50 Pack Stainless Steel Pen Springs 0.5mm Wire 4mm Outer Diameter 20mm Length High Elasticity Compression Springs For Home Repair DIY Projects Workshop And Industrial Use Rust Resistant Durable Reusable
✔️ 0.5mm wire; 4mm OD; 20mm length; 304 stainless steel springs
These 50-pack stainless steel compression springs are designed for use in a variety of DIY, repair, and workshop applications. Made from 304 stainless steel, they resist rust and corrosion for long-lasting performance in tools, pens, toys, appliances, and electronics.
✅ 50-piece pack included
✅ Material: 304 stainless steel, corrosion-resistant
✅ Size: wire Ø0.5mm, outer Ø4mm, free length 20mm
✅ High elasticity with uniform coil spacing
✅ Applications: workshop repairs, home DIY, pens, toys, appliances, electronics
💡 What is a compression spring used for in mechanical assemblies? Compression springs are handy for storing energy and applying controlled force in devices. - Absorbs shock and vibration while returning to original length in assemblies - Maintains constant preload and uniform force distribution across travel in mechanisms - Handy in pens, DIY projects, toys, small appliances, and electronics
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