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  • Extension Spring
  • Product›
  • Extension Spring
  • Extension Spring
    Extension Spring
    Extension Spring

    Spring resisting tensile loads with hooks.

    100
    Minimum order quantity: 100 pieces
    From: $0.08 - $4
    Specifications
    Specifications
    application / industryAutomotive, Equipment
    direction of windingRight Hand
    end typeHook, Loop, Eye
    free length (mm)2030405075100150
    heat treatmentStress Relieved
    inner diameter id (mm)4, 6, 8, 10, 12, 16, 20
    load at specified length (n)5–300
    load typeExtension
    materialMusic Wire, Carbon Steel, Stainless Steel
    mounting styleHooked
    number of active coils8, 10, 12
    operating temperature (°c)-40 to 120
    outer diameter od (mm)6, 8, 10, 12, 16, 20, 25, 30
    solid length (mm)—
    spring functionEnergy Storage
    spring rate (n/mm)0.5–30
    spring shapeCylindrical
    standard / specificationASTM A228
    surface finish / coatingZinc Plated, Black Oxide
    wire diameter (mm)0.6, 0.8, 1, 1.2, 1.6, 2, 2.5, 3, 4