Unique Bargains Die Spring, 5 Pack 35mm OD 55mm Long Spiral Stamping Light Load Compression Die Springs, Blue

Hole Diameter(Outer Diameter): 35mm/1.38"; Inner Diameter (tolerance +0.5mm): 17.5mm/0.69"; Free Length: 55mm/2.17" (+/- 2mm)||Max Compression Rate: 40%; Maximum Load: 1618N; Color: Blue; Load Type: Light Load; Material: Spring Steel||Rectangular section, closed-end design. Die springs are primarily used in die machinery equipment, for plastic injection 3D printer electric part.||Made of spring steel material, the surface is blue painted, not easy to rust, and more durable.||Package Content: 5pcs x Compression Die Spring