{"product_id":"tess77123-3100","title":"Extension Spring  TESS-77123  TRUSCO","description":"\u003cp\u003eThe mechanical spring wound as a hook with both ends tightened by applying constant tension to the wire rod.A mechanical spring to use in pulling direction.Class 2 of JIS B2704 is applied tolerance of dimensions and spring characteristics.Wire Diameter d (mm):0.40Outer Diameter D (mm):4.4Free Height L (mm):18.1Number of Rolls (roll):24.5Mechanical Spring Constant (N\/mm):0.137Allowable Weight (N):2.89Load Height L1 (mm):33.8Initial Tensile Strength (N):0.677Hook Shape: Reverse Round HookHook Counter Azimuth: 180degreesWinding Direction: Right windStainless Steel (SUS304-WPB)\u003c\/p\u003e","brand":"1257393","offers":[{"title":"Default Title","offer_id":37287700070561,"sku":"TESS77123                     3100","price":2091.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0493\/5473\/5777\/products\/TESS77123_3100__MA_8adf19e4-dd9f-4038-9641-97fcf6dd4e4f.jpg?v=1616763668","url":"https:\/\/kital-tools.com\/products\/tess77123-3100","provider":"KITAL","version":"1.0","type":"link"}