Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
When a project demands consistent return force in a compact footprint, finding the right compression spring can be frustrating — wrong wire diameter, wrong free length, or a material that corrodes at the first sign of moisture. These 1mm wire diameter compression springs are engineered for makers, hobbyists, and small-batch manufacturers who need a dependable, dimensionally accurate spring without ordering in bulk.
Each spring is cold-wound from spring steel wire with a nominal wire diameter of 1mm (0.039 in). Outer diameters span 5mm to 25mm (0.20–0.98 in) and free lengths range from 10mm to 50mm (0.39–1.97 in), giving you 186 size combinations to match your exact bore and travel requirements. Springs are sold in packs of 10 pieces.
Typical use cases include 3D printer bed leveling mechanisms requiring a 1mm wire compression spring, RC car suspension tuning with small-OD return springs, electronic button and switch assemblies needing a compact pressure spring for DIY builds, and jig or fixture clamping systems where consistent preload is critical.
Nominal 1mm (0.039 in) wire diameter across all variants ensures uniform spring rate characteristics within the same wire gauge family.
OD options from 5mm to 25mm and free lengths from 10mm to 50mm — 186 combinations available so you can match bore and stroke precisely.
Cold-wound from spring steel wire, offering good tensile strength and fatigue resistance for cyclic compression applications.
Ends are typically closed to provide a flat seating surface, reducing lateral buckling tendency and improving load distribution on mating parts.
Each order ships as a 10-piece set — enough for prototyping, small-batch production, or keeping spares on hand without over-ordering.
Compact dimensions suit 3D printer assemblies, RC vehicles, electronic switches, and fixture clamping — wherever a small-diameter pressure spring for DIY is needed.
| Wire Diameter | 1mm (0.039 in) |
|---|---|
| Outer Diameter (OD) | 5mm – 25mm (0.20 – 0.98 in) — See variant options |
| Free Length | 10mm – 50mm (0.39 – 1.97 in) — See variant options |
| Material | Spring Steel |
| Spring Type | Compression (coil) |
| End Type | Closed (typically closed & ground) |
| Surface Finish | See variant options |
| Spring Rate | See variant options |
| Pack Quantity | 10 Pcs |
| Weight (per pack) | See variant options |
Measure the bore or housing inner diameter your spring must fit inside — the spring OD should be 0.5–1mm smaller than the bore for clearance. For free length, select a spring that is longer than your required compressed length plus your desired travel (stroke). Use the variant selector above to browse all available OD × Length combinations.
Spring rate varies by OD and free length combination. Shorter springs with smaller OD tend to have higher rates; longer springs with larger OD are softer. Exact spring rate data is not listed per variant — if your application requires a specific load at a defined deflection, please contact us to confirm before ordering.
These springs are made from spring steel, which offers moderate corrosion resistance suitable for indoor and dry environments. For humid, wet, or chemically exposed environments, consider stainless steel springs instead. If you need stainless steel variants, contact us to check availability.
These springs are well-suited for 3D printer bed leveling, RC car and drone suspension, electronic push-button mechanisms, jig and fixture clamping, pen and stylus assemblies, valve return mechanisms, and general DIY maker projects requiring a compact 1mm wire compression spring.
Spring steel performs reliably in typical ambient temperatures (roughly −20°C to +120°C / −4°F to +248°F). Prolonged exposure to temperatures above this range or outdoor moisture may reduce fatigue life. For high-temperature or outdoor applications, contact us to discuss material alternatives.
The 10-piece pack is ideal for prototyping, testing fit, or small-batch builds. If you need larger quantities for production runs or want to keep a stock of spares, simply increase the quantity at checkout. For bulk or wholesale inquiries, contact us directly for pricing.
The variant label format is Wire Diameter × Outer Diameter × Free Length, all in millimeters. For example, "1x8x30mm" means: wire diameter = 1mm, outer diameter = 8mm, free length = 30mm. Select the combination that matches your housing bore and required travel.
