Compression Spring Dia 1.4mm Pressure Coil Springs OD 10-14mm A2 Stainless Steel

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Compression Spring Dia 1.4mm Pressure Coil Springs OD 10-14mm A2 Stainless Steel

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By HomeDIYer®

Outer Diameter.: 10mm

Length.: 10mm

Quantity.: 10 Pcs

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$6.11 USD

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In stock (500 units), ready to be shipped

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A2 Stainless Steel Compression Springs — Wire Dia 1.4mm, OD 10–14mm

When a project demands reliable spring force in a compact form factor, undersized or low-grade springs become a liability. Engineers, makers, and maintenance professionals working on precision assemblies, robotics, or mechanical fixtures need compression springs that hold their rated load cycle after cycle without corroding or fatiguing prematurely. These A2 stainless steel compression springs with a 1.4mm wire diameter are engineered for exactly that demand.

Each spring is cold-wound from A2 (304) stainless steel wire with a nominal wire diameter of 1.4mm (approximately 0.055 in). The outer diameter (OD) spans 10mm to 14mm (approx. 0.39–0.55 in), and the free length range covers 10mm through 200mm (approx. 0.39–7.87 in), giving you a broad selection matrix across outer diameter and length combinations. Ends are closed and ground for flat, stable seating.

Typical use cases include return mechanisms in pneumatic and hydraulic valve assemblies, preload elements in linear guide carriages and 3D printer extruder assemblies, and compression buffers in small-batch jig and fixture builds where consistent spring rate and corrosion resistance are non-negotiable.

⚙️ Compatibility: Suitable for spring pockets and bores sized to accept OD 10–14mm. Verify free length, spring rate, and solid height against your application before ordering. Select your outer diameter and length from the variant options above.

✅ Key Features of These A2 Stainless Steel Compression Springs

🔩 A2 (304) Stainless Steel Wire

Cold-wound from 304-grade stainless wire for reliable corrosion resistance in humid, wet, and mildly acidic environments — a step above carbon steel alternatives.

📐 1.4mm Wire Diameter

Consistent 1.4mm wire cross-section across all variants ensures predictable spring rate and load capacity within the OD 10–14mm range.

📏 Wide OD & Length Matrix

Outer diameters from 10mm to 14mm paired with free lengths from 10mm to 200mm give you a broad selection to match your exact pocket geometry and stroke requirement.

🔄 Closed & Ground Ends

Flat, closed-and-ground end coils provide stable, perpendicular seating against spring pockets and plungers, reducing lateral buckling in guided applications.

🧰 Multi-Pack Quantities

Available in 1, 5, 10, 20, and 30-piece packs — order a single piece for prototyping or a bulk pack for production runs and maintenance stock.

🏭 Broad Application Range

Suited for valve return mechanisms, 3D printer extruder preload, robotics actuators, jig & fixture builds, and general mechanical assemblies requiring compact compression elements.

📐 Technical Specifications — Compression Spring

Material	A2 Stainless Steel (304)
Wire Diameter	1.4mm (approx. 0.055 in)
Outer Diameter (OD)	10mm – 14mm (approx. 0.39–0.55 in)
Free Length	10mm – 200mm (approx. 0.39–7.87 in)
End Type	Closed and Ground
Spring Rate	See variant options
Solid Height	See variant options
Surface Finish	Natural (uncoated stainless)
Coil Direction	Right-hand
Available Quantities	1 / 5 / 10 / 20 / 30 Pcs

❓ Frequently Asked Questions

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

Measure the spring pocket or bore ID in your assembly — the spring OD should be 0.5–1.5mm smaller than the bore for a guided fit. For free length, add your required compressed stroke to the desired compressed height to get the minimum free length needed. Select the closest available OD (10–14mm) and length (10–200mm) from the variant options above.

What load can a 1.4mm wire diameter compression spring handle?

Load capacity depends on the wire diameter, OD, and free length together. A 1.4mm wire spring in the 10–14mm OD range is suited for light-to-medium duty applications — typically in the range of a few Newtons to tens of Newtons depending on the specific length and OD. For exact spring rate and load data, contact us with your selected variant dimensions.

Are these springs corrosion-resistant enough for outdoor or wet environments?

Yes. A2 (304) stainless steel offers solid corrosion resistance against moisture, humidity, and mild chemical exposure. It is suitable for outdoor, marine-adjacent, and food-adjacent environments where carbon steel springs would rust. For highly aggressive chemical or saltwater immersion environments, A4 (316) stainless would be a stronger choice.

Are these compatible with 3D printer extruder or hotend assemblies?

Yes. The 10–12mm OD variants with shorter free lengths (10–30mm) are commonly used as preload springs in extruder lever arms, hotend mounts, and bed leveling assemblies on FDM printers. Verify the OD and free length against your specific printer's spring pocket dimensions before ordering.

What is the difference between the OD options (10mm, 11mm, 12mm, 13mm, 14mm)?

All five OD options share the same 1.4mm wire diameter, so the key difference is the inner diameter (ID) and the resulting spring rate. A larger OD with the same wire diameter produces a lower spring rate (softer spring). Choose the OD that fits your bore or pocket, then select the length that gives you the correct stroke and preload for your design.

Why should I choose stainless steel over zinc-plated carbon steel springs?

Zinc-plated carbon steel springs are cost-effective for dry, indoor applications but will corrode when the plating is scratched or in humid conditions. A2 stainless steel springs maintain their surface integrity without plating, making them more durable over time in environments with moisture, cleaning agents, or temperature cycling — reducing replacement frequency in maintenance-critical assemblies.

Can I order a single piece to test before buying in bulk?

Yes. For longer lengths (120mm, 150mm, 180mm, 200mm), a 1-piece option is available. For shorter lengths, 5-piece and 10-piece packs are the smallest available quantities. Select your preferred quantity from the Quantity option above before adding to cart.

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