High-Quality 0.5mm Wire Diameter Torsion Spring Ring Hook Extension Spring - 4mm Outer Diameter, 220mm Length (1Pcs) for Garage Doors, Industrial Machinery, and DIY Projects

Product Parameters: Name：Tension Spring / Extension Spring (Ring Hook)Size：Wire Diameter(0.5mm), Outer Diameter(4mm), Length(120-300mm)Materials: Stainless steelSurface Treatment: UntreatedQuanity: 5Pcs / 2Pcs /1PcsProduct Feature: The tensile spring is made of high-quality 304 stainless steel, the spring is not easy to rust and corrosion resistance; high strength, not easy to deform.

Size：Wire Diameter(0.5mm), Outer Diameter(4mm), Length(120-300mm)

Materials Stainless steel

Surface Treatment Untreated

Quanity 5Pcs / 2Pcs /1Pcs

The tensile spring is made of high-quality 304 stainless steel, the spring is not easy to rust and corrosion resistance; high strength, not easy to deform.