Spec Crossover Center Loop Extension Spring Music Wire Free Lg Wire Dia

Start by measuring the required free length (the overall length when unloaded) that fits your assembly. Then, consider the wire diameter: thicker wire provides higher stiffness and load capacity, while thinner wire offers more flexibility. Use the available ranges (free length from 54.4 mm to 166.9 mm or 2 3/4 in to 6 1/2 in; wire dia from 0.9 mm to 2.2 mm or 0.026 in to 0.177 in) to narrow down o

The family includes extension springs with crossover center loops, made of music wire. Free lengths range from 54.4 mm to 166.9 mm (or 2 3/4 in to 6 1/2 in), and wire diameters range from 0.9 mm to 2.2 mm (or 0.026 in to 0.177 in). They are available in packs of 2, 3, 5, or 10 pieces.