{"product_id":"national-marker-n221721-zinc-eye-eye-turnbuckle","title":"National Marker N221721 Zinc Eye Eye Turnbuckle","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe NATIONAL MARKER N221721 is a 3\/16-inch by 5-1\/2-inch eye-and-eye turnbuckle with a zinc finish, part of the 2170BC catalog series. The hex-shaped body is manufactured from aluminum, while the eyes are steel, giving the assembly a combination of light weight and tensile strength at the connection points. Turnbuckles of this type are used to tension wire rope, cable, or rod assemblies by rotating the body to draw the two end fittings together or push them apart. Installation is performed by trade workers involved in rigging, structural bracing, theatrical rigging, or utility line work.\u003c\/p\u003e\n\u003cp\u003eThis turnbuckle is suited for light-duty tensioning applications where a compact, corrosion-resistant body is preferred. The aluminum hex body allows for wrench engagement during final tensioning adjustments. The zinc finish provides additional corrosion resistance for both indoor and sheltered outdoor environments. At 3\/16-inch take-up diameter and 5-1\/2-inch overall body length, this fitting is sized for small-diameter cable or rod tensioning tasks common in sign hanging, display rigging, and light structural applications.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eEye-and-eye configuration for direct attachment to cable, wire rope, or rod end fittings on both ends\u003c\/li\u003e\n  \u003cli\u003eHex-shaped aluminum body allows standard wrench engagement for precise tensioning\u003c\/li\u003e\n  \u003cli\u003eZinc finish on aluminum body provides corrosion resistance in indoor and sheltered environments\u003c\/li\u003e\n  \u003cli\u003eSteel eyes deliver added strength at the load-bearing connection points\u003c\/li\u003e\n  \u003cli\u003eCompact 3\/16-inch by 5-1\/2-inch size suits light-duty cable tensioning tasks\u003c\/li\u003e\n  \u003cli\u003ePart of the 2170BC catalog series for straightforward cross-referencing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard eye-and-eye turnbuckle for light-duty cable and wire rope tensioning applications; consult the 2170BC series catalog for full take-up range and load rating details specific to this fitting.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eTurnbuckles should be installed by qualified riggers or trade workers familiar with applicable tensioning and rigging standards. Before adjustment, verify that all connected hardware is properly rated for the intended load. Use a wrench on the hex body for final tensioning, and always install locking wire or jam nuts after reaching the desired tension to prevent back-off under vibration or dynamic loading. Inspect threads and eyes for damage before each use.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Diameter\u003c\/strong\u003e: 3\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Length\u003c\/strong\u003e: 5-1\/2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Shape\u003c\/strong\u003e: Hex\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Material\u003c\/strong\u003e: Aluminum\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEye Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Zinc\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Eye and Eye\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.061 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 00038613124882\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: NATIONAL MARKER\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: N221721\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NATIONAL MARKER","offers":[{"title":"Default Title","offer_id":51345870946610,"sku":"N221721","price":25.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310550415.jpg?v=1782065199","url":"https:\/\/voomisupply.com\/products\/national-marker-n221721-zinc-eye-eye-turnbuckle","provider":"Voomi Supply","version":"1.0","type":"link"}