
Flyline
The Century Spring Corp 12 x 114.3 x 1mm extension spring is a 2 pack of steel springs that absorb and store energy while resisting pulling forces. Each spring is manufactured from high-grade spring wire to commercial tolerances defined by the Spring Manufacturers Institute (SMI).
As a tension spring, it extends under load and pulls back to its free length when released, suiting assemblies and repairs that call for a reliable return action.
The Century Spring Corp 12 x 114.3 x 1mm Extension Spring 2 Pack is a set of durable extension springs designed to absorb and store energy while providing resistance to pulling forces. This extension spring pack from Century Spring Corp is manufactured using high-grade spring wire and adheres to ASTM standards, ensuring reliability and performance. Designed for various applications, these springs are capable of withstanding significant tension.
This is a 2 pack of extension springs.
The free length is 114.3mm.
It is made from steel to ASTM standards and to commercial tolerances as defined by the Spring Manufacturers Institute (SMI).
It absorbs and stores energy while providing resistance to pulling forces, returning to its original length once the load is removed.
Better than expected
No issues at all. Fast delivery and exactly as described.
Great value for money
Spent a while looking for the right Century Spring and this kept coming up as the best value. I can see why — quality is impressive for the price. Delivery took just 2 days to Townsville which is great. Packaging was solid and everything intact. My partner and I both use it daily now. Highly recommended.
One of my best online buys
Quality product at a fair price. Delivered quickly. Happy.
Happy with SuperSaver AU
Have bought Century Spring Corp before and always been happy. Great price on SuperSaver AU and delivery was fast. Arrived perfectly packaged. Works flawlessly from day one.
Fast delivery and perfect condition
Fast delivery and exactly what I ordered. Very happy with this.
Outstanding value
Bought this on a bit of an impulse after seeing it on the site and really glad I did. Quality is much better than the price suggests — feels premium and well made. Ordered Monday and it arrived Wednesday in Sydney. Nothing loose or damaged. A few people have asked where I got it.

