Compression Spring 0.9mm Wire Diameter 5-11mm OD 10-60mm Length Zinc Plated

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Compression Spring 0.9mm Wire Diameter 5-11mm OD 10-60mm Length Zinc Plated

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By HomeDIYer®

Wire Dia x Outer Dia x Length: 0.9x5x10mm

Pack Size(Pcs): 10

Price:

$11.40 USD

Stock:

In stock (500 units), ready to be shipped

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Compression Springs with 0.9mm Wire Diameter — Reliable Elastic Force for Precision Applications

Engineers, makers, and repair technicians who work with small mechanisms know the frustration of sourcing consistent, correctly-sized compression springs. Undersized or poorly finished springs lose tension prematurely, causing failures in assemblies that demand repeatable performance. These zinc-plated compression springs are designed for professionals and DIYers who need dependable elastic return force across a wide range of compact applications.

Each spring is wound from 0.9mm wire diameter carbon steel and finished with a zinc plating for corrosion resistance. The outer diameter (OD) ranges from 5mm to 14mm (approximately 0.20" to 0.55"), and the free length spans 10mm to 60mm (approximately 0.39" to 2.36"). Select your exact Wire Dia × OD × Length combination and pack size (10, 20, 50, or 100 pieces) from the variant options above.

Typical use cases include compression spring replacements in electronic enclosures and battery contacts, return-force elements in jigs and fixtures for small-batch manufacturing, and spring-loaded mechanisms in robotics, automation, and hobby projects requiring precise, repeatable actuation.

⚙️ Compatibility: Suitable for spring housings, bores, and guide pins sized to match the selected OD. Verify free length and spring rate against your assembly requirements before ordering. See variant options for exact dimensions.

✅ Key Features of These Compression Springs

🔩 0.9mm Wire Diameter

Consistent wire gauge across all variants ensures uniform spring rate and predictable deflection behavior in precision assemblies.

📏 Wide Size Range

OD from 5mm to 14mm and free length from 10mm to 60mm — a broad selection covering the most common small-spring applications in one catalog.

🛡️ Zinc-Plated Finish

Electroplated zinc coating provides a corrosion-resistant barrier, extending service life in moderately humid or indoor industrial environments.

📦 Flexible Pack Sizes

Available in packs of 10, 20, 50, or 100 pieces — order the exact quantity you need for prototyping, repair, or small-batch production runs.

⚡ Consistent Coil Geometry

Closed and ground ends (typical for this spring class) provide flat seating surfaces for stable load distribution and accurate spring rate.

🔧 Broad Application Fit

Suited for battery contacts, push-button mechanisms, jig return elements, robotics actuators, and general-purpose spring-loaded assemblies.

📐 Technical Specifications — Compression Spring

Wire Diameter	0.9 mm
Outer Diameter (OD)	5 mm – 14 mm (0.20" – 0.55")
Free Length	10 mm – 60 mm (0.39" – 2.36")
Material	Carbon steel
Surface Finish	Zinc plated
End Type	See variant options
Spring Rate	See variant options
Load Capacity	See variant options
Pack Size	10 / 20 / 50 / 100 pcs
Operating Temperature	See variant options

❓ Frequently Asked Questions

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

Measure the bore or housing diameter your spring must fit inside — the spring OD should be slightly smaller than the bore. For free length, choose a spring that is longer than your required compressed length plus the desired travel distance. Use the Wire Dia × OD × Length selector above to find your exact size.

What material are these springs made from?

These compression springs are wound from carbon steel wire with a 0.9mm diameter. The zinc plating is applied after forming to provide a corrosion-resistant surface finish suitable for indoor and moderately humid environments.

Are these springs corrosion resistant?

Yes. The zinc electroplating provides a protective barrier against oxidation and light moisture exposure. For highly corrosive or submerged environments, consider stainless steel springs instead. These zinc-plated springs are well-suited for indoor mechanical assemblies, electronics, and general DIY use.

What is the spring rate (stiffness) of these springs?

Spring rate varies by OD and free length combination. Shorter springs with smaller OD tend to be stiffer, while longer springs with larger OD are more compliant. Exact spring rate data is not listed per variant — if your application requires a specific rate, please contact us to confirm before ordering.

Can I use these springs in robotics or automation equipment?

Yes. These springs are commonly used in robotics actuators, sensor return mechanisms, and small automation fixtures. The consistent 0.9mm wire diameter and wide OD/length range make them suitable for compact spring-loaded assemblies where repeatable force and reliable return motion are required.

What pack size should I order?

For prototyping or repair, the 10-piece pack is ideal. For small-batch production or stocking a workshop, the 50 or 100-piece packs offer better per-unit value. Select your preferred pack size using the Pack Size(Pcs) option above.

Are the spring ends closed and ground?

End type varies by specific variant. For this spring class (small-diameter, light-duty compression springs), ends are typically closed. Contact us to confirm end type for your selected size if flat seating is critical to your design.

🛒 Select your Wire Dia × OD × Length and Pack Size above, then add to cart.