10X Stainless Steel Compression Springs Small Sizes 5-12mm Diameter 10-50mm long

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10X Stainless Steel Compression Springs Small Sizes 5-12mm Diameter 10-50mm long

Name: 10X Stainless Steel Compression Springs Small Sizes 5-12mm Diameter 10-50mm long
Brand: HomeDIYer
Price: 2.98 USD
Availability: InStock

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By HomeDIYer®

Wire dia*O.D.*L: 0.7*5*5mm

Packing Quantity: 10PCS

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$2.98 USD

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In stock (500 units), ready to be shipped

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Stainless Steel Compression Springs — Precise Force in a Compact Form

Finding a compression spring that fits a tight cavity without sacrificing return force is a recurring headache for makers, engineers, and repair technicians alike. Whether you are prototyping a sensor housing, restoring a mechanical assembly, or building a custom jig, an undersized or oversized spring throws off the entire design. These stainless steel compression springs are engineered for exactly those demanding small-space applications.

Each spring is formed from stainless steel wire with a diameter of 0.7 mm, wound into a closed-end coil body. Outer diameters span 5 mm to 12 mm (approximately 0.20 in to 0.47 in), and free lengths range from 5 mm to 50 mm (approximately 0.20 in to 1.97 in). Packing options of 10, 20, or 50 pieces let you stock exactly what your workflow demands.

Typical use cases include small compression spring for electronics enclosures, miniature compression spring for robotics actuators, and replacement compression spring for precision instruments and consumer product repair. The consistent coil pitch across the range ensures predictable deflection behavior from the first compression cycle.

🔧 Compatible with standard spring seats, plunger mechanisms, and custom 3D-printed housings accepting 5–12 mm OD springs.

✅ Key Features of These Stainless Steel Compression Springs

🔩0.7 mm Wire Diameter

Consistent wire gauge across all size variants ensures uniform spring rate calculations and interchangeable design planning.

📐Wide Size Matrix

Outer diameters from 5 mm to 12 mm and free lengths from 5 mm to 50 mm give you a broad selection without sourcing from multiple suppliers.

🛡️Stainless Steel Construction

Stainless steel resists oxidation and mild corrosive environments, maintaining spring integrity in humid or outdoor-adjacent applications.

⚙️Closed Ends for Stable Seating

Closed-end coil geometry provides flat bearing surfaces that seat squarely against spring pockets, reducing lateral drift under load.

📦Flexible Pack Quantities

Choose 10, 20, or 50 pieces per order to match prototype runs, small-batch production, or maintenance stock requirements.

🔄Consistent Coil Pitch

Uniform pitch throughout the coil body delivers repeatable deflection behavior, making these springs suitable for load-sensitive mechanisms.

📐 Technical Specifications — Compression Springs

Material	Stainless Steel
Wire Diameter	0.7 mm
Outer Diameter (O.D.) Range	5 mm – 12 mm (0.20 in – 0.47 in)
Free Length Range	5 mm – 50 mm (0.20 in – 1.97 in)
End Type	Closed ends
Spring Rate	See variant options
Load Capacity	See variant options
Surface Finish	Natural stainless (no coating)
Packing Quantity	10 PCS / 20 PCS / 50 PCS
Application	DIY, robotics, electronics, precision instruments

❓ Frequently Asked Questions

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

Measure the spring pocket or bore diameter in your assembly and select an O.D. that is 0.2–0.5 mm smaller than the bore for a sliding fit. For free length, choose a spring that is 20–30% longer than your required compressed length to ensure adequate preload and travel. Use the Wire dia × O.D. × L variant selector above to find your exact combination.

What load can these springs handle?

Load capacity depends on the specific O.D. and free length combination selected. Longer springs with the same wire diameter and O.D. will have a lower spring rate (softer feel), while shorter springs will be stiffer. If you need precise spring rate data for a specific variant, please contact us to confirm before ordering.

Are these springs corrosion-resistant?

Yes. Stainless steel provides good resistance to oxidation and mild corrosive environments such as humidity, light moisture, and non-aggressive chemicals. For highly corrosive or salt-spray environments, additional protective measures may be advisable. These springs are not recommended for immersion in strong acids or chlorinated solutions.

What is the difference between the 10 PCS, 20 PCS, and 50 PCS packs?

All three packs contain identical springs of the same Wire dia × O.D. × L specification. The only difference is quantity. The 10 PCS pack suits prototyping and single-unit repairs; the 20 PCS pack is ideal for small-batch builds; and the 50 PCS pack offers the best per-unit value for production runs or maintenance stock.

Are these springs compatible with 3D-printed spring seats?

Yes, provided the printed bore diameter is sized to match the selected O.D. with a 0.2–0.5 mm clearance. Closed-end coils seat flat against printed surfaces without requiring machined counterbores. We recommend FDM-printed seats with at least 1.2 mm wall thickness around the spring pocket for adequate support.

Can I use these springs in robotics and automation projects?

Absolutely. The consistent wire diameter and closed-end geometry make these springs well-suited for gripper return mechanisms, button plungers, tensioning assemblies, and sensor preload applications in robotics and automation. Select the O.D. and length that matches your actuator travel and force requirements.

How do I verify the spring rate before designing my assembly?

Spring rate (k) can be estimated using the formula k = (G × d⁴) / (8 × D³ × n), where G is the shear modulus of stainless steel (~69 GPa), d is wire diameter, D is mean coil diameter (O.D. minus wire diameter), and n is the number of active coils. For confirmed values on a specific variant, contact us with your selected size.

🛒 Select your Wire dia × O.D. × Length and Packing Quantity above, then add to cart.

10X Stainless Steel Compression Springs Small Sizes 5-12mm Diameter 10-50mm long

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Description

Stainless Steel Compression Springs — Precise Force in a Compact Form

✅ Key Features of These Stainless Steel Compression Springs

📐 Technical Specifications — Compression Springs

❓ Frequently Asked Questions

10X Stainless Steel Compression Springs Small Sizes 5-12mm Diameter 10-50mm long

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