{"product_id":"3-3-4-torsion-spring-283-wire-size","title":"3-3\/4\" Torsion Spring | .283 Wire Size","description":"\u003cp\u003eThis Egyptian coated torsion spring has an inside diameter of 3-3\/4 inches and is used mainly on commercial and heavy residential garage doors. The light blue paint indicates a wire size of .283.\u003c\/p\u003e\n\u003cp\u003eComes installed with 3-3\/4\" cast aluminum stationary and winding cones.\u003c\/p\u003e\n\u003cp\u003eTo find your wire size, measure 20 coils and divide by 20. Matching the paint color is a good double check, but it should not be your only deciding point.\u003c\/p\u003e\n\u003cp\u003eMeasure spring length on the coils only. Do not include the end plugs\/cones in this measurement.\u003c\/p\u003e\n\u003cp\u003eWind is the direction the coils wrap. 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