33% Off

Century Spring Corp Steel Extension Spring 21 x 101.6 x 3mm - 2 Pack

Name: Century Spring Corp Steel Extension Spring 21 x 101.6 x 3mm - 2 Pack
Brand: Century Spring Corp
SKU: ING0487958
Price: 34.22 AUD
Availability: InStock

★★★★★

69 reviews · 732+ sold

$34.22 $51.33 -33% OFF

You save: $17.11

Price reduced — was $51.33

7 people bought this in the last week

11 people have this in their cart right now

🔥 88% claimed — only 5 left at this price!

Only 5 left!

Ships in 1-2 business days Australia-wide delivery

Australian Stock Ships from AU warehouses

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The Century Spring Corp 21 x 101.6 x 3mm extension spring is a 2 pack of steel springs that absorb and store energy while resisting pulling forces. Each spring is made from high-grade spring wire and manufactured to commercial tolerances defined by the Spring Manufacturers Institute (SMI).

Material: Steel
Pack quantity: 2
Free length: 101.6mm
Outside diameter: 20.65mm
Inside diameter: 14.554mm
Wire size: 3.048mm
Max deflection: 18.542mm
Standards: Made to ASTM standards

As a tension spring it stretches under load and pulls back to its free length when released, making it a reliable choice for repairs and assemblies that need a controlled return action.

More about this product

The Century Spring Corp 21 x 101.6 x 3mm Extension Spring 2 Pack is designed for various applications requiring reliable energy absorption and resistance to pulling forces. This extension spring is manufactured using high-grade spring wire, adhering to ASTM standards and commercial tolerances as defined by the Spring Manufacturers Institute (SMI). Extension springs are engineered to absorb and store energy, providing resistance against pulling forces.

Material: Steel
Pack quantity: 2
Free length: 101.6mm
Outside diameter: 20.65mm
Wire size: 3.048mm

Questions & Answers

How many springs are in the pack?

This is a 2 pack of extension springs.

What is the free length of the spring?

The free length is 101.6mm.

What material and standard is it made to?

It is made from steel to ASTM standards and to commercial tolerances as defined by the Spring Manufacturers Institute (SMI).

What does an extension spring do?

It absorbs and stores energy while providing resistance to pulling forces, returning to its original length once the load is removed.

Standard Shipping Australia-wide
Ships in 1-2 business days from our Australian warehouses

30-Day Returns
Change your mind? Return within 30 days for a full refund. Item must be unused and in original packaging.

Customer Reviews

4.3 ★★★★☆ 105 reviews

5★

65%

4★

21%

3★

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1★

✓ Fast Delivery ✓ Great Quality ✓ As Described Verified Purchases

Hannah P. 📍 Cairns QLD

★★★★★

1 month ago

✓ Verified Purchase

Worth every cent

Did a lot of comparison shopping before buying here and I have no regrets. Best price I found anywhere and delivery was fast — 3 days to Melbourne. Product feels genuinely premium, not cheap at all. Packaging was solid too, box arrived in perfect shape. Will be back for more.

Thomas R. 📍 Ballarat VIC

★★★★★

1 months ago

✓ Verified Purchase

Does the job well

Century Spring Corp quality is always reliable and this was no exception. Fast delivery too.

Jessica L. 📍 Toowoomba QLD

★★★★★

2 months ago

✓ Verified Purchase

Already bought a second one

Placed the order in the evening and got a shipping notification the next morning. Arrived 2 days later in great condition. Product is well made and does everything it should. Really happy with the whole experience.

Ben A. 📍 Fremantle WA

★★★★★

2 months ago

✓ Verified Purchase

Quick delivery to regional QLD

The Century Spring arrived fast and works perfectly out of the box.

Grace W. 📍 Parramatta NSW

★★★★★

2 months ago

✓ Verified Purchase

Perfect gift — loved it

Bought this as a replacement for one I have had for years and I am glad I upgraded. The new one is noticeably better. Had a tracking number within a few hours of ordering. Packaging was excellent, nothing damaged. Already told a few mates about this site. Great prices and genuinely fast shipping.

Oliver H. 📍 Rockhampton QLD

★★★★★

2 months ago

✓ Verified Purchase

Arrived well packed

The Century Spring is a solid buy. I was a bit unsure about the size from the photos but it is perfect in person. Delivery was faster than expected. Very satisfied with this purchase.