100 Piece Ballpoint Pen Spring Kit 0.4mm Wire Diameter 4mm Outer Diameter 18mm Length Galvanized Steel Silver Springs For Ballpoint Pen Refills Durable Rust Resistant High Precision Small Size For Everyday Repairs

100-Piece Galvanized Ballpoint Pen Spring Kit
✔️ 0.4mm wire diameter, 4mm OD, 18mm length, galvanized steel, silver, 100 pcs

This spring kit is designed for ballpoint pen refills and a variety of small repair tasks. Made from galvanized steel, these springs resist rust and corrosion, delivering reliable performance in everyday devices such as pens, scissors, and tape recorders.

✅ 100 pcs pack for stocking up
✅ Wire diameter: 0.4 mm (0.02"), outer diameter: 4 mm (0.16"), length: 18 mm (0.71")
✅ Material: galvanized steel, silver color, rust-resistant
✅ Great for ballpoint pen refills and small appliance repairs

💡 What is a compression spring used for in ballpoint pens? This handy part helps maintain consistent pressure and reliable ink flow in writing instruments and other small devices. - compression spring for ballpoint pen refills with 0.4 mm wire diameter and 18 mm length - galvanized steel, rust-resistant, silver finish - ideal spare for ballpoint refills and everyday repairs

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