Extension spring with turnable loops

Legend

Dt		Wire diameter
De		Outer diameter
Lo		Free length
nv		No. of active coils
c		Rate (N/mm)
Fo		Initial force
Ln		Maximum permitted extended length for dynamic load
Fo		Spring force in Newtons
s		Deflection (Ln - Lo)
a		Inner diameter of loop

1 kg = 9,80665 Newton

1 N = 0,10197 kg

All dimensions are in mm.

Article code	d	Nw	Di	Lo	R	Material	Price
51300840	2.50 mm	22.00	17.00 mm	85.00	5.90	Verenstaal	€19.68
Tier prices From 5 pieces €14.84 (€14.84 p/st.) p/p. From 10 pieces €11.61 (€11.61 p/st.) p/p. From 20 pieces €10.28 (€10.28 p/st.) p/p. From 30 pieces €9.90 (€9.90 p/st.) p/p. From 50 pieces €9.70 (€9.70 p/st.) p/p. From 75 pieces €9.30 (€9.30 p/st.) p/p. From 100 pieces €8.68 (€8.68 p/st.) p/p. Order 51300840 Tension springs with turnable bolt 2,5X17X85 Not In Stock Total price €19.68 (€19.68 p/st.) Qty More information Lowest price guarantee Delivery within 3-8 working days More than 25 years of technical craftsmanship
51300845	2.50 mm	34.00	17.00 mm	115.00	3.80	Verenstaal	€19.68
Tier prices From 5 pieces €14.84 (€14.84 p/st.) p/p. From 10 pieces €11.61 (€11.61 p/st.) p/p. From 20 pieces €10.28 (€10.28 p/st.) p/p. From 30 pieces €9.90 (€9.90 p/st.) p/p. From 50 pieces €9.70 (€9.70 p/st.) p/p. From 75 pieces €9.30 (€9.30 p/st.) p/p. From 100 pieces €8.68 (€8.68 p/st.) p/p. Order 51300845 Tension springs with turnable bolt 2,5X17X115 Not In Stock Total price €19.68 (€19.68 p/st.) Qty More information Lowest price guarantee Delivery within 3-8 working days More than 25 years of technical craftsmanship
51300850	2.50 mm	46.00	17.00 mm	145.00	2.80	Verenstaal	€20.65
Tier prices From 5 pieces €15.50 (€15.50 p/st.) p/p. From 10 pieces €12.18 (€12.18 p/st.) p/p. From 20 pieces €10.85 (€10.85 p/st.) p/p. From 30 pieces €10.37 (€10.37 p/st.) p/p. From 50 pieces €10.20 (€10.20 p/st.) p/p. From 75 pieces €9.79 (€9.79 p/st.) p/p. From 100 pieces €9.07 (€9.07 p/st.) p/p. Order 51300850 Tension springs with turnable bolt 2,5X17X145 Not In Stock Total price €20.65 (€20.65 p/st.) Qty More information Lowest price guarantee Delivery within 3-8 working days More than 25 years of technical craftsmanship
51300855	2.50 mm	58.00	17.00 mm	175.00	2.30	Verenstaal	€21.31
Tier prices From 4 pieces €17.41 (€17.41 p/st.) p/p. From 7 pieces €14.37 (€14.37 p/st.) p/p. From 10 pieces €11.41 (€11.41 p/st.) p/p. From 75 pieces €10.93 (€10.93 p/st.) p/p. From 100 pieces €9.33 (€9.33 p/st.) p/p. Order 51300855 Tension springs with turnable bolt 2,5X17X175 Not In Stock Total price €21.31 (€21.31 p/st.) Qty More information Lowest price guarantee Delivery within 3-8 working days More than 25 years of technical craftsmanship
51300860	2.50 mm	70.00	17.00 mm	205.00	1.90	Verenstaal	€21.31
Tier prices From 4 pieces €17.41 (€17.41 p/st.) p/p. From 7 pieces €14.37 (€14.37 p/st.) p/p. From 10 pieces €11.41 (€11.41 p/st.) p/p. From 75 pieces €10.93 (€10.93 p/st.) p/p. From 100 pieces €9.33 (€9.33 p/st.) p/p. Order 51300860 Tension springs with turnable bolt 2,5X17X205 Not In Stock Total price €21.31 (€21.31 p/st.) Qty More information Lowest price guarantee Delivery within 3-8 working days More than 25 years of technical craftsmanship
51300865	2.50 mm	82.00	17.00 mm	235.00	1.60	Verenstaal	€23.30
Tier prices From 4 pieces €19.13 (€19.13 p/st.) p/p. From 7 pieces €15.79 (€15.79 p/st.) p/p. From 10 pieces €12.46 (€12.46 p/st.) p/p. From 75 pieces €11.96 (€11.96 p/st.) p/p. From 100 pieces €10.23 (€10.23 p/st.) p/p. Order 51300865 Tension springs with turnable bolt 2,5X17X235 Not In Stock Total price €23.30 (€23.30 p/st.) Qty More information Lowest price guarantee Delivery within 3-8 working days More than 25 years of technical craftsmanship
51300870	2.50 mm	22.00	20.00 mm	85.00	3.40	Verenstaal	€19.68
