10pcs Wire Dia.0.7mm 0.8mm OD 5mm-16mm Small Springs Compression Spring Steel
10pcs Wire Dia.0.7mm 0.8mm OD 5mm-16mm Small Springs Compression Spring Steel
10pcs Wire Dia.0.7mm 0.8mm OD 5mm-16mm Small Springs Compression Spring Steel
10pcs Wire Dia.0.7mm 0.8mm OD 5mm-16mm Small Springs Compression Spring Steel
10pcs Wire Dia.0.7mm 0.8mm OD 5mm-16mm Small Springs Compression Spring Steel
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10pcs Wire Dia.0.7mm 0.8mm OD 5mm-16mm Small Springs Compression Spring Steel10pcs Wire Dia.0.7mm 0.8mm OD 5mm-16mm Small Springs Compression Spring Steel10pcs Wire Dia.0.7mm 0.8mm OD 5mm-16mm Small Springs Compression Spring Steel10pcs Wire Dia.0.7mm 0.8mm OD 5mm-16mm Small Springs Compression Spring Steel10pcs Wire Dia.0.7mm 0.8mm OD 5mm-16mm Small Springs Compression Spring Steel

10pcs Wire Dia.0.7mm 0.8mm OD 5mm-16mm Small Springs Compression Spring Steel

HomeDIYer
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By HomeDIYer®

Price:
$5.15 USD
Stock:
In stock (500 units), ready to be shipped

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Description

Compression Spring Steel — Precision Small Springs for DIY, Robotics & Electronics

When your project demands reliable spring force in a compact form factor, finding the right small compression spring can be a real challenge. Engineers, makers, and technicians working on electronics enclosures, robotics actuators, and precision instruments need springs that hold consistent load without deforming under repeated cycling. These small compression springs are designed for exactly those demanding applications.

Each spring is cold-wound from carbon steel wire with a wire diameter of 0.7mm or 0.8mm and an outer diameter (OD) ranging from 5mm to 16mm (approximately 0.20–0.63 in). Free lengths span from 5mm to 100mm (approximately 0.20–3.94 in), with end configurations that are typically closed and ground for stable seating. Sold in packs of 5 or 10 pieces depending on the selected length variant.

Typical use cases include compression spring replacements in pen mechanisms and clicker assemblies, return springs in miniature valves and solenoids, and preload springs in CNC machine tool holders and robotic gripper fingers — all scenarios where a small compression spring with consistent spring rate is critical to reliable operation.

⚙️ Compatibility: Suitable for general-purpose spring applications in electronics, robotics, automation, and precision DIY assemblies. Select wire diameter and OD to match your housing bore and shaft dimensions.

✅ Key Features of These Compression Spring Steel Small Springs

🔩 Wide Size Matrix

Wire diameters of 0.7mm and 0.8mm paired with OD options from 5mm to 16mm give you precise fit across a broad range of bore sizes without custom tooling.

📏 Multiple Free Lengths

Available in free lengths from 5mm to 100mm (0.20–3.94 in), letting you dial in the exact travel and preload your assembly requires.

⚡ Consistent Spring Rate

Cold-wound construction maintains uniform coil pitch and wire cross-section, delivering repeatable force-deflection behavior across the full compression stroke.

🛡️ Carbon Steel Construction

Made from carbon steel wire, providing the tensile strength and fatigue resistance needed for cyclic loading in mechanical and electromechanical devices.

📦 Convenient Pack Quantities

Shorter lengths (5–50mm) ship in packs of 10; longer lengths (60–100mm) in packs of 5, so you get the right quantity for prototyping or small-batch production.

🔄 Closed & Ground Ends

End coils are typically closed and ground flat for stable, perpendicular seating against spring pockets and plungers, reducing lateral buckling risk.

📐 Technical Specifications — Compression Spring Steel

Wire Diameter 0.7mm / 0.8mm (0.028 in / 0.031 in)
Outer Diameter (OD) 5mm – 16mm (0.20 in – 0.63 in)
Free Length 5mm – 100mm (0.20 in – 3.94 in)
Material Carbon Steel
End Type Closed and Ground (typical)
Spring Type Compression
Wind Direction Right-hand (typical)
Surface Finish See variant options
Spring Rate See variant options
Pack Quantity 5 pcs (lengths ≥60mm) / 10 pcs (lengths ≤50mm)

❓ Frequently Asked Questions

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

Measure the bore or housing ID where the spring will seat. The spring OD should be 0.2–0.5mm smaller than the bore for a sliding fit, or match the shaft OD if the spring rides over a rod. Wire diameter determines the spring rate — a thicker wire (0.8mm) produces a stiffer spring than 0.7mm at the same OD and length.

What is the load capacity of these small compression springs?

Exact load ratings depend on the specific OD, wire diameter, and free length combination selected. As a general guide, 0.7mm wire springs in this size range typically handle light loads of 0.1–2N at moderate deflection. For precise spring rate and load data for your chosen variant, contact us to confirm.

Are these springs corrosion-resistant for outdoor or humid environments?

These springs are made from carbon steel, which offers good mechanical properties but limited corrosion resistance without additional treatment. For humid, wet, or outdoor environments, consider applying a light oil coating after installation, or contact us about stainless steel alternatives if your application demands higher corrosion resistance.

Can I use these springs in electronics or PCB assemblies?

Yes. The small wire diameters (0.7–0.8mm) and compact OD range (5–16mm) make these springs well-suited for use in battery contacts, push-button mechanisms, connector preloads, and similar electronics applications where space is constrained and consistent contact force is required.

What is the difference between the 5-piece and 10-piece pack options?

Shorter free-length variants (5mm through 50mm) are sold in packs of 10 pieces. Longer variants (60mm through 100mm) are sold in packs of 5 pieces. The pack size is indicated in the "Length & Quantity" variant selector so you always know exactly how many springs you are ordering.

Are these springs suitable for robotics and automation projects?

Yes. These compression springs are commonly used in robotic gripper return mechanisms, linear actuator preloads, and sensor mounting assemblies. The consistent coil pitch and closed-ground ends ensure repeatable force output across thousands of cycles, which is important for automated systems that require predictable spring behavior.

How do I verify the spring fits my existing assembly before ordering?

Check three key dimensions: (1) the bore or shaft diameter to confirm OD clearance, (2) the available pocket depth to confirm the free length fits without bottoming out at full compression, and (3) the required load at working height to confirm the wire diameter provides adequate spring rate. If you need help matching dimensions, contact us with your application details.

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

 

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