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When a worn-out or undersized spring causes inconsistent force, premature failure, or misalignment in your assembly, finding the right replacement becomes critical. These compression springs are designed for engineers, makers, and repair technicians who need reliable, precisely sized coil springs across a wide dimensional range — without ordering custom parts.
Each spring is a round-wire helical compression spring made from stainless steel wire. Wire diameter ranges from 1.2 mm (approx. 0.047 in) to 3 mm (approx. 0.118 in). Outer diameter (OD) spans 6 mm to 20 mm (approx. 0.24 in to 0.79 in). Free length options run from 10 mm to 200 mm (approx. 0.39 in to 7.87 in). Sold in packs of 2, 5, or 10 pieces depending on the selected variant.
Typical use cases include compression spring replacement in 3D printer Z-axis assemblies, return-force mechanisms in CNC fixtures and jigs, valve and plunger springs in pneumatic or hydraulic tooling, and load-bearing spring seats in robotics end-effectors and automation equipment.
Wire dia 1.2–3 mm, OD 6–20 mm, free length 10–200 mm — covers a broad spectrum of mechanical spring applications in a single listing.
Round stainless steel wire provides corrosion resistance and consistent spring-back force across repeated compression cycles.
Consistent OD and free length across each pack ensures repeatable performance in fixtures, jigs, and automated assemblies.
Available in packs of 2, 5, or 10 pieces — order exactly what your project requires without excess inventory.
Suitable for light-to-medium load applications including return mechanisms, clamping fixtures, valve springs, and sensor mounts.
Standard helical coil geometry fits most off-the-shelf spring seats and bores — no machining required for typical replacement tasks.
| Spring Type | Helical Compression Spring |
|---|---|
| Wire Diameter Range | 1.2 mm – 3 mm (0.047 in – 0.118 in) |
| Outer Diameter (OD) Range | 6 mm – 20 mm (0.24 in – 0.79 in) |
| Free Length Range | 10 mm – 200 mm (0.39 in – 7.87 in) |
| Material | Stainless Steel |
| Wire Cross-Section | Round |
| Coil Direction | See variant options |
| End Type | See variant options |
| Surface Finish | Natural / Uncoated |
| Pack Quantity | 2 / 5 / 10 pcs (see variant options) |
| Spring Rate | See variant options |
| Load Capacity | See variant options |
Match the wire diameter, outer diameter (OD), and free length to your existing spring or spring seat dimensions. The OD must fit inside the bore or over the guide rod with clearance. The free length should be longer than your required working length to ensure adequate compression travel. If replacing a worn spring, measure the original or consult your assembly drawing.
These springs are made from stainless steel round wire. Stainless steel offers good corrosion resistance compared to carbon steel, making it suitable for environments with moderate humidity or exposure to mild chemicals. For highly corrosive or submerged environments, confirm suitability with your application requirements.
Stainless steel construction provides corrosion resistance that makes these springs suitable for outdoor or humid conditions in most general-purpose applications. However, for prolonged exposure to saltwater, strong acids, or industrial chemicals, verify the specific grade of stainless steel meets your environmental requirements before use.
Wire diameter (wire dia) refers to the thickness of the steel wire used to wind the spring coil. Outer diameter (OD) is the overall outside measurement of the coil itself. When fitting a spring into a bore, the OD must be smaller than the bore. When fitting over a guide rod, the inner diameter (ID = OD minus 2× wire dia) must be larger than the rod.
Yes. These compression springs are commonly used in 3D printer Z-axis bed leveling assemblies, CNC fixture clamps, and return mechanisms. Select the wire diameter and OD that match your printer or machine's spring seat specifications. The 1.2 mm wire diameter variants are particularly suited to lighter-load applications such as bed leveling springs.
Pack quantities of 2, 5, or 10 pieces are available depending on the selected size variant. For single-machine repairs, a pack of 2 or 5 is typically sufficient. For production runs, batch builds, or keeping spares on hand, a pack of 10 provides better value per piece. Select your preferred quantity using the Quantity (Pcs) option above.
Spring rate and load capacity vary by wire diameter, OD, free length, and number of active coils. Larger wire diameters and shorter free lengths generally produce stiffer springs with higher load capacity. For precise spring rate data for your selected size, contact us to confirm — or use standard spring rate formulas with the dimensional specifications provided.
