Compression Springs Wire Dia 0.8mm 0.9mm 1.0mm Stainless Steel Pressure Spring

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Compression Springs Wire Dia 0.8mm 0.9mm 1.0mm Stainless Steel Pressure Spring

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By HomeDIYer®

Sizes (Wire Diameter x Outer Diameter): 0.8mm x 6mm

Length: 10mm

Packing QTY (Piece): 10 PCS

Price:

$9.23 USD

Stock:

In stock (500 units), ready to be shipped

Quantity:

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Stainless Steel Compression Springs — Precision Fit for Small-Scale Mechanical Projects

When a loose mechanism, a rattling assembly, or a failed return stroke costs you time and frustration, the root cause is often an undersized or low-grade spring. Makers, engineers, and workshop hobbyists who work with precision instruments, electronics enclosures, jigs, and light machinery need springs they can rely on — consistent force, exact dimensions, and corrosion resistance that lasts.

These compression springs are wound from stainless steel wire in diameters of 0.8 mm, 0.9 mm, and 1.0 mm (approximately 0.031"–0.039"), with outer diameters ranging from 5 mm to 18 mm (approx. 0.20"–0.71") and free lengths from 10 mm to 50 mm (approx. 0.39"–1.97"). Each pack contains 10 pieces of a single size combination for easy inventory management.

Typical applications include spring-loaded pen mechanisms and stylus assemblies, PCB test probe return springs, small valve and switch actuators, 3D printer extruder tensioners, and RC model suspension components — anywhere a compact, corrosion-resistant compression spring is needed.

🔧 Compatible with standard spring seats and bores sized for 5–18 mm OD springs. Verify your bore ID and seat depth before selecting a size.

✅ Key Features of These Stainless Steel Compression Springs

🔩 Stainless Steel Construction

Wound from stainless steel wire for reliable corrosion resistance in humid, wet, or chemically exposed environments — suitable for both indoor and outdoor applications.

📐 Wide Size Range in One Listing

Wire diameters of 0.8 mm, 0.9 mm, and 1.0 mm combined with outer diameters from 5 mm to 18 mm give you the flexibility to find the exact fit without sourcing from multiple suppliers.

📏 Multiple Free Lengths Available

Choose from free lengths of 10 mm through 50 mm (in 5 mm increments) to match your travel and load requirements precisely.

⚙️ Consistent Coil Geometry

Uniform pitch and closed ends ensure stable seating on flat spring plates and inside bored housings, reducing lateral deflection under load.

📦 10-Piece Packs for Prototyping and Repair

Each pack contains 10 identical springs, giving you spares for prototyping iterations, replacements, or multi-axis assemblies without over-ordering.

🛠️ Versatile Across DIY and Light Industrial Use

Suited for 3D printer builds, RC models, electronic test fixtures, pen mechanisms, small valves, and general workshop jigs where compact spring force is required.

📐 Technical Specifications — Compression Springs

Material	Stainless Steel
Wire Diameter	0.8 mm / 0.9 mm / 1.0 mm (see variant options)
Outer Diameter (OD)	5 mm – 18 mm (see variant options)
Free Length	10 mm – 50 mm (see variant options)
End Type	Closed ends (typical for this wire range)
Spring Type	Compression
Surface Finish	Natural stainless (no coating)
Load Capacity	See variant options
Packing Quantity	10 pieces per pack
Unit of Measure	Metric (mm)

❓ Frequently Asked Questions

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

Start with your bore or housing inner diameter — the spring's OD should be 0.5–1 mm smaller than the bore for a sliding fit. Then select wire diameter based on the load you need: thicker wire (1.0 mm) produces more force for a given OD and length, while thinner wire (0.8 mm) gives a softer, more compliant spring. If you are unsure, contact us to confirm before ordering.

What free length should I select?

The free length should be longer than your required working length. A common rule of thumb is to allow at least 20–30% compression travel from free length to working length. For example, if your mechanism compresses the spring by 10 mm, choose a free length of at least 13–15 mm above your working length.

Are these springs suitable for outdoor or wet environments?

Yes. Stainless steel offers good resistance to moisture, mild acids, and general atmospheric corrosion, making these springs suitable for outdoor fixtures, marine-adjacent applications, and humid workshop environments. For highly aggressive chemical exposure, please verify compatibility with your specific environment.

Can I use these springs in 3D printers or RC models?

Absolutely. The 0.8–1.0 mm wire range and 5–18 mm OD range cover common 3D printer extruder tensioner springs, bed leveling springs, and RC model suspension springs. Select the size that matches your printer or model's spring seat dimensions.

How strong are these compression springs?

Spring force (rate) depends on the combination of wire diameter, outer diameter, and free length. Thicker wire and smaller OD produce a stiffer spring; thinner wire and larger OD produce a softer spring. Exact spring rates vary by size — see variant options or contact us if you need a specific load rating confirmed.

Do the springs come in different quantities?

Currently each pack contains 10 pieces of a single size combination. This is ideal for prototyping, repair kits, and small-batch builds. If you need larger quantities, please contact us to discuss bulk options.

Are the ends of these springs closed or open?

These springs feature closed ends, which provide a flat seating surface for stable contact against spring plates, housings, and plungers. Closed ends reduce lateral tipping and are the standard choice for precision mechanical assemblies.

🛒 Select your wire diameter, outer diameter, and length 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

Haven't received the order yet! It's been over 19 days!

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Compression Springs Wire Dia 0.8mm 0.9mm 1.0mm Stainless Steel Pressure Spring

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Description

Stainless Steel Compression Springs — Precision Fit for Small-Scale Mechanical Projects

✅ Key Features of These Stainless Steel Compression Springs

📐 Technical Specifications — Compression Springs

❓ Frequently Asked Questions

Compression Springs Wire Dia 0.8mm 0.9mm 1.0mm Stainless Steel Pressure Spring

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