Wire Dia 1.2mm Compression Spring 5-16mm Diameter&10-100mm Length Pressure Small
Wire Dia 1.2mm Compression Spring 5-16mm Diameter&10-100mm Length Pressure Small
Wire Dia 1.2mm Compression Spring 5-16mm Diameter&10-100mm Length Pressure Small
Wire Dia 1.2mm Compression Spring 5-16mm Diameter&10-100mm Length Pressure Small
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Wire Dia 1.2mm Compression Spring 5-16mm Diameter&10-100mm Length Pressure SmallWire Dia 1.2mm Compression Spring 5-16mm Diameter&10-100mm Length Pressure SmallWire Dia 1.2mm Compression Spring 5-16mm Diameter&10-100mm Length Pressure SmallWire Dia 1.2mm Compression Spring 5-16mm Diameter&10-100mm Length Pressure Small

Wire Dia 1.2mm Compression Spring 5-16mm Diameter&10-100mm Length Pressure Small

HomeDIYer
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By HomeDIYer®

Price:
$2.03 USD
Stock:
In stock (500 units), ready to be shipped

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Description

1.2mm Wire Compression Springs — Precise Pressure Control for DIY & Mechanical Projects

When a mechanism fails because a spring loses tension or snaps under load, the entire assembly stops working — a frustrating setback for makers, engineers, and workshop hobbyists alike. These 1.2mm wire diameter compression springs are engineered for consistent return force and reliable performance across a wide range of light-duty to medium-duty applications.

Each spring is formed from 1.2mm wire with an outer diameter ranging from 10mm to 20mm (approximately 0.39" to 0.79") and a free length from 60mm to 100mm (approximately 2.36" to 3.94"). The coil body is constructed from carbon steel with a zinc-plated or natural finish depending on the variant selected.

These compression springs are well-suited for DIY repair projects requiring small-diameter return springs, mechanical assemblies such as valve actuators and latch mechanisms, and prototyping applications where consistent spring force over repeated cycles is critical.

⚙️ Compatibility: Suitable for spring seats, bores, and housings designed for 10–20mm OD springs. Verify free length and spring rate against your application requirements before ordering.

✅ Key Features of These 1.2mm Wire Compression Springs

  • 🔩1.2mm Wire Diameter — Consistent wire gauge across all variants for predictable spring rate and deflection behavior.
  • 📏Multiple OD Options (10–20mm) — Eight outer diameter sizes from 10mm to 20mm (0.39"–0.79") to fit a wide range of spring seats and housings.
  • 📐Length Range 60–100mm — Five free-length options (60 / 70 / 80 / 90 / 100mm) allow precise selection for your travel and preload requirements.
  • 🛡️Carbon Steel Construction — Formed from carbon steel wire for reliable mechanical strength under repeated compression cycles.
  • 📦Flexible Pack Quantities — Available in packs of 1, 5, 10, or 50 pieces to match single-unit repairs or batch production needs.
  • 🔄Closed & Ground Ends (Typical) — End style supports stable seating in standard spring pockets, reducing lateral deflection during compression.

📐 Technical Specifications — Compression Spring

Wire Diameter 1.2mm (0.047")
Outer Diameter (OD) 10mm / 11mm / 12mm / 13mm / 14mm / 16mm / 18mm / 20mm
Free Length 60mm / 70mm / 80mm / 90mm / 100mm
Material Carbon Steel
Finish See variant options
Spring Rate See variant options
End Type Closed ends (typical)
Load Direction Axial compression
Pack Quantity 1 / 5 / 10 / 50 pieces
Application Light-duty to medium-duty mechanical assemblies

❓ Frequently Asked Questions

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

Measure the inner diameter of the spring seat or bore where the spring will sit. The spring's outer diameter should be slightly smaller than the bore to allow free movement without binding. For a shaft-guided spring, the inner diameter of the spring should be slightly larger than the shaft. Use the OD options (10–20mm) to find the closest match to your housing dimensions.

What free length should I select?

Free length is the uncompressed length of the spring. Select a free length that, when compressed to your working height, provides the required spring force. If your assembly has a travel of 20mm and a working height of 50mm, a 70mm free-length spring would be a starting point. Always verify against your calculated spring rate and load requirements.

Are these springs suitable for outdoor or corrosive environments?

These springs are made from carbon steel. Carbon steel offers good mechanical strength but has limited corrosion resistance in wet or chemically aggressive environments. For outdoor or humid applications, consider applying a protective coating after installation, or contact us to confirm finish options for your specific variant.

Can I use these springs in high-temperature applications?

Carbon steel compression springs are generally suitable for temperatures up to approximately 120°C (248°F) before significant loss of spring properties occurs. For applications exceeding this range, a stainless steel or high-temperature alloy spring would be more appropriate. Contact us to confirm suitability for your specific operating conditions.

What is the difference between the pack quantity options?

Pack quantities of 1, 5, 10, and 50 pieces are available for each wire diameter, OD, and length combination. Single-piece packs are ideal for prototyping or one-off repairs. Packs of 5 or 10 suit small batch builds or keeping spares on hand. Packs of 50 are suited for production runs or workshop stock where multiple assemblies require the same spring specification.

How do I verify the spring rate before purchasing?

Spring rate (k) for a helical compression spring can be estimated using the formula: k = (G × d⁴) / (8 × D³ × n), where G is the shear modulus of the material, d is the wire diameter, D is the mean coil diameter, and n is the number of active coils. For carbon steel, G ≈ 79,000 MPa. If you need a confirmed spring rate for your specific variant, please contact us with your selected OD and length.

Are these springs compatible with standard spring testers or fixtures?

Yes. Springs with closed ends seat stably on flat platens used in standard spring testing fixtures. The 10–20mm OD range is compatible with most benchtop spring testers designed for small compression springs. Ensure the tester's platen diameter is larger than the spring's OD for accurate load measurement.

🛒 Select your Wire Diameter, Diameter, and Length & Pack Quantity above, then add to cart.

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