Compression Spring 1.2mm Wire Dia 8mm - 13mm OD Small Pressure Springs

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Compression Spring 1.2mm Wire Dia 8mm - 13mm OD Small Pressure Springs

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By HomeDIYer®

Size（WireDiameter x OuterDiameter x Length(mm)):: 1.2 x 8 x 10mm

Quantity(Pcs):: 5

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$4.03 USD

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In stock (500 units), ready to be shipped

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Compression Spring 1.2mm Wire — Reliable Small Pressure Springs for Precision Applications

When a mechanism fails because a tiny spring loses tension or snaps under repeated load, the whole assembly stops working. Makers, repair technicians, and hobbyists who work with compact mechanisms need a dependable source of small-format compression springs in exact dimensions — not approximate substitutes. These 1.2mm wire diameter compression springs are stocked in outer diameters from 8mm to 13mm (0.31" to 0.51") and free lengths from 10mm to 305mm (0.39" to 12.0"), giving you the precision fit your project demands.

Each spring is formed from 1.2mm wire diameter round wire, wound into a cylindrical coil body. Outer diameters span 8mm, 9mm, 10mm, 11mm, 12mm, and 13mm; free lengths range from 10mm (0.39") up to 305mm (12.0"). The closed-end coil geometry distributes load evenly across the coil body, maintaining consistent spring rate across the compression stroke.

Typical use cases include small appliance repair (replacing worn return springs in switches and latches), DIY mechanical prototypes requiring compact compression elements, pen and stylus mechanisms needing 8–10mm OD springs, and light-duty industrial fixtures where a 1.2mm wire compression spring fits a recessed pocket. Long-tail applications include "small compression spring for electronics repair," "miniature coil spring 8mm OD," and "replacement pressure spring 1.2mm wire."

🔧 Compatibility: Suitable for spring pockets and bores sized to accept 8mm–13mm OD cylindrical springs. Verify your bore inner diameter, pocket depth, and required free length before ordering. Wire diameter 1.2mm; select the correct OD and length variant for your application.

✅ Key Features of These Compression Springs

📐 Precise Wire Diameter

Consistent 1.2mm wire diameter across all variants ensures predictable spring rate and load capacity for compact mechanism design.

🔩 Wide OD Range: 8mm–13mm

Six outer diameter options (8, 9, 10, 11, 12, 13mm / 0.31"–0.51") cover the most common small-format spring pocket sizes in DIY and repair work.

📏 Extensive Length Selection

Free lengths from 10mm to 305mm (0.39" to 12.0") let you match the exact travel and preload your assembly requires without cutting or shimming.

⚙️ Closed-End Coil Construction

Closed ends provide a flat seating surface for stable load transfer, reducing lateral deflection during compression cycles.

🛡️ Consistent Spring Rate

Uniform coil pitch and wire diameter deliver a linear spring rate, making force calculations straightforward for prototype and repair applications.

📦 Flexible Quantity Options

Available in packs of 1, 3, 5, or 10 pieces — order exactly what you need for a single repair or a small production run.

📐 Technical Specifications — Compression Springs

Wire Diameter	1.2mm (0.047")
Outer Diameter (OD)	8mm / 9mm / 10mm / 11mm / 12mm / 13mm (0.31"–0.51")
Inner Diameter (ID)	See variant options
Free Length	10mm – 305mm (0.39" – 12.0") — see variant options
Coil Type	Cylindrical compression coil
End Type	Closed ends
Coil Direction	See variant options
Material	See variant options
Surface Finish	See variant options
Spring Rate	See variant options
Max Load Capacity	See variant options
Available Quantities	1 / 3 / 5 / 10 pcs per order

❓ Frequently Asked Questions

How do I choose the right OD and length for my application?

Measure the inner diameter of the spring pocket or bore your spring will sit in — the spring OD should be slightly smaller than the bore to allow free movement. Then measure the available cavity depth and your required compressed length to determine the free length you need. For example, if your bore is 10.5mm, a 10mm OD spring is a good fit.

What is the spring rate of these 1.2mm wire compression springs?

Spring rate varies by OD and free length combination. Shorter springs with smaller OD tend to have a higher spring rate (stiffer), while longer springs with larger OD are softer. Please contact us to confirm the spring rate for your specific variant if your application requires a precise load value.

Are these springs corrosion-resistant?

Corrosion resistance depends on the material and surface finish of the specific variant. If your application involves moisture or outdoor exposure, please contact us to confirm the material specification before ordering. For indoor or dry-environment use, standard carbon steel springs are typically suitable.

Can I use these springs in outdoor or wet environments?

For outdoor or humid environments, a stainless steel or coated variant is recommended. Please contact us to confirm material availability for your required size. Standard uncoated springs are best suited for dry, indoor applications such as electronics, appliances, and light mechanical assemblies.

What applications are these small compression springs suitable for?

These springs are well-suited for pen and stylus mechanisms, small appliance return springs, DIY prototype assemblies, latch and switch mechanisms, light-duty fixtures, and hobby robotics. The 8mm–13mm OD range covers most compact spring pockets found in consumer electronics and small mechanical devices.

How do I decide between ordering 1, 3, 5, or 10 pieces?

For a single repair or prototype, 1 or 3 pieces is usually sufficient. If you are building a small batch of assemblies or want spares on hand, 5 or 10 pieces offers better value per unit. Check the variant pricing — larger quantity packs are priced to reflect the per-piece savings.

What is the difference between free length and compressed length?

Free length is the natural, unloaded length of the spring. Compressed length (solid height) is the minimum length when all coils are touching. Your assembly must accommodate the free length when unloaded and must not compress the spring below its solid height during operation, as this can permanently deform the spring.

🛒 Select your Size (Wire Diameter × OD × Length) and 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

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

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Compression Spring 1.2mm Wire Dia 8mm - 13mm OD Small Pressure Springs

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Description

Compression Spring 1.2mm Wire — Reliable Small Pressure Springs for Precision Applications

✅ Key Features of These Compression Springs

📐 Technical Specifications — Compression Springs

❓ Frequently Asked Questions

Compression Spring 1.2mm Wire Dia 8mm - 13mm OD Small Pressure Springs

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