Compression Spring Various Size 10-21mm Dia. & 15-100mm Length - 2.0mm Wire Dia.

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Compression Spring Various Size 10-21mm Dia. & 15-100mm Length - 2.0mm Wire Dia.

HomeDIYer

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By HomeDIYer®

Wire diameter x Outer diameter x Length (mm): 2.0mm x 10mm x 15mm

Amount (pieces): 5

Price:

$4.64 USD

Stock:

In stock (500 units), ready to be shipped

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Compression Spring 2.0mm Wire Dia. — Precision Fit for Mechanical & DIY Applications

When a spring fails mid-project, the entire assembly stalls — whether you're building a custom jig, repairing a mechanical linkage, or prototyping a robotics actuator. Engineers, makers, and maintenance technicians who need a reliable, dimensionally consistent compression spring in a compact form factor will find this listing covers an exceptionally wide size matrix.

Each compression spring features a 2.0mm wire diameter and is available in outer diameters ranging from 10mm to 21mm (approximately 0.39" to 0.83") and free lengths from 15mm to 100mm (approximately 0.59" to 3.94"). Springs are wound from carbon steel wire and supplied in packs of 2, 3, or 5 pieces depending on the selected size variant.

Typical use cases include compression spring replacement for drawer slides and cabinet mechanisms, load-bearing spring elements in 3D printer extruder assemblies, and return-force components in custom robotics end-effectors and linear actuators.

🔧 Compatibility: Suitable for standard spring seats and bores accepting 10–21mm OD springs. Verify bore clearance and seat depth against your free length and compressed length requirements before ordering.

✅ Key Features of These Compression Springs

📐

Wide Size Matrix

156 size combinations spanning 10–21mm OD and 15–100mm free length — one listing covers most compact spring needs.

🔩

2.0mm Wire Diameter

Consistent 2.0mm wire cross-section across all variants ensures predictable spring rate and load characteristics within this wire gauge class.

⚙️

Carbon Steel Construction

Wound from carbon steel wire for reliable elastic return and resistance to permanent set under moderate cyclic loads.

📦

Multi-Pack Options

Available in packs of 2, 3, or 5 pieces per order — matched to size so you receive a practical quantity for prototyping or repair.

🎯

Closed & Ground Ends

End coil style provides a flat seating surface for stable axial loading in spring pockets and between parallel plates.

🛠️

Broad Application Range

Suited for robotics, automation fixtures, DIY mechanical assemblies, drawer mechanisms, and light industrial maintenance tasks.

📐 Technical Specifications — Compression Spring

Wire Diameter	2.0 mm
Outer Diameter Range	10 mm – 21 mm (0.39" – 0.83")
Free Length Range	15 mm – 100 mm (0.59" – 3.94")
Material	Carbon Steel
End Type	See variant options
Surface Finish	See variant options
Spring Rate	See variant options
Max Load Capacity	See variant options
Pack Quantity	2, 3, or 5 pieces (varies by size)
Wind Direction	Right-hand (standard)

❓ Frequently Asked Questions

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

Measure the bore or spring pocket your spring must fit into — the spring's outer diameter should be 0.5–1.5mm smaller than the bore for clearance. For free length, measure the uncompressed gap the spring must fill, then confirm the compressed length leaves adequate travel for your mechanism. Use the variant selector above to match wire diameter (2.0mm), outer diameter (10–21mm), and free length (15–100mm) to your measured values.

What load can a 2.0mm wire diameter compression spring handle?

Load capacity depends on the specific outer diameter and free length combination selected. Shorter springs with larger outer diameters in this 2.0mm wire series will carry higher loads. For precise spring rate and load data for your chosen size, contact us to confirm — we do not publish fabricated load values that could lead to incorrect application decisions.

Are these springs corrosion-resistant?

These springs are wound from carbon steel wire, which provides good mechanical properties but has limited inherent corrosion resistance. For environments with moisture, mild chemicals, or outdoor exposure, consider applying a light coating of machine oil after installation, or contact us to inquire about stainless steel alternatives if your application demands higher corrosion resistance.

What does the pack quantity depend on?

Pack quantity (2, 3, or 5 pieces) is determined by the size variant selected and is shown in the "Amount (pieces)" option. Smaller and mid-range sizes typically ship in packs of 5, while larger or longer variants ship in packs of 3 or 2. The pack size is fixed per variant and cannot be customized.

Are these compatible with 3D printer extruder or bed-leveling assemblies?

Many 3D printer extruder and bed-leveling spring seats accept springs in the 10–15mm OD range with free lengths of 15–25mm. Select the outer diameter that matches your spring seat bore clearance and the free length that matches your uncompressed gap. The 2.0mm wire diameter provides a moderate spring rate suitable for light-duty extruder and leveling applications.

How do I decide between the available outer diameters (10mm to 21mm)?

Start with your bore or guide rod diameter. If using a guide rod, the spring's inner diameter (outer diameter minus twice the wire diameter, approximately OD − 4mm for 2.0mm wire) should clear the rod with at least 0.5mm of radial clearance. If fitting into a bore, the outer diameter should be 0.5–1.5mm smaller than the bore. Use these calculations to narrow down the correct OD from the 10–21mm range available.

Can I use these springs in robotics or automation fixtures?

Yes. These compression springs are well-suited for return-force elements in robotic end-effectors, linear actuator preload, gripper mechanisms, and automation fixture clamping. Select the OD and free length that match your mechanism's spring pocket geometry and required travel. For high-cycle or precision-load applications, verify the spring rate against your design requirements before committing to a large quantity.

🛒 Select your wire diameter × outer diameter × length combination and pack quantity above, then add to cart.