1.6mm Wire Dia Compression Spring 16-25mm Dia 10-200mm Length A2 Stainless Steel

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1.6mm Wire Dia Compression Spring 16-25mm Dia 10-200mm Length A2 Stainless Steel

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Wire Dia x Outer Dia x Length: 1.6x16x10mm

Pack of Quantity(Pcs): 1

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$4.34 USD

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In stock (500 units), ready to be shipped

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1.6mm Wire Compression Springs — Reliable Elastic Force for Precision Applications

Engineers, makers, and maintenance professionals often struggle to find compression springs that combine dimensional accuracy with long-term corrosion resistance. These 1.6mm wire diameter compression springs are designed for anyone who needs a dependable elastic return force in compact mechanisms — from robotics builders and automation integrators to DIY repair technicians working on appliances, valves, or jigs.

Each spring is manufactured from A2 (304) stainless steel wire with a nominal diameter of 1.6mm (0.063 in). The outer diameter spans 16–25mm (0.63–0.98 in), and the free length ranges from 10mm to 200mm (0.39–7.87 in). The open-coil, cylindrical body provides consistent linear spring force across the compression stroke.

Typical use cases include light-load compression spring for electronic enclosures, stainless steel return spring for valve actuators, and small-diameter coil spring for robotics end-effectors and 3D-printer tensioning mechanisms.

⚙️ Compatibility: Suitable for spring-loaded assemblies, plunger mechanisms, valve returns, jig fixtures, and light-duty automation components. Select the outer diameter and free length that match your bore and travel requirements.

✅ Key Features of These 1.6mm Wire Compression Springs

🔩 A2 Stainless Steel Construction

Made from A2 (304) grade stainless steel wire, offering solid resistance to oxidation and mild corrosive environments — suitable for indoor and light outdoor applications.

📐 Wide Size Range

Wire diameter 1.6mm, outer diameter 16–25mm, free length 10–200mm. Extensive variant matrix lets you match the exact spring geometry your design requires.

⚖️ Consistent Linear Spring Rate

Open-coil cylindrical winding delivers a predictable, linear force-deflection curve — critical for repeatable actuation in automated and precision assemblies.

🔄 Multi-Pack Options Available

Available in packs of 1, 5, or 10 pieces. Stock up for prototyping, batch production, or maintenance kits without overpaying for single-piece pricing.

🛡️ Corrosion-Resistant Finish

The natural stainless steel surface requires no additional coating, reducing the risk of flaking or contamination in sensitive assemblies such as food-adjacent fixtures or clean-room jigs.

🏭 Broad Application Compatibility

Fits standard spring pockets and plunger bores in robotics, 3D printers, valve bodies, electronic enclosures, and general-purpose DIY mechanisms.

📐 Technical Specifications — 1.6mm Wire Compression Spring

Wire Diameter	1.6mm (0.063 in)
Outer Diameter (OD)	16mm – 25mm (0.63 – 0.98 in)
Free Length	10mm – 200mm (0.39 – 7.87 in)
Material	A2 Stainless Steel (304)
Spring Type	Compression, Open Coil, Cylindrical
End Type	See variant options
Surface Finish	Natural stainless steel, uncoated
Spring Rate	See variant options
Pack Quantity	1 / 5 / 10 pieces
Operating Temperature	Typically –20°C to +200°C (–4°F to +392°F)

❓ Frequently Asked Questions

How do I choose the right outer diameter and free length?

Measure the bore or pocket that will house the spring to determine the maximum outer diameter. Then calculate the required free length based on your working travel: free length = compressed length + desired stroke. Add a small clearance (typically 0.5–1mm) between the OD and the bore wall to allow smooth compression without binding.

What load can a 1.6mm wire diameter compression spring handle?

The load capacity depends on the outer diameter, free length, and number of active coils — all of which vary by variant. As a general guide, 1.6mm wire springs are suited to light-to-medium loads, typically in the range of a few Newtons to tens of Newtons depending on geometry. Contact us to confirm the spring rate for a specific variant if your application is load-critical.

Are these springs suitable for outdoor or humid environments?

A2 (304) stainless steel provides good resistance to atmospheric corrosion and mild moisture. These springs are suitable for indoor use and light outdoor exposure. For highly corrosive environments (salt spray, chlorinated water, or strong acids), consider A4 (316) stainless steel springs instead.

Can I use these springs in food-contact or clean-room applications?

A2 stainless steel is widely used in food-adjacent and light clean-room fixtures because it does not require surface coatings that could flake. However, for direct food-contact or pharmaceutical-grade applications, verify compliance with the relevant local regulations before use.

What is the difference between the 16mm, 18mm, 20mm, 21mm, 22mm, 24mm, and 25mm OD variants?

The outer diameter determines which bore size the spring fits. A larger OD generally means a stiffer spring for the same wire diameter and free length, because the coil diameter affects the spring index and rate. Choose the OD that matches your housing bore with the appropriate clearance, then select the free length to achieve your required travel and preload.

Do the multi-pack options (5 or 10 pieces) contain identical springs?

Yes. Each pack contains identical springs of the selected Wire Dia × OD × Length variant. Multi-pack options are ideal for prototyping batches, spare-parts kits, or small-scale production runs where you need consistent spring performance across multiple assemblies.

How do I verify the spring fits before committing to a larger quantity?

We recommend ordering a single-piece (Qty 1) variant first to confirm fit, travel, and load characteristics in your assembly. Once validated, you can order the 5-pack or 10-pack for cost efficiency.

🛒 Select your Wire Dia × Outer Dia × Length and Pack Quantity above, then add to cart.