Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
When a mechanism fails because a spring loses tension, collapses under load, or corrodes in a damp environment, the cost is more than the part itself — it's downtime, rework, and frustration. Engineers, makers, and repair technicians who need a dependable 0.8mm wire diameter compression spring in a range of outer diameters and lengths will find this stainless steel option a straightforward, no-compromise solution.
These compression springs are wound from stainless steel wire with a diameter of 0.8mm (approximately 0.031 in). Outer diameters span 5mm to 12mm (approx. 0.20–0.47 in), and free lengths range from 10mm to 50mm (approx. 0.39–1.97 in). Each spring features closed and ground ends for stable seating and consistent load distribution. Packs are available in 10, 20, or 50 pieces to suit prototyping, small-batch production, or maintenance stock.
Typical use cases include light-load return mechanisms in consumer electronics and appliances, pen and stylus click assemblies, valve and plunger return springs in fluid-handling equipment, and precision jig or fixture components where consistent spring force across a compact stroke is critical.
Wound from stainless steel wire for corrosion resistance in humid, wet, or mildly chemical environments — outlasting carbon steel alternatives in demanding conditions.
Nine free-length options (10–50mm) combined with seven outer diameter options (5–12mm) give you precise dimensional control without custom tooling.
Uniform 0.8mm wire diameter across the entire range ensures predictable spring rate and load characteristics when swapping between lengths or ODs.
Ground end coils sit flat against mating surfaces, reducing lateral deflection and improving load alignment in precision assemblies.
Available in 10, 20, or 50-piece packs — order just what you need for a prototype run or stock up for ongoing maintenance and production.
Used in electronics, fluid valves, pen mechanisms, jigs, fixtures, and light-load return assemblies where compact, reliable spring force is required.
| Wire Diameter | 0.8mm (approx. 0.031 in) |
|---|---|
| Outer Diameter Range | 5mm – 12mm (approx. 0.20–0.47 in) |
| Free Length Range | 10mm – 50mm (approx. 0.39–1.97 in) |
| End Type | Closed and ground |
| Material | Stainless steel |
| Coil Direction | Right-hand (standard) |
| Spring Rate | See variant options |
| Max Load Capacity | See variant options |
| Surface Finish | Bright / natural stainless |
| Pack Quantity | 10 PCS / 20 PCS / 50 PCS (select above) |
Measure the bore or housing your spring will sit in and select an outer diameter (OD) that provides a small clearance — typically 0.5–1mm smaller than the bore ID. For free length, choose a spring that is longer than your required working length so it remains under compression throughout the stroke. If you are unsure, start with a mid-range option (e.g., 8mm OD, 25–30mm length) and test before committing to a larger quantity.
A 0.8mm wire diameter spring is designed for light-duty applications. Typical load capacities vary by outer diameter and free length — shorter springs with smaller ODs carry lower loads, while longer springs with larger ODs can handle slightly more. For exact spring rate and load data for a specific variant, please contact us to confirm before ordering for load-critical applications.
Yes. These springs are wound from stainless steel, which provides good resistance to rust and oxidation in humid, wet, and mildly corrosive environments. They are suitable for outdoor use, bathroom fixtures, marine-adjacent applications, and light chemical exposure. For highly aggressive chemical environments (e.g., strong acids or chlorinated solutions), verify compatibility with your specific conditions.
The packs contain the same spring — only the quantity differs. The 10-piece pack suits prototyping or single-unit repairs. The 20-piece pack is a good balance for small production runs or keeping a modest spare stock. The 50-piece pack offers the best per-unit value for ongoing production, maintenance programs, or workshop stock. Select your preferred quantity in the "Out Diameter & Amount" option above.
Yes. These compression springs feature closed and ground ends. The ground end coils are machined flat, which ensures the spring seats squarely against mating surfaces, reduces lateral (side) deflection under load, and improves load alignment in precision assemblies such as jigs, fixtures, and valve bodies.
If your existing spring has a 0.8mm wire diameter and an outer diameter between 5mm and 12mm with a free length between 10mm and 50mm, these springs are likely a compatible replacement. Measure your original spring's wire diameter, OD, and free length, then select the matching variant. If the spring rate of the original is critical, contact us with your specifications so we can help confirm suitability.
These 0.8mm wire compression springs are widely used in consumer electronics (pen and stylus mechanisms, button return springs), fluid handling (valve and plunger return), precision instruments, light machinery, DIY projects, hobby robotics, and fixture design. Their compact size and stainless steel construction make them a go-to choice wherever a small, reliable return force is needed in a corrosion-resistant package.
