Compression Spring Various 1mm Diameter & 5mm - 305mm Length Pressure Small

Roll over image to zoom in Click on image to zoom

Compression Spring Various 1mm Diameter & 5mm - 305mm Length Pressure Small

HomeDIYer

No reviews

By HomeDIYer®

Sizes: 1x6x10mm

Packing Quantity: 10

Price:

$6.65 USD

Stock:

In stock (500 units), ready to be shipped

Quantity:

Share this product

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

DIY Expert Support

Get fitment advice & recommendations

Mon–Fri 8:30 AM – 8:00 PM

WhatsApp Email Us

24-Hour Fast Ship

Arrives in 3–14 Days

Worldwide Shipping

30-Day Returns

1 tree planted with every purchase

Compression Spring 1mm Wire Diameter — Reliable Pressure for Precision DIY Applications

When a project demands consistent return force in a tight space, finding the right small compression spring can be a real challenge. Hobbyists, makers, electronics repair technicians, and small-workshop engineers all face the same problem: generic spring assortments rarely cover the exact outer diameter and free length needed. These 1mm wire diameter compression springs are stocked in a wide range of sizes to eliminate that guesswork and keep your build moving.

Each spring is manufactured from spring steel wire with a wire diameter of 1mm (0.039 in) and an outer diameter ranging from 6mm to 18mm (0.24 in – 0.71 in). Free lengths span from 5mm to 305mm (0.20 in – 12.0 in), covering both compact and extended-travel applications. Springs are sold in packs of 10, with closed and ground ends for stable seating.

These compression springs suit a broad range of use cases: restoring tactile feedback in push-button mechanisms and keyboard switches, providing return force in DIY jigs and fixtures, maintaining contact pressure in battery holders and electrical connectors, and acting as tension elements in small automation and robotics projects where a compact coil spring for precision mechanisms is required.

⚙️ Compatibility: Suitable for spring-loaded assemblies, push-button mechanisms, battery contacts, electronic enclosures, DIY jigs, and light-duty automation components. Select the outer diameter and free length that match your bore and travel requirements.

✅ Key Features of These 1mm Wire Diameter Compression Springs

📐 Wide Size Range

Outer diameters from 6mm to 18mm and free lengths from 5mm to 305mm — one listing covers dozens of precise size combinations for your exact application.

🔩 1mm Wire Diameter

Consistent 1mm wire cross-section delivers predictable spring rate and deflection behavior across all size variants, critical for repeatable DIY builds.

🛡️ Spring Steel Construction

Made from spring steel wire for reliable elastic recovery, resistance to permanent set under normal operating loads, and durability through repeated compression cycles.

📦 Pack of 10

Each order ships as a pack of 10 identical springs, giving you spares for prototyping, replacements, or multi-position assemblies without reordering.

🎯 Closed & Ground Ends

Closed and ground end coils provide a flat, stable seating surface that reduces lateral buckling and ensures the spring sits squarely in its bore or on its post.

⚡ Broad Application Fit

From push-button return mechanisms and battery contacts to robotics and precision jigs — these small compression springs handle light-to-medium load tasks across electronics and mechanical DIY projects.

📐 Technical Specifications — Compression Springs

Wire Diameter	1mm (0.039 in)
Outer Diameter Range	6mm – 18mm (0.24 in – 0.71 in)
Free Length Range	5mm – 305mm (0.20 in – 12.0 in)
End Type	Closed and ground
Material	Spring steel
Finish	See variant options
Spring Rate	See variant options
Load Capacity	See variant options
Coil Direction	Right-hand (typical)
Quantity per Pack	10 pieces

❓ Frequently Asked Questions

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

Match the outer diameter (OD) to your bore or housing ID, leaving a small clearance (typically 0.5–1mm) so the spring can compress freely without binding. Then select a free length that gives you the travel and preload you need. For a post-guided spring, the inner diameter (ID = OD minus 2× wire diameter) should clear the post with a small gap.

What is the spring rate of these 1mm wire diameter springs?

Spring rate varies by outer diameter and free length — shorter springs with smaller OD are stiffer, while longer springs with larger OD are softer. Exact spring rate values depend on the specific size variant. If you need a precise rate for your design, contact us with your size selection and we can provide further guidance.

Are these springs corrosion-resistant?

These springs are made from spring steel, which offers good mechanical properties but has limited corrosion resistance in wet or humid environments without additional treatment. For indoor, dry, or low-humidity applications they perform reliably. If your application involves moisture or outdoor exposure, consider applying a light protective coating or contact us to confirm suitability.

Can I use these springs in electronic assemblies such as battery contacts or keyboard switches?

Yes. The smaller OD variants (6mm–10mm) and shorter free lengths (10mm–30mm) are well suited for battery contact springs, push-button return mechanisms, and keyboard switch applications where a compact coil spring with consistent return force is needed. Ensure the OD fits within your housing and the free length provides the correct preload.

What does the size format (e.g., 1×8×30mm) mean?

The format is Wire Diameter × Outer Diameter × Free Length, all in millimeters. So 1×8×30mm means: 1mm wire diameter, 8mm outer diameter, 30mm free length. Use this to quickly match the spring to your bore size and required travel.

How many springs are included per order?

Each order includes 10 springs of the selected size. This gives you spares for prototyping, multi-position assemblies, or replacements without needing to place a separate order.

Can these springs be used in robotics or automation projects?

Yes. These small compression springs are commonly used in light-duty automation and robotics applications — for example, as return elements in gripper fingers, contact-force elements in probe fixtures, or preload springs in linear slides. Select the OD and free length that match your mechanism's bore and stroke requirements.

🛒 Select your size and packing quantity above, then add to cart.

91%

(1772)

(128)

(21)

(5)

(17)

283

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!

1 2 3

Compression Spring Various 1mm Diameter & 5mm - 305mm Length Pressure Small

Payment & Security

DIY Expert Support

Description

Compression Spring 1mm Wire Diameter — Reliable Pressure for Precision DIY Applications

✅ Key Features of These 1mm Wire Diameter Compression Springs

📐 Technical Specifications — Compression Springs

❓ Frequently Asked Questions

Compression Spring Various 1mm Diameter & 5mm - 305mm Length Pressure Small

You may also like

Recently viewed

Let customers speak for us