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FAQs

Yes, here the two names describe the same springs. This page is called Tension Springs, and its Metrol Product Names say Extension Spring.

Yes, springs with a 200mm free length come in outside diameters that include 22, 27, 30 and 40mm. For example, Metrol 6520 has a 30mm outside diameter and a 5mm wire.

Yes, springs with a 6mm wire come in 36mm and 42mm outside diameters. The 36mm springs, such as Metrol 3873, list an initial force of 171N in their specifications.

Yes, the smallest outside diameter is 17mm, with a 2.5mm wire, in free lengths that include 85, 140 and 260mm. Metrol 6439 pairs the 17mm diameter with an 85mm free length.

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Tension Springs

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Find the right extension spring among over 150 Metrol tension springs, chosen by outside diameter and free length. Both sizes appear in the Product Name, such as Outside Diameter 32mm, Free Length 290mm on Metrol 6376. Outside diameters include 18, 20, 24, 28, 32 and 35mm, and free lengths go up to 360mm. Free lengths step up within a diameter, such as 120, 150, 180, 210, 240 and 270mm at 18mm.

Use the Size Range filter to narrow the outside diameter to 11-25mm or 26-50mm, then the Length filter to pick the free length. The specifications add the wire diameter, extended length, initial force and rate. For example, 6376 lists a 3.5mm wire, a 630mm extended length, a 46N initial force and a rate of 1 N/mm. Wire diameters include 3, 3.5, 4 and 5mm, and the material is given as EN 10270-1-SH.

Search by the Metrol number at the end of the Product Name, such as 3837 for an 18mm spring with a 120mm free length. For a spring with no readable number, send a photo with a rule alongside over WhatsApp on 07754288583. Other springs under Spring, Strut & Hardware include compression springs, clock springs and disc springs.

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FAQs

Yes, here the two names describe the same springs. This page is called Tension Springs, and its Metrol Product Names say Extension Spring.

Yes, springs with a 200mm free length come in outside diameters that include 22, 27, 30 and 40mm. For example, Metrol 6520 has a 30mm outside diameter and a 5mm wire.

Yes, springs with a 6mm wire come in 36mm and 42mm outside diameters. The 36mm springs, such as Metrol 3873, list an initial force of 171N in their specifications.

Yes, the smallest outside diameter is 17mm, with a 2.5mm wire, in free lengths that include 85, 140 and 260mm. Metrol 6439 pairs the 17mm diameter with an 85mm free length.

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