
Regular price
Unit price
per
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Extension Springs - 4x20x0.6 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring | ||||||
|
OD (D0)
4.00
mm |
Approx. Overall Length (L0)
20
mm |
Wire Diameter (d)
0.600
mm |
Max. Extension (L1)
26.40
mm |
Spring Rate
1.37
N/mm |
Initial Tension (IT)
2.6
N |
|
| Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80 Load at L1: 11.10 N | ||||||
|
Part Number: ES-0400-0200-06-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026 Regular price
$9.50 AUD
Regular price
Unit price
per
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties |
||||||
| Extension Springs - 4x20x0.6 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring | ||||||
|
OD (D0)
4.00
mm |
Approx. Overall Length (L0)
20
mm |
Wire Diameter (d)
0.600
mm |
Max. Extension (L1)
26.40
mm |
|
||
| Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80 Spring Rate: 1.37 N/mm Initial Tension (IT): 2.6 N Load at L1: 11.10 N | ||||||
|
Part Number: ES-0400-0200-06-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026 Regular price
$9.50 AUD
Regular price
Unit price
per
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Extension Springs - 4x25x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring | ||||||
|
OD (D0)
4.00
mm |
Approx. Overall Length (L0)
25
mm |
Wire Diameter (d)
0.400
mm |
Max. Extension (L1)
47.50
mm |
Spring Rate
0.12
N/mm |
Initial Tension (IT)
0.6
N |
|
| Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80 Load at L1: 3.24 N | ||||||
|
Part Number: ES-0400-0250-04-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026 Regular price
$9.50 AUD
Regular price
Unit price
per
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties |
||||||
| Extension Springs - 4x25x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring | ||||||
|
OD (D0)
4.00
mm |
Approx. Overall Length (L0)
25
mm |
Wire Diameter (d)
0.400
mm |
Max. Extension (L1)
47.50
mm |
|
||
| Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80 Spring Rate: 0.12 N/mm Initial Tension (IT): 0.6 N Load at L1: 3.24 N | ||||||
|
Part Number: ES-0400-0250-04-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026 Regular price
$9.50 AUD
Regular price
Unit price
per
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Extension Springs - 4x25x0.45 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring | ||||||
|
OD (D0)
4.00
mm |
Approx. Overall Length (L0)
25
mm |
Wire Diameter (d)
0.450
mm |
Max. Extension (L1)
41.90
mm |
Spring Rate
0.23
N/mm |
Initial Tension (IT)
1.0
N |
|
| Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80 Load at L1: 4.81 N | ||||||
|
Part Number: ES-0400-0250-045-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026 Regular price
$8.23 AUD
Regular price
Unit price
per
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties |
||||||
| Extension Springs - 4x25x0.45 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring | ||||||
|
OD (D0)
4.00
mm |
Approx. Overall Length (L0)
25
mm |
Wire Diameter (d)
0.450
mm |
Max. Extension (L1)
41.90
mm |
|
||
| Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80 Spring Rate: 0.23 N/mm Initial Tension (IT): 1.0 N Load at L1: 4.81 N | ||||||
|
Part Number: ES-0400-0250-045-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026 Regular price
$8.23 AUD
Regular price
Unit price
per
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Extension Springs - 4x25x0.5 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring | ||||||
|
OD (D0)
4.00
mm |
Approx. Overall Length (L0)
25
mm |
Wire Diameter (d)
0.500
mm |
Max. Extension (L1)
38.60
mm |
Spring Rate
0.39
N/mm |
Initial Tension (IT)
1.2
N |
|
| Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80 Load at L1: 6.37 N | ||||||
|
Part Number: ES-0400-0250-05-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026 Regular price
$9.50 AUD
Regular price
Unit price
per
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties |
||||||
| Extension Springs - 4x25x0.5 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring | ||||||
|
OD (D0)
4.00
mm |
Approx. Overall Length (L0)
25
mm |
Wire Diameter (d)
0.500
mm |
Max. Extension (L1)
38.60
mm |
|
||
| Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80 Spring Rate: 0.39 N/mm Initial Tension (IT): 1.2 N Load at L1: 6.37 N | ||||||
|
Part Number: ES-0400-0250-05-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026 Regular price
$9.50 AUD
Regular price
Unit price
per
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Extension Springs - 4x30x0.35 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring | ||||||
|
OD (D0)
4.00
mm |
Approx. Overall Length (L0)
30
mm |
Wire Diameter (d)
0.350
mm |
Max. Extension (L1)
72.70
mm |
Spring Rate
0.05
N/mm |
Initial Tension (IT)
0.2
N |
|
| Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80 Load at L1: 2.26 N | ||||||
|
Part Number: ES-0400-0300-035-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026 Regular price
$10.32 AUD
Regular price
Unit price
per
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties |
||||||
| Extension Springs - 4x30x0.35 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring | ||||||
|
OD (D0)
4.00
mm |
Approx. Overall Length (L0)
30
mm |
Wire Diameter (d)
0.350
mm |
Max. Extension (L1)
72.70
mm |
|
||
| Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80 Spring Rate: 0.05 N/mm Initial Tension (IT): 0.2 N Load at L1: 2.26 N | ||||||
|
Part Number: ES-0400-0300-035-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026 Regular price
$10.32 AUD
Regular price
Unit price
per
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Extension Springs - 4x30x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring | ||||||
|
OD (D0)
4.00
mm |
Approx. Overall Length (L0)
30
mm |
Wire Diameter (d)
0.400
mm |
Max. Extension (L1)
58.40
mm |
Spring Rate
0.09
N/mm |
Initial Tension (IT)
0.6
N |
|
| Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80 Load at L1: 3.24 N | ||||||
|
Part Number: ES-0400-0300-04-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026 Regular price
$10.68 AUD
Regular price
Unit price
per
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties |
||||||
| Extension Springs - 4x30x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring | ||||||
|
OD (D0)
4.00
mm |
Approx. Overall Length (L0)
30
mm |
Wire Diameter (d)
0.400
mm |
Max. Extension (L1)
58.40
mm |
|
||
| Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80 Spring Rate: 0.09 N/mm Initial Tension (IT): 0.6 N Load at L1: 3.24 N | ||||||
|
Part Number: ES-0400-0300-04-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026 Regular price
$10.68 AUD
Regular price
Unit price
per
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
