Compression Springs Steel wire 1.0mm small coil spring 15-305mm Stainless Steel
Compression Springs Steel wire 1.0mm small coil spring 15-305mm Stainless Steel
Compression Springs Steel wire 1.0mm small coil spring 15-305mm Stainless Steel
Compression Springs Steel wire 1.0mm small coil spring 15-305mm Stainless Steel
Compression Springs Steel wire 1.0mm small coil spring 15-305mm Stainless Steel
Compression Springs Steel wire 1.0mm small coil spring 15-305mm Stainless Steel
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Compression Springs Steel wire 1.0mm small coil spring 15-305mm Stainless SteelCompression Springs Steel wire 1.0mm small coil spring 15-305mm Stainless SteelCompression Springs Steel wire 1.0mm small coil spring 15-305mm Stainless SteelCompression Springs Steel wire 1.0mm small coil spring 15-305mm Stainless SteelCompression Springs Steel wire 1.0mm small coil spring 15-305mm Stainless SteelCompression Springs Steel wire 1.0mm small coil spring 15-305mm Stainless Steel

Compression Springs Steel wire 1.0mm small coil spring 15-305mm Stainless Steel

HomeDIYer
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By HomeDIYer®

Price:
$9.17 USD
Stock:
In stock (500 units), ready to be shipped

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Description

Stainless Steel Compression Springs — 1.0mm Wire, Reliable Elastic Force for Every DIY Build

When a project demands consistent return force in a compact space, finding the right compression spring can be frustrating — wrong length, wrong diameter, or a material that corrodes after a few weeks. These stainless steel compression springs are designed for makers, engineers, and DIY enthusiasts who need a dependable elastic component that holds up over repeated cycles without degrading.

Each spring is formed from 1.0mm wire diameter stainless steel, with outer diameters of either 12mm (~0.47 in) or 13mm (~0.51 in), and lengths ranging from 15mm to 305mm (~0.59 in to ~12.0 in). The coil geometry provides a consistent spring rate across the full compression range, and the stainless steel construction resists oxidation in both indoor and light outdoor environments.

These compression springs suit a wide range of applications: use them as small coil springs in mechanical assemblies, replacement springs in tool mechanisms, tension-return components in jigs and fixtures, or as precision elastic elements in robotics and automation projects. Whether you need a short 15mm spring for a compact latch or a 305mm spring for a longer-travel mechanism, this range covers the most common DIY and light-industrial spring sizes.

🔩 Compatible with standard spring seats, guide rods, and bores sized for 12mm or 13mm OD springs. Verify inner diameter clearance against your guide rod before ordering.

✅ Key Features of These Stainless Steel Compression Springs

🧲 1.0mm Wire Diameter

Consistent wire gauge across all sizes ensures predictable spring rate and reliable elastic return force in compact mechanisms.

📏 Wide Length Range: 15–305mm

Covers short-travel latches through long-travel actuator returns — select the exact free length your design requires.

⚙️ Two Outer Diameter Options: 12mm & 13mm

Choose OD 12mm (~0.47 in) or OD 13mm (~0.51 in) to match your bore or spring seat without modification.

🛡️ Stainless Steel Construction

Resists rust and surface oxidation, maintaining spring performance in humid workshops, light outdoor enclosures, and repeated-use tooling.

📦 Flexible Pack Quantities

Available in packs of 1 or 10 pieces — order a single spring for a repair or a pack of 10 for prototyping and batch builds.

🔄 Closed-End Coil Design

Closed and ground ends provide flat seating surfaces for stable load transfer and accurate alignment in spring pockets and guide assemblies.

📐 Technical Specifications — Compression Spring

Wire Diameter 1.0mm (~0.039 in)
Outer Diameter (OD) 12mm (~0.47 in) or 13mm (~0.51 in) — See variant options
Free Length Range 15mm – 305mm (~0.59 in – ~12.0 in) — See variant options
Material Stainless Steel
End Type Closed ends (ground flat)
Spring Type Compression (coil)
Spring Rate See variant options
Pack Quantity 1 pc or 10 pcs — See variant options
Finish Natural stainless (uncoated)

❓ Frequently Asked Questions

How do I choose the right length for my application?

Measure the free (uncompressed) space available in your assembly and select a spring whose free length is slightly longer than that space — typically 10–20% longer than the compressed working length. This ensures the spring remains under load at its working position and does not go coil-bound. Use the variant selector above to pick the exact free length you need.

What is the difference between the 12mm and 13mm outer diameter options?

The outer diameter must fit inside your bore or spring pocket with a small clearance (typically 0.5–1mm). If your bore is 13mm, choose the 12mm OD spring. If your bore is 14mm, the 13mm OD spring is a better fit. Both share the same 1.0mm wire diameter, so the spring rate will be similar for the same free length.

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

Yes. Stainless steel provides good resistance to rust and surface oxidation in humid workshops, light outdoor enclosures, and environments with occasional moisture exposure. For fully submerged or highly corrosive chemical environments, confirm the specific stainless alloy grade meets your requirements before use.

What guide rod diameter should I use with these springs?

The inner diameter of these springs is approximately OD minus 2× wire diameter. For the 12mm OD spring: inner diameter ≈ 10mm. For the 13mm OD spring: inner diameter ≈ 11mm. Use a guide rod that is 0.5–1mm smaller than the inner diameter to allow free movement without binding.

Can I use these springs in a compression-only application, or can they handle lateral loads?

These are designed for axial compression loads. They can tolerate minor lateral forces when guided by a rod or bore, but should not be used as the primary lateral load-bearing element. For applications with significant side loading, use a guide rod or spring pocket to keep the spring aligned.

Should I order 1 pc or 10 pcs?

Order 1 pc if you need a single replacement spring or are testing a size for fit. Order 10 pcs if you are building multiple assemblies, running a prototype batch, or want spares on hand. The 10-pack offers a lower per-unit cost and is the practical choice for any build requiring more than one spring of the same size.

What is the maximum compression (solid height) of these springs?

Solid height depends on the number of coils and wire diameter. As a conservative estimate, do not compress these springs beyond 80% of their free length in continuous-duty applications to avoid set (permanent deformation). For exact solid height data, contact us to confirm for your specific size.

🛒 Select your size (Wire Diameter × Outer Diameter × Length) and quantity above, then add to cart.

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