Compression Spring Various Size 6-22mm Diameter & 10-100mm Length - 1.2mm Wire

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Compression Spring Various Size 6-22mm Diameter & 10-100mm Length - 1.2mm Wire

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By HomeDIYer®

Wire diameter x Outer diameter x Length (mm): 1.2mm x 6mm x 10mm

Amount (pieces): 10 pieces

Price:

$3.71 USD

Stock:

In stock (500 units), ready to be shipped

Quantity:

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Compression Spring 1.2mm Wire — Compact Sizes for Precision Mechanical Applications

When a standard spring kit falls short and you need an exact fit, sourcing the right compression spring becomes a real bottleneck — especially for makers, engineers, and repair technicians working with compact mechanisms. These compression springs with 1.2mm wire diameter are stocked across a wide dimensional matrix to eliminate that friction and get your project moving.

Each spring is wound from 1.2mm carbon steel wire with a consistent helical coil structure. Outer diameters span 6mm to 22mm (approximately 0.24 in to 0.87 in), and free lengths range from 10mm to 100mm (approximately 0.39 in to 3.94 in). Sold in sets of 10 pieces per order.

Typical use cases include compression spring replacement in small appliances and hand tools, spring-loaded plunger and detent mechanisms in robotics and automation, and return-force elements in jigs, fixtures, and custom mechanical assemblies requiring compact compression spring sizing.

🔧 Compatible with standard spring seats and bores sized for 6–22mm OD. Verify free length and spring rate against your application before ordering.

✅ Key Features of These Compression Springs

📐 Wide Size Matrix

Outer diameters from 6mm to 22mm and lengths from 10mm to 100mm — over 200 size combinations available in a single listing.

🔩 1.2mm Wire Diameter

Consistent 1.2mm wire gauge across all variants ensures predictable spring rate behavior for light-to-medium load applications.

⚙️ Carbon Steel Construction

Wound from carbon steel wire for reliable elastic return force in dry indoor mechanical environments.

📦 10-Piece Sets

Each order ships as a set of 10 identical springs — practical for prototyping, repair stock, or small-batch production runs.

🎯 Closed Ends

Springs feature closed (ground or plain-closed) ends for stable seating on flat surfaces and inside standard spring pockets.

🛠️ Broad Application Fit

Suited for DIY mechanisms, robotics actuators, pen and valve assemblies, and general-purpose spring-loaded return applications.

📐 Technical Specifications — Compression Springs

Wire Diameter	1.2mm (0.047 in)
Outer Diameter Range	6mm – 22mm (0.24 in – 0.87 in)
Free Length Range	10mm – 100mm (0.39 in – 3.94 in)
Material	Carbon steel
End Type	Closed ends (plain-closed)
Coil Direction	Right-hand wound
Surface Finish	See variant options
Spring Rate	See variant options
Load Capacity	See variant options
Quantity per Order	10 pieces

❓ Frequently Asked Questions

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

Measure the bore or housing your spring will sit inside, then select an outer diameter (OD) that is 0.5–1mm smaller than the bore for a sliding fit, or match the OD to your spring seat if the spring sits on a post. The inner diameter (ID) is approximately OD minus 2× wire diameter (OD − 2.4mm for this 1.2mm wire series).

What free length should I select?

Free length is the uncompressed length of the spring. Choose a free length longer than your required working stroke plus the compressed (solid) height. As a conservative estimate, solid height for these springs is approximately the number of coils × 1.2mm. If you are unsure, select a longer spring and trim your assembly accordingly.

What material are these springs made from, and are they corrosion resistant?

These springs are wound from carbon steel wire. Carbon steel provides good tensile strength and consistent spring rate for dry indoor environments. It is not recommended for prolonged exposure to moisture, salt spray, or corrosive chemicals. For outdoor or wet environments, consider stainless steel spring alternatives.

What load can a 1.2mm wire compression spring handle?

The load capacity depends on the specific OD and free length combination selected. Thinner wire (1.2mm) and smaller OD springs are suited for light-to-medium loads — typically in the range of a few Newtons to tens of Newtons depending on deflection. For precise spring rate and load data for a specific variant, contact us to confirm.

Are these springs compatible with standard spring plungers and detent mechanisms?

Yes. The 6–10mm OD variants are commonly used in spring plunger assemblies, pen mechanisms, and small detent applications. Verify the OD against your plunger bore and confirm the free length provides adequate preload for your design. The closed ends ensure stable seating without additional machining.

Can I use these springs in robotics or automation projects?

Yes. The compact size range (6–22mm OD, 10–100mm length) makes these springs well-suited for return-force elements in servo linkages, gripper mechanisms, and spring-loaded actuators in robotics and small automation systems. Select the OD and length that match your mechanism's travel and force requirements.

Why buy a 10-piece set instead of individual springs?

Compression springs are consumable components — they fatigue over time or may be lost during assembly. Having a set of 10 ensures you have spares on hand for prototyping iterations, repair stock, or small-batch production without reordering delays. The per-unit cost is also lower when purchased in sets.

🛒 Select your wire diameter × outer diameter × length combination above, then add to cart.