Tier prices From 5 pieces €14.84 (€14.84 p/st.) p/p. From 10 pieces €11.61 (€11.61 p/st.) p/p. From 20 pieces €10.28 (€10.28 p/st.) p/p. From 30 pieces €9.90 (€9.90 p/st.) p/p. From 50 pieces €9.70 (€9.70 p/st.) p/p. From 75 pieces €9.30 (€9.30 p/st.) p/p. From 100 pieces €8.68 (€8.68 p/st.) p/p. Order 51300870 Tension springs with turnable bolt 2,5X20X85 Not In Stock Total price €19.68 (€19.68 p/st.) Qty More information Lowest price guarantee Delivery within 3-8 working days More than 25 years of technical craftsmanship
51300875	2.50 mm	34.00	20.00 mm	115.00	2.20	Verenstaal	€20.65
Tier prices From 5 pieces €15.50 (€15.50 p/st.) p/p. From 10 pieces €12.18 (€12.18 p/st.) p/p. From 20 pieces €10.85 (€10.85 p/st.) p/p. From 30 pieces €10.37 (€10.37 p/st.) p/p. From 50 pieces €10.20 (€10.20 p/st.) p/p. From 75 pieces €9.79 (€9.79 p/st.) p/p. From 100 pieces €9.07 (€9.07 p/st.) p/p. Order 51300875 Tension springs with turnable bolt 2,5X20X115 Not In Stock Total price €20.65 (€20.65 p/st.) Qty More information Lowest price guarantee Delivery within 3-8 working days More than 25 years of technical craftsmanship
51300880	2.50 mm	46.00	20.00 mm	145.00	1.60	Verenstaal	€20.65
Tier prices From 5 pieces €15.50 (€15.50 p/st.) p/p. From 10 pieces €12.18 (€12.18 p/st.) p/p. From 20 pieces €10.85 (€10.85 p/st.) p/p. From 30 pieces €10.37 (€10.37 p/st.) p/p. From 50 pieces €10.20 (€10.20 p/st.) p/p. From 75 pieces €9.79 (€9.79 p/st.) p/p. From 100 pieces €9.07 (€9.07 p/st.) p/p. Order 51300880 Tension springs with turnable bolt 2,5X20X145 Not In Stock Total price €20.65 (€20.65 p/st.) Qty More information Lowest price guarantee Delivery within 3-8 working days More than 25 years of technical craftsmanship
51300885	2.50 mm	58.00	20.00 mm	175.00	1.30	Verenstaal	€21.31
Tier prices From 4 pieces €17.41 (€17.41 p/st.) p/p. From 7 pieces €14.37 (€14.37 p/st.) p/p. From 10 pieces €11.41 (€11.41 p/st.) p/p. From 75 pieces €10.93 (€10.93 p/st.) p/p. From 100 pieces €9.33 (€9.33 p/st.) p/p. Order 51300885 Tension springs with turnable bolt 2,5X20X175 Not In Stock Total price €21.31 (€21.31 p/st.) Qty More information Lowest price guarantee Delivery within 3-8 working days More than 25 years of technical craftsmanship
51300890	2.50 mm	70.00	20.00 mm	205.00	1.10	Verenstaal	€21.31
Tier prices From 4 pieces €17.41 (€17.41 p/st.) p/p. From 7 pieces €14.37 (€14.37 p/st.) p/p. From 10 pieces €11.41 (€11.41 p/st.) p/p. From 75 pieces €10.93 (€10.93 p/st.) p/p. From 100 pieces €9.33 (€9.33 p/st.) p/p. Order 51300890 Tension springs with turnable bolt 2,5X20X205 Not In Stock Total price €21.31 (€21.31 p/st.) Qty More information Lowest price guarantee Delivery within 3-8 working days More than 25 years of technical craftsmanship
51300895	2.50 mm	82.00	20.00 mm	235.00	0.91	Verenstaal	€23.30
Tier prices From 4 pieces €19.13 (€19.13 p/st.) p/p. From 7 pieces €15.79 (€15.79 p/st.) p/p. From 10 pieces €12.46 (€12.46 p/st.) p/p. From 75 pieces €11.96 (€11.96 p/st.) p/p. From 100 pieces €10.23 (€10.23 p/st.) p/p. Order 51300895 Tension springs with turnable bolt 2,5X20X235 Not In Stock Total price €23.30 (€23.30 p/st.) Qty More information Lowest price guarantee Delivery within 3-8 working days More than 25 years of technical craftsmanship

Ordering extension spring with turnable loops online

Extension springs with normal loops or hooks should only be used for up to 60% of the permitted tension, as the loop or the hook of the spring is weaker than the rest of the spring. In order to be able to use the spring to its maximum, without running the risk of loop breaks, you can instead use this series of extension springs with hardened loops, which have tapered ends.

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Extension spring with turnable loops

Legend

Order 51300840

Order 51300845

Order 51300850

Order 51300855

Order 51300860

Order 51300865

Order 51300870

Order 51300875

Order 51300880

Order 51300885

Order 51300890

Order 51300895

Ordering extension spring with turnable loops online

Need advice?