Description:* Rectangular section, closed-end design. Die springs are primarily used in die machinery, For Plastic Injection.* The loading grade of die springs in various colors (from lightest load to extra heavy load): yellow, blue, red, green, brown.* In addition, because die springs are well suited for high stress applications, they are also suitable for a variety of other applications as well. Specification:* Product Name: Compression Die Spring* Load Type: Extra Heavy load* Color: Brown* Hole Diameter(Outer Diameter): 14mm/0.55"* Inner Diameter (tolerance +0.5mm): 7mm/0.28"* Free Length: 20mm/0.79" (+/- 2mm)* Max compression rate: 20%* Material: spring steel* Surface treatment: Paint Package Content:* 10Pcs x Compression Die Spring
