RS PRO Stainless Steel Extension Spring, 35 mm x 7 mm OD
- RS Stock No.:
- 821-504
- Distrelec Article No.:
- 304-17-853
- Manufacturer:
- RS PRO
Subtotal (1 pack of 10 units)*
PHP460.85
(exc. VAT)
PHP516.15
(inc. VAT)
FREE delivery for orders over ₱3,000.00
In Stock
- Plus 2,700 unit(s) shipping from May 04, 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per Unit | Per Pack* |
|---|---|---|
| 10 + | PHP46.085 | PHP460.85 |
*price indicative
- RS Stock No.:
- 821-504
- Distrelec Article No.:
- 304-17-853
- Manufacturer:
- RS PRO
Specifications
Technical data sheets
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | RS PRO | |
| Material | Stainless Steel | |
| Product Type | Extension Spring | |
| Free Length | 35mm | |
| Maximum Extended Length | 101.5mm | |
| Outside Diameter | 7mm | |
| Wire Diameter | 0.63mm | |
| Initial Tension | 1N | |
| Spring Rate | 0.13N/mm | |
| Standards/Approvals | BS 1408 CR3, DIN 17223, RoHS | |
| Select all | ||
|---|---|---|
Brand RS PRO | ||
Material Stainless Steel | ||
Product Type Extension Spring | ||
Free Length 35mm | ||
Maximum Extended Length 101.5mm | ||
Outside Diameter 7mm | ||
Wire Diameter 0.63mm | ||
Initial Tension 1N | ||
Spring Rate 0.13N/mm | ||
Standards/Approvals BS 1408 CR3, DIN 17223, RoHS | ||
RS PRO Stainless-Steel Extension Spring, 35 mm x 7 mm
The Industrial Revolution has brought many useful parts that are still relevant and useful in the 21st century. One of them is Extension Spring, allowing day-to-day tasks to be efficient and safe.
Before you decide which Extension Spring is right for you (hook or loop type, initial tension parameters, material like stainless steel or steel, etc.), there are some key factors to be considered. Our brand brings you a wide variety and high-quality material type, so that you can purchase with confidence.
Today, we are proudly introducing our own branded RS PRO Stainless-Steel Extension Spring, knows as Tension Spring, manufactured from high tensile strength piano/music, with a right-hand (clockwise) helix and looped ends.
Their uniqueness lies in an ability to absorb and store energy, providing resistance to a pulling force. Our side hook Spring provides initial tension of 1 N whereas the spring rate gives 0.13 N / mm allowing the maximum extended length of 101.50 mm.
Taking control seriously in selecting, testing and approving Extension Springs is our priority to bring you the full potential for your BIG or small project.
Features and Benefits
Applications
Extension Springs have their place in commercial and domestic use, such as:
Frequently asked questions
What is the approximate life expectancy for typical Extension Spring?
Like anything else, Extension Springs have their life limits, which is usually between 7 up to 9 years.
Why RS PRO?
RS PRO is our own-brand range of great-value products. Each part of every RS PRO product is stringently tested against demanding industry standards. We give it our seal of approval only when we're confident of exceptional quality. That's why RS PRO is trusted by engineers worldwide.
Standards
Material to DIN 17224 No. 1 4310 or BS2056 EN58A with a right-hand helix.
All dimensions conform to DIN 2097 (Grade 2).
All dimensions conform to DIN 2097 (Grade 2).

