1.8mm Wire Dia Compression Spring 17-25mm Dia 15-200mm Length A2 Stainless Steel

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1.8mm Wire Dia Compression Spring 17-25mm Dia 15-200mm Length A2 Stainless Steel

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Wire Dia x Outer Dia x Length: 1.8x17x15mm

Pack of Quantity(Pcs): 5

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$13.04 USD

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In stock (500 units), ready to be shipped

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1.8mm Wire Compression Springs — A2 Stainless Steel for Reliable, Corrosion-Resistant Performance

Finding a compression spring that holds its load rating without corroding in damp, outdoor, or chemically exposed environments is a persistent challenge for engineers, makers, and workshop professionals. These A2 stainless steel compression springs are engineered for exactly those demanding conditions, offering consistent spring force across a wide range of applications without the rust risk of carbon steel alternatives.

Each spring features a 1.8mm wire diameter and is available in outer diameters from 17mm to 25mm (approximately 0.67" to 0.98") and free lengths from 15mm to 200mm (approximately 0.59" to 7.87"). The A2 (304) stainless steel construction delivers excellent tensile strength and corrosion resistance, with a smooth, close-wound or open-wound coil profile depending on the selected variant.

These compression springs are well-suited for DIY mechanical assemblies, automotive jigs, electronic enclosure latches, valve mechanisms, and precision tooling fixtures — anywhere a compact, corrosion-resistant return force is needed. Long-tail use cases include replacement springs for garden equipment, custom 3D-printed spring housings, and light-duty industrial automation components.

🔧 Compatibility: Suitable for standard spring seats and bores accepting 17–25mm OD springs. Verify free length and spring rate against your application before ordering. Select your exact Wire Dia × OD × Length combination from the variant options above.

✅ Key Features of These A2 Stainless Steel Compression Springs

🦾 A2 (304) Stainless Steel Construction

Manufactured from A2 grade stainless steel for strong corrosion resistance in wet, humid, and mildly acidic environments — outlasting standard carbon steel springs in outdoor and marine-adjacent applications.

📐 Wide Size Range — 1.8mm Wire, 17–25mm OD, 15–200mm Length

Available across a broad matrix of outer diameters and free lengths, making it straightforward to find the exact spring geometry your project requires without custom fabrication.

⚖️ Consistent Spring Rate & Load Tolerance

Precision-wound to maintain uniform coil spacing and consistent spring rate across the compression stroke, reducing variability in load-sensitive assemblies.

🔄 Flexible Pack Quantities

Order in packs of 1, 2, 5, 10, or 20 pieces — ideal whether you need a single replacement or a batch for production runs and prototyping.

🏗️ Versatile Application Fit

Compatible with a wide range of mechanical assemblies including valve springs, latch mechanisms, jig fixtures, electronic enclosures, and DIY automation projects.

✂️ Clean Finish, No Coating Required

The natural A2 stainless finish requires no additional plating or coating, keeping the spring profile true to dimension and eliminating coating-thickness tolerance concerns.

📐 Technical Specifications — Compression Spring

Material	A2 (304) Stainless Steel
Wire Diameter	1.8mm (0.071")
Outer Diameter (OD)	17mm – 25mm (0.67" – 0.98")
Free Length	15mm – 200mm (0.59" – 7.87")
Spring Type	Compression
Coil Direction	See variant options
Spring Rate	See variant options
End Type	See variant options
Surface Finish	Natural stainless, uncoated
Pack Quantity	1 / 2 / 5 / 10 / 20 pcs (select above)

❓ Frequently Asked Questions

How do I choose the right size compression spring for my application?

Start with the outer diameter (OD) your bore or spring seat can accept, then select a free length slightly longer than your required compressed height plus travel distance. The 1.8mm wire diameter suits light-to-medium load applications. If you are unsure, contact us to confirm the spring rate for your chosen variant.

What is A2 stainless steel and how does it compare to carbon steel springs?

A2 stainless steel (also known as 304 stainless) contains chromium and nickel, giving it strong resistance to rust and oxidation. Carbon steel springs are stronger per unit weight but will corrode without protective coatings. A2 stainless is the preferred choice for outdoor, marine-adjacent, food-contact, or humid indoor environments.

Are these springs suitable for outdoor or wet environments?

Yes. A2 stainless steel provides reliable corrosion resistance in rain, humidity, and mild chemical exposure. For highly aggressive environments such as saltwater immersion or strong acids, A4 (316) stainless would be more appropriate — please contact us if you need guidance.

What outer diameters and lengths are available?

Outer diameters range from 17mm to 25mm, and free lengths range from 15mm to 200mm. Use the variant selector above to browse all available Wire Dia × OD × Length combinations. Not all OD and length combinations are available — check the dropdown for exact options.

Can I use these springs in a 3D-printed housing or custom fixture?

Yes. These springs are commonly used in custom 3D-printed enclosures, jigs, and fixtures. Ensure your housing bore is at least 0.5–1mm larger than the spring OD to allow free compression without binding. The uncoated stainless finish keeps the outer diameter true to the listed specification.

What pack sizes are available and which should I order?

Packs of 1, 2, 5, 10, and 20 pieces are available. For prototyping or single repairs, a pack of 1 or 2 is sufficient. For production runs or batch builds, packs of 10 or 20 offer better value per piece. Select your pack size using the "Pack of Quantity (Pcs)" option above.

What is the spring rate for these compression springs?

Spring rate varies by OD and free length combination. Longer springs with the same wire and OD will have a lower spring rate (softer), while shorter springs will be stiffer. Exact spring rate data is available on request — contact us with your selected variant dimensions and we will provide the specification.

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

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These o rings are a great for my ear tunnels

These o rings are a great for my ear tunnels, always loosing one here and there, I always have a new ones in the drawer. Being silicone, don't have any reactions compared to standard rubber ones I purchased at hardware stores, plus much less expensive. Purchased 16mm I'd to use on 19mm tunnels, and stay on great, might be able to get away with 17mm rings, but really happy with my choice.

Will never order from these folks again

I waited a long time and that’s all I received was the eyebolt with no threaded rod attached to it

Perfect they are really made well and I used them for my car

Perfect they are really made well and I used them for my car. The only thing I had a great for us. It took three weeks to get here. So shipping was slow.

did not include wing nuts

Hi Scott, thank you for your feedback. We're sorry for any inconvenience caused. Please get in touch with us directly, and we'll assist you. Thanks for shopping with HomeDIYer!

Haven't received the order yet! It's been over

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1.8mm Wire Dia Compression Spring 17-25mm Dia 15-200mm Length A2 Stainless Steel

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Description

1.8mm Wire Compression Springs — A2 Stainless Steel for Reliable, Corrosion-Resistant Performance

✅ Key Features of These A2 Stainless Steel Compression Springs

📐 Technical Specifications — Compression Spring

❓ Frequently Asked Questions

1.8mm Wire Dia Compression Spring 17-25mm Dia 15-200mm Length A2 Stainless Steel

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