Fasteners | Springs:

Compression spring: diam. 0.03~8mm (coil shape at springs)

Tension springs: diam. 0.10~4mm (hook shape at random)

Torsion springs: diam. 0.10~4mm (wire forms)

Flat springs: 0.1~1.0mm in thickness and width 10mm max (can be punched)

square wire springs for the above are also available

Power springs 0.4~1.2mm in thickness and width 10mm max

Compression spring: diam. 0.03~8mm (coil shape at springs)