304 Stainless Steel Compression Spring 2mm Outer Diameter 0.3mm Wire Size 40mm Free Length Silver Tone Pack Of 20 For Small Mechanical Gadgets Electronics Projects And Robotics

Premium 304 stainless steel compression springs, 20-pack
✔️ 2mm OD, 0.3mm wire, 40mm length; 20 pcs per pack, silver

These compression springs are made from 304 stainless steel, delivering strong corrosion resistance and heat tolerance. They’re ideal for small gadgets, electronics projects, robotics, and hobby builds, providing reliable spring force in tight spaces.

✅ Outer diameter: 2 mm (0.08 in)
✅ Wire diameter: 0.3 mm (0.01 in)
✅ Free length: 40 mm (1.56 in)
✅ Material: 304 stainless steel
✅ Pack content: 20 pieces
✅ Finish: silver tone

💡 What is a compression spring used for in compact mechanisms? A quick primer for common uses.

• Absorbs shock and maintains tension in moving parts
• Returns components to resting position after actuation
• Fits in compact spaces with small-diameter coils
• Choosing correct wire gauge and free length affects preload and travel