{"product_id":"norton-closers-1601690-surface-mounted-door-closer","title":"Norton Closers 1601690 Surface Mounted Door Closer","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe NORTON CLOSERS 1601690 is an adjustable, medium-duty surface mounted door closer finished in dark bronze and supplied with sex nuts for secure mounting. It uses a rack and pinion hydraulic mechanism with valve-controlled backcheck, allowing the installer to tune closing speed, latching speed, and backcheck resistance independently at the job site. The aluminum alloy body keeps weight low while maintaining structural integrity. At 6.7 pounds and measuring 12.1 inches long by 5.1 inches wide by 3.7 inches tall, this unit fits standard commercial and light commercial door frames without major frame modification.\u003c\/p\u003e\n\u003cp\u003eThis closer is suited for medium-duty interior and light exterior door applications in commercial buildings, office suites, schools, and healthcare facilities. The adjustable valve system accommodates a range of door weights and widths, making it a practical choice for retrofit projects as well as new construction installs. The dark bronze finish coordinates with standard architectural hardware in bronze or oil-rubbed finishes. Sex nuts are included, allowing for through-bolt installation where door construction requires it.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eRack and pinion hydraulic mechanism with independent speed adjustment valves\u003c\/li\u003e\n  \u003cli\u003eValve-controlled backcheck adjustment included\u003c\/li\u003e\n  \u003cli\u003eAluminum alloy body construction for reduced weight and corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eDark bronze finish for architectural coordination\u003c\/li\u003e\n  \u003cli\u003eSex nuts included for through-bolt mounting applications\u003c\/li\u003e\n  \u003cli\u003eMedium-duty rating suitable for standard commercial door traffic\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style surface mounted door closer replacement or new-install unit for medium-duty commercial door applications where a rack and pinion hydraulic closer with adjustable backcheck is specified.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by a licensed door hardware technician or general contractor following the door and frame manufacturer's template instructions. Verify door handing, swing direction, and frame material before drilling; the sex nuts require a clear through-bolt path in the door or frame. Adjust closing speed, latching speed, and backcheck valves only after the closer is fully mounted and the door is hung at final position. Consult applicable building and fire codes, including NFPA 80 where fire-rated assemblies are involved, to confirm required closing force and latching requirements.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 6.7 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 12.1 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 5.1 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 3.7 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDuty Rating\u003c\/strong\u003e: Medium Duty\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: Surface Mounted\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Dark Bronze\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Material\u003c\/strong\u003e: Aluminum Alloy\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded Hardware\u003c\/strong\u003e: Sex Nuts\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSales Unit\u003c\/strong\u003e: Each\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: NORTON CLOSERS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1601690\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NORTON","offers":[{"title":"Default Title","offer_id":51562649944370,"sku":"1601690","price":139.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ed2c98b3a15c15e96b389c3fe5557adc.jpg?v=1786481556","url":"https:\/\/voomisupply.com\/products\/norton-closers-1601690-surface-mounted-door-closer","provider":"Voomi Supply","version":"1.0","type":"link"}