{"product_id":"tess77221-3100","title":"Extension Spring  TESS-77221  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):0.9Outer Diameter D (mm):8.0Free Height L (mm):50.1Number of Rolls (roll):39.5Mechanical Spring Constant (N\/mm):0.393Allowable Weight (N):18.34Load Height L1 (mm):85.3Initial Tensile Strength (N):4.511Hook Shape: Reverse Round HookHook Counter Azimuth: 180degreesWinding Direction: Right windStainless Steel (SUS304-WPB)\u003c\/p\u003e","brand":"1257496","offers":[{"title":"Default Title","offer_id":37287712358561,"sku":"TESS77221                     3100","price":1209.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0493\/5473\/5777\/products\/TESS77221_3100__MA_4583affa-9d05-4ae7-9ec9-37587cd039bc.jpg?v=1616763872","url":"https:\/\/kital-tools.com\/products\/tess77221-3100","provider":"KITAL","version":"1.0","type":"link"}