Compression Spring Pressure Spring A2 Stainles Steel Wire Dia 1.8mm Ø 10mm-17mm

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Compression Spring Pressure Spring A2 Stainles Steel Wire Dia 1.8mm Ø 10mm-17mm

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By HomeDIYer®

Size:: 1.8 x 10mm (ID:6.4)

Any length: 10mm

Packaging (pcs): 10

Price:

$15.86 USD

Stock:

In stock (500 units), ready to be shipped

Quantity:

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Compression Spring A2 Stainless Steel — Reliable Pressure Spring for Precision DIY & Mechanical Applications

When a worn-out or undersized spring causes your mechanism to fail mid-operation, finding an exact replacement quickly becomes critical. Whether you're a maker, maintenance technician, or small-shop engineer, these A2 stainless steel compression springs give you the dimensional precision and corrosion resistance needed to restore or build reliable spring-loaded assemblies without guesswork.

Each spring is manufactured from A2 (304) stainless steel wire with a diameter of 1.8 mm (0.071 in). The outer diameter ranges from 10 mm to 17 mm (0.39 in to 0.67 in), and free lengths span 10 mm to 120 mm (0.39 in to 4.72 in) across available variants. The open-coil, closed-end design delivers consistent linear force across the compression stroke.

These compression springs are well-suited for DIY tool repair and jig building, light industrial automation and valve assemblies, and electronics enclosure latching mechanisms — all applications where a compact stainless steel pressure spring with predictable spring rate is essential.

🔩 Compatible with standard spring seats and bores sized for 10–17 mm OD. Verify free length and spring rate against your application before ordering.

✅ Key Features of These A2 Stainless Steel Compression Springs

🧲A2 (304) Stainless Steel Construction — Resists rust, oxidation, and mild chemical exposure, making these springs suitable for both indoor and outdoor mechanical assemblies.
📏1.8 mm Wire Diameter — Consistent wire gauge across all variants ensures uniform coil geometry and predictable load-deflection behavior for engineering calculations.
🔄Wide OD Range: 10–17 mm — Eight outer diameter options (10.4 mm to 17.4 mm inner diameter reference) let you match the spring to your bore or spring seat without custom fabrication.
📐Free Lengths from 10 mm to 120 mm — Eighteen length options in a single listing cover a broad range of travel requirements, from compact latches to longer-stroke return mechanisms.
📦Flexible Pack Quantities — Available in packs of 2, 5, or 10 pieces so you can order exactly what your project or maintenance stock requires.
⚙️Closed & Ground Ends — Flat, stable end coils seat squarely against mating surfaces, reducing lateral buckling and improving load alignment in guided spring applications.

📐 Technical Specifications — Compression Spring

Material	A2 Stainless Steel (304)
Wire Diameter	1.8 mm (0.071 in)
Outer Diameter (OD)	10 mm – 17 mm (0.39 in – 0.67 in)
Free Length	10 mm – 120 mm (0.39 in – 4.72 in) — See variant options
Spring Type	Compression / Pressure Spring
End Type	Closed & Ground
Coil Direction	Right-hand (standard)
Finish	Natural Stainless (uncoated)
Spring Rate	See variant options
Pack Quantity	2 / 5 / 10 pcs — See variant options
Standard	DIN 2098 / ISO 10243 (comparable)

❓ Frequently Asked Questions

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

Measure the bore or spring seat your spring will sit in. The spring's outer diameter should be 0.5–1 mm smaller than the bore to allow free movement without binding. For a guided rod application, the inner diameter of the spring should be 0.5–1 mm larger than the rod. Use the variant selector to match OD (10–17 mm) to your measured clearance.

What free length should I select?

Free length is the uncompressed length of the spring. Select a free length that is longer than your required working length by at least the amount of travel (deflection) your application needs. For example, if you need 20 mm of travel and a 30 mm working height, choose a free length of at least 50 mm. Available lengths range from 10 mm to 120 mm.

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

Yes. A2 (304) stainless steel offers good resistance to atmospheric corrosion, moisture, and mild chemicals. It is suitable for outdoor enclosures, garden equipment, and light marine environments. For highly aggressive saltwater or chemical exposure, A4 (316) stainless steel would be a stronger choice — contact us if you need that grade.

What is the spring rate, and how does it affect my project?

Spring rate (N/mm) describes how much force is required to compress the spring by 1 mm. A higher spring rate means a stiffer spring. The rate varies by OD and free length combination. If you have a specific load requirement, please contact us with your target load and deflection values so we can confirm the best variant for your application.

Can I use these springs as return springs in automated or motorized mechanisms?

Yes. These compression springs are commonly used as return springs in pneumatic valves, solenoid actuators, push-button mechanisms, and light automation fixtures. Ensure the spring is guided (either by a rod through the ID or a bore around the OD) to prevent lateral buckling under repeated cycling.

How do I decide between ordering 2, 5, or 10 pieces?

Order 2 pcs for a single repair or prototype build where you want a spare. Choose 5 pcs for small batch projects or workshop stock. Select 10 pcs for production runs, maintenance kits, or when you anticipate regular replacement cycles. Larger packs offer better per-unit value.

Are these compatible with standard spring plungers and ball-detent assemblies?

Compatibility depends on the bore diameter and required spring force of your plunger assembly. Check the OD of the spring against the plunger housing bore, and verify the free length fits within the plunger body. The 10–14 mm OD variants are most commonly used in standard spring plunger and ball-detent applications.

🛒 Select your size (OD × free 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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Compression Spring Pressure Spring A2 Stainles Steel Wire Dia 1.8mm Ø 10mm-17mm

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Description

Compression Spring A2 Stainless Steel — Reliable Pressure Spring for Precision DIY & Mechanical Applications

✅ Key Features of These A2 Stainless Steel Compression Springs

📐 Technical Specifications — Compression Spring

❓ Frequently Asked Questions

Compression Spring Pressure Spring A2 Stainles Steel Wire Dia 1.8mm Ø 10mm-17mm

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