Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
When a mechanism fails because a spring is too stiff, too soft, or simply the wrong size, the whole project stalls. Engineers, hobbyists, and repair technicians who need a compact, consistent compression spring with a 1mm wire diameter and 6mm outer diameter will find this stainless steel option a dependable solution across a wide range of builds.
Each spring is formed from stainless steel wire with a 1mm diameter and a 6mm outer diameter (approximately 0.24 in). Free lengths range from 10mm to 50mm (roughly 0.39 in to 1.97 in), giving you the flexibility to match the exact travel and load requirements of your application. Springs are available in packs of 10, 20, or 50 pieces.
Typical use cases include small appliance repair requiring a compact 1mm wire compression spring, robotics and automation builds that need a 6mm OD return spring for actuators, and precision instrument assembly where consistent spring force over repeated cycles is critical.
| Spring Type | Compression |
|---|---|
| Wire Diameter | 1mm (0.039 in) |
| Outer Diameter (OD) | 6mm (0.236 in) |
| Inner Diameter (ID) | Approximately 4mm (0.157 in) |
| Free Length Options | 10 / 15 / 20 / 25 / 30 / 35 / 40 / 45 / 50mm |
| Material | Stainless Steel |
| End Type | See variant options |
| Spring Rate | See variant options |
| Surface Finish | Natural / Uncoated |
| Pack Quantity | 10 PCS / 20 PCS / 50 PCS |
Measure the distance between the two spring seats in your assembly when the mechanism is at rest (uncompressed). Select a free length that is longer than this distance by the amount of preload travel you need. For example, if your seat gap is 20mm and you want 5mm of preload, choose the 25mm variant.
Spring rate depends on wire diameter, OD, and free length. With a fixed 1mm wire and 6mm OD, shorter lengths will have a higher spring rate (stiffer) and longer lengths will be softer. Exact rates vary by length — contact us to confirm if your application requires a specific load value.
Yes. These springs are made from stainless steel, which provides good resistance to rust and oxidation in humid, wet, and mildly corrosive environments. For highly aggressive chemical environments, verify material compatibility with your specific conditions.
With a 6mm outer diameter and 1mm wire diameter, the inner diameter is approximately 4mm (0.157 in). This means any guide rod or pin used inside the spring should be no larger than approximately 3.5–3.8mm to allow free movement without binding.
Stainless steel offers solid corrosion resistance for most outdoor and wet-environment applications. These springs are suitable for garden equipment, outdoor enclosures, and marine-adjacent uses where occasional moisture exposure is expected. Prolonged submersion in saltwater may require additional consideration.
The 10-piece pack is ideal for single-project repairs or prototyping. The 20-piece pack suits small production runs or workshop stock. The 50-piece pack offers the best value per spring for ongoing production, bulk repairs, or stocking multiple length variants at once.
Yes, provided the housing bore is at least 6mm in diameter. The 6mm OD is a common size used in small appliances, electronics, instruments, and light mechanical assemblies. Always verify the bore diameter and seat depth in your specific application before ordering.
