Compression Spring 13-20mm Outer Dia. & 10-50mm Length & 1.2 Wire Dia. Pressure
Compression Spring 13-20mm Outer Dia. & 10-50mm Length & 1.2 Wire Dia. Pressure
Compression Spring 13-20mm Outer Dia. & 10-50mm Length & 1.2 Wire Dia. Pressure
Compression Spring 13-20mm Outer Dia. & 10-50mm Length & 1.2 Wire Dia. Pressure
Compression Spring 13-20mm Outer Dia. & 10-50mm Length & 1.2 Wire Dia. Pressure
Compression Spring 13-20mm Outer Dia. & 10-50mm Length & 1.2 Wire Dia. Pressure
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Compression Spring 13-20mm Outer Dia. & 10-50mm Length & 1.2 Wire Dia. PressureCompression Spring 13-20mm Outer Dia. & 10-50mm Length & 1.2 Wire Dia. PressureCompression Spring 13-20mm Outer Dia. & 10-50mm Length & 1.2 Wire Dia. PressureCompression Spring 13-20mm Outer Dia. & 10-50mm Length & 1.2 Wire Dia. PressureCompression Spring 13-20mm Outer Dia. & 10-50mm Length & 1.2 Wire Dia. PressureCompression Spring 13-20mm Outer Dia. & 10-50mm Length & 1.2 Wire Dia. Pressure

Compression Spring 13-20mm Outer Dia. & 10-50mm Length & 1.2 Wire Dia. Pressure

HomeDIYer
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By HomeDIYer®

Price:
$3.70 USD
Stock:
In stock (500 units), ready to be shipped

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Description

Compression Spring 1.2mm Wire Dia. — Reliable Pressure for DIY & Mechanical Projects

When a project demands consistent return force and precise fit, finding the right compression spring can be frustrating — wrong wire diameter, wrong free length, or a coil that collapses under load. These compression springs are engineered for makers, hobbyists, small workshops, and automation builders who need a dependable, multi-size selection without ordering from a specialty supplier.

Each spring is wound from 1.2mm wire diameter steel with an outer diameter ranging from 13mm to 20mm (approximately 0.51" to 0.79") and a free length from 10mm to 50mm (approximately 0.39" to 1.97"). The coil body is finished with a consistent pitch and squared ends to ensure stable seating on flat surfaces or inside bored housings.

These compression springs are well-suited for DIY tool mechanisms requiring spring-loaded return action, light-duty automation fixtures and jig assemblies, and electronic enclosure latches or button-return mechanisms where a compact 13–20mm outer diameter compression spring fits within tight spatial constraints.

⚙️ Compatibility: Suitable for spring seats, bored housings, and guide rods with inner clearance matching the selected outer diameter. Verify free length and spring rate against your load requirements before ordering.

✅ Key Features of These Compression Springs

🔩
1.2mm Wire Diameter

Consistent wire gauge across all size variants ensures predictable spring rate and deflection behavior for light-to-medium load applications.

📐
13–20mm Outer Diameter Range

Eight outer diameter options (13, 14, 15, 16, 17, 18, 19, 20mm) let you match the spring to your housing bore or guide rod without custom fabrication.

📏
10–50mm Free Length Selection

Nine free length options from 10mm to 50mm in 5mm increments give you fine control over travel distance and compressed height in your assembly.

🔄
Squared & Ground-Style Ends

End coils are closed and squared to provide a flat bearing surface, reducing lateral buckling and improving load alignment in guided applications.

📦
Flexible Pack Quantities

Available in 10, 30, or 50-piece packs — order a small trial quantity or stock up for production runs and repair kits without overpaying per unit.

🛠️
Broad Application Compatibility

Fits common DIY tool return mechanisms, jig clamps, enclosure latches, and light automation fixtures where a compact compression spring with 13–20mm OD is required.

📐 Technical Specifications — Compression Spring

Wire Diameter 1.2mm
Outer Diameter (OD) 13mm – 20mm (0.51" – 0.79")
Free Length 10mm – 50mm (0.39" – 1.97")
End Type Closed & Squared
Spring Type Compression
Material See variant options
Surface Finish See variant options
Spring Rate See variant options
Pack Quantity 10 Pcs / 30 Pcs / 50 Pcs
Coil Direction Right-hand wound (typical)

❓ Frequently Asked Questions

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

Measure the inner diameter of your housing bore or the outer diameter of your guide rod. For a housing-mounted spring, the OD should be 0.5–1.5mm smaller than the bore to allow free movement. For a rod-guided spring, the inner diameter (OD minus twice the wire diameter) should be 0.5–1mm larger than the rod. Use the variant selector to pick the OD that fits your clearance requirements.

What free length should I select for my assembly?

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 travel distance you need. For example, if you need 15mm of travel and a 20mm working height, choose a free length of at least 35mm. The 10–50mm range in 5mm increments covers most compact mechanism requirements.

How strong are these springs — what load can they handle?

Spring rate depends on the specific OD and free length combination selected. A 1.2mm wire diameter spring is suited for light-to-medium loads typical of return mechanisms, latches, and jig clamps. For precise load calculations, use the spring rate formula or contact us with your deflection and load requirements so we can confirm suitability before you order.

Are these springs corrosion resistant?

The corrosion resistance depends on the material and surface finish of the specific variant. If your application involves moisture, outdoor exposure, or chemical contact, please contact us to confirm the material specification for your chosen size before ordering. For indoor dry environments, standard steel springs perform reliably over extended use.

Can I use these springs in automated machinery or jig fixtures?

Yes. These compression springs are commonly used in light automation fixtures, jig clamps, and return mechanisms where a compact 13–20mm OD spring provides consistent restoring force. Ensure the spring rate and travel distance match your fixture's load and stroke requirements. For high-cycle or high-load industrial machinery, verify the fatigue life with your engineering team.

Which pack size should I order — 10, 30, or 50 pieces?

The 10-piece pack is ideal for prototyping, repair, or single-project use. The 30-piece pack suits small production runs or workshop stock where you need spares on hand. The 50-piece pack offers the best per-unit value for recurring production, repair kits, or stocking multiple sizes across a project range.

How do I confirm the spring fits before committing to a large quantity?

We recommend ordering the 10-piece pack of your target size first to verify fit, travel, and load performance in your actual assembly. Once confirmed, you can reorder in 30 or 50-piece quantities for better per-unit pricing. Check the OD, free length, and wire diameter against your design drawings before placing a bulk order.

🛒 Select your size (wire dia. × outer dia.), length, and quantity above, then add to cart.

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