0.3mm to 0.7mm Wire Dia Hook Extension Tension Spring Springs Steel Small Spring

Spring's Length Is Measured When It Is in Its Natural State (Not Being Compressed or Expanded) Including Hooks for Expansion Spring

🀅 Spring's diameter is an outside measurement (OD) unless stated otherwise

🀅 To work out inside diameter of a spring: Inside Diameter = Diameter - (2 x Wire Diameter)

🀅 [Sturdy & Durable] : Made of Higher-strength Manganese Steel Material for Durability, the Extension Spring Is Rust and Abrasion-resistant, and Has Good Toughness, Strong Load-bearing Capacity and Good Mechanical Properties Which Can Be Used for a Long Time.

🀅 [Features] : the Extension Spring Has Great Elasticity Properties, Can Give Resistance to a Pulling Force, Reduce Shock and Vibration of Machinery, and Can Also Be Connecting Component to Increase Tension.

🀅 [Good Choice] : the Extension Spring Is Widely Used for Industrial Equipment, Construction Machinery, Household Appliance, Mechanical Equipment Etc. Also Suitable for Home Repair Such As Garage Doors, Sofas, Tables, Chairs, Recliner and More.

🀅 [Installation] : Easy to Install, with a Single Hook at the Ends of the Spring, Just Connect It Directly to Machinery and Other Components.