{"product_id":"best-af80j-top-jamb-flat-form-arm-hd8000","title":"BEST AF80J Top Jamb Flat Form Arm – HD8000 Door Closer | 4–8 Inch Reveal","description":"\u003cp\u003e\u003cstrong\u003eBEST AF80J Top Jamb Flat Form Arm\u003c\/strong\u003e is a manufacturer-designated replacement and accessory arm for the \u003cstrong\u003eBEST HD8000 Series heavy-duty surface door closers\u003c\/strong\u003e. Designed for \u003cstrong\u003etop-jamb (push-side) installations with a 4\"–8\" reveal\u003c\/strong\u003e, this complete flat-form arm assembly helps contractors and facility maintenance teams select the proper closer arm when standard mounting geometry will not fit.\u003c\/p\u003e\n\u003cp\u003eThe AF80J is intended for commercial door openings with a deeper frame reveal. It provides the connection between a compatible HD8000 closer body and the door in the specified top-jamb installation. It is suitable for repair, replacement, and new-installation applications where the manufacturer's template calls for an AF80J arm.\u003c\/p\u003e\n\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBEST HD8000 compatibility:\u003c\/strong\u003e Specifically listed for HD8000 Series surface door closers; not a universal arm for all BEST closer families.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTop-