Sizes: Outer Diameter*Inner Diameter*Length
Outer diameter :8mm - 50mm
Inner diameter: 4 mm - 25 mm
Length: 15mm - 500 mm
Material : Spring Steel
1.Smooth surface without burr, high-quality manufacturing, cost-effective
2.Made of high-quality spring steel, precision machining, good elasticity, high rigidity and durability.
3.The surface is reinforced and has a strong structure and long service life.
Yellow-TF (Lightest Loading): Can be compressed to 42% of the total length
Blue-TL (Light Loading): Can be compressed to 52% of the total length
Red-TM (Medium Loading): Can be compressed to 62% of the total length
Green-TH (heavy load): Can be compressed to 72% of the total length
Brown-TB (overweight): Can be compressed to 76% of the total length
Small load (yellow) < light load (blue) < medium load (red) < heavy load (green) < + heavy load (tan)Application:Die spring is widely used in stamping die, metal die casting die, plastic die and other elastic motion precision mechanical equipment, automobile and other fields.
Note: yellow and blue are mainly used for plastic mold assembly, while red, green and Tan are mainly used for hardware assembly.
Package included: according to your choice. Select your requirements from the drop down menu above.
Hello Dear Customer: we have been engaged in online sales of hardware fasteners for more than 10 years, if you need a large number of or customized hardware products, please contact us, we can provide good prices and better service.

