0.9mm Wire Dia Length 10-50mm Galvanized Compression small spring Springs 10pcs
0.9mm Wire Dia Length 10-50mm Galvanized Compression small spring Springs 10pcs
0.9mm Wire Dia Length 10-50mm Galvanized Compression small spring Springs 10pcs
0.9mm Wire Dia Length 10-50mm Galvanized Compression small spring Springs 10pcs
0.9mm Wire Dia Length 10-50mm Galvanized Compression small spring Springs 10pcs
0.9mm Wire Dia Length 10-50mm Galvanized Compression small spring Springs 10pcs
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0.9mm Wire Dia Length 10-50mm Galvanized Compression small spring Springs 10pcs0.9mm Wire Dia Length 10-50mm Galvanized Compression small spring Springs 10pcs0.9mm Wire Dia Length 10-50mm Galvanized Compression small spring Springs 10pcs0.9mm Wire Dia Length 10-50mm Galvanized Compression small spring Springs 10pcs0.9mm Wire Dia Length 10-50mm Galvanized Compression small spring Springs 10pcs0.9mm Wire Dia Length 10-50mm Galvanized Compression small spring Springs 10pcs

0.9mm Wire Dia Length 10-50mm Galvanized Compression small spring Springs 10pcs

HomeDIYer
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By HomeDIYer®

Price:
$7.19 USD
Stock:
In stock (500 units), ready to be shipped

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Description

0.9mm Galvanized Compression Springs — Reliable Force for Every DIY Mechanism

When a mechanism fails because a tiny spring loses tension or corrodes, the whole project stalls. Hobbyists, makers, and small workshop technicians who work with electronics, precision jigs, or lightweight automation assemblies need a compression spring they can count on — one that holds its load rating across repeated cycles without rust or fatigue. These 0.9mm wire diameter galvanized compression springs are engineered for exactly that demand.

Each pack contains 10 identical springs manufactured from galvanized steel wire with a nominal wire diameter of 0.9mm (approximately 0.035 in). Outside diameter options span 5mm to 14mm (approx. 0.20–0.55 in), and free lengths range from 10mm to 50mm (approx. 0.39–1.97 in), giving you precise control over spring rate and travel distance. The zinc-based galvanized coating provides a corrosion-resistant barrier suited to indoor and light-duty outdoor environments.

Typical use cases include pen and stylus click mechanisms requiring a consistent return force, PCB test-probe assemblies where a 0.9mm wire spring fits inside a tight bore, DIY drawer or cabinet latch returns, small-scale robotics joint preloading, and educational lab demonstrations of Hooke's Law with measurable spring constants.

⚙️ Compatible with standard spring pockets sized for 5–14mm OD. Verify bore clearance and free-length travel before installation.

✅ Key Features of These 0.9mm Galvanized Compression Springs

  • 🔩Galvanized Steel Construction — Zinc-coated wire resists surface oxidation and extends service life in humid or variable-temperature environments.
  • 📐Wide Size Matrix — Outside diameters from 5mm to 14mm and free lengths from 10mm to 50mm let you dial in the exact spring rate your design requires.
  • 🔁Consistent Cycle Performance — Uniform 0.9mm wire diameter and tightly wound coils maintain load characteristics across repeated compression and extension cycles.
  • 📦Pack of 10 — Receive 10 identical springs per order, giving you spares for prototyping, testing, and replacement without reordering delays.
  • 🎯Compact Form Factor — The 0.9mm wire gauge fits inside narrow spring pockets and guide pins common in pen mechanisms, test probes, and miniature actuators.
  • 🛠️Versatile Application Range — Suitable for click-pen returns, PCB probe contacts, latch mechanisms, robotics preloading, and educational spring-constant experiments.

📐 Technical Specifications — Compression Springs

Wire Diameter 0.9mm (approx. 0.035 in)
Outside Diameter (OD) 5mm – 14mm (approx. 0.20–0.55 in) — See variant options
Free Length 10mm – 50mm (approx. 0.39–1.97 in) — See variant options
Material Galvanized steel
Surface Treatment Zinc galvanized coating
Spring Type Compression (closed ends)
Quantity per Pack 10 pieces
Spring Rate See variant options
Max Load See variant options
End Type Closed / ground — Contact us to confirm

❓ Frequently Asked Questions

How do I choose the right outside diameter and length for my application?

Measure the spring pocket or guide pin bore in your assembly. The spring OD should be 0.2–0.5mm smaller than the bore for smooth travel. For free length, select a spring that is 20–30% longer than your desired compressed height to ensure adequate preload and travel range. Use the variant selector above to match your OD (5–14mm) and free length (10–50mm) requirements.

What load can a 0.9mm wire diameter compression spring handle?

Load capacity depends on the outside diameter, free length, and number of active coils — all of which vary by variant. As a general guide, 0.9mm wire springs in this size range are suited for light-duty applications typically in the 0.1–5N load range. For precise spring rate and maximum load data for a specific variant, please contact us to confirm.

Is the galvanized coating sufficient for outdoor or wet environments?

The zinc galvanized coating provides good resistance to light moisture and humidity, making these springs suitable for indoor use and sheltered outdoor applications. For prolonged exposure to rain, salt spray, or immersion, a stainless steel spring would be a more appropriate choice. These springs are optimized for dry to mildly humid conditions.

Are these springs compatible with standard spring guide pins?

Yes. The OD range of 5–14mm covers most standard guide pin diameters used in jigs, fixtures, and consumer product mechanisms. Ensure the guide pin OD is at least 0.5mm smaller than the spring ID (ID ≈ OD minus 1.8mm for 0.9mm wire) to allow free axial movement without binding.

Can I use these springs in a pen click mechanism or stylus?

Absolutely. The 0.9mm wire gauge and small OD options (5–7mm) are well-matched to the spring pockets found in ballpoint pen click mechanisms, retractable styluses, and similar consumer writing instruments. Select the shortest free length (10–15mm) for compact pen barrels, or a longer length for mechanisms requiring more travel.

Do you sell individual springs, or only in packs of 10?

These springs are sold in packs of 10 identical pieces per order. This pack size is designed to give you spares for prototyping and replacement without the cost of bulk quantities. If you need larger quantities for production or wholesale, please contact us directly to discuss volume pricing.

How do I determine if a compression spring will fatigue or take a set over time?

Spring fatigue and set (permanent deformation) occur when a spring is compressed beyond its elastic limit repeatedly. To avoid this, never compress these springs more than 80% of their free length in normal operation. For high-cycle applications (100,000+ cycles), consider specifying a spring with a higher wire diameter or a lower spring rate relative to your load to keep stress within safe limits.

🛒 Select your Wire Diameter, Outside Diameter, and Length above, then add to cart.

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