10 Pack 0.4mm Wire Diameter, 4mm Outer Diameter, 50mm Length Stainless Steel Compression Springs For Ballpoint Pens And Home Repairs, 304 Stainless Steel Rustproof Pen Pressure Springs, Silver

Ten-Pack 0.4mm Wire Stainless Steel Compression Springs 50mm
✔️ 0.4mm wire, 4mm OD, 50mm long, 304 stainless steel

The 10-pack includes compact compression springs built from 304 stainless steel, offering rust resistance and long-term durability. These springs are ideal for ballpoint pens, DIY projects, home repairs, small appliances, and hobby gear where reliable tension and return action are needed.

✅ Wire diameter: 0.4 mm (0.02")
✅ Outer diameter: 4 mm (0.16")
✅ Length: 50 mm (1.97")
✅ Material: 304 stainless steel, rust-proof
✅ Pack size: 10 pieces
✅ Open coil design with ample spacing for good shock absorption

💡 What is a long-lasting stainless steel compression spring used for in everyday devices? These handy springs deliver reliable tension in compact devices. - Handy in ballpoint pens, small tools, and DIY projects requiring reliable return force.
- 304 stainless steel offers rust resistance for indoor/outdoor use.
- 0.4mm wire and 4mm OD fit tight spaces while maintaining consistent compression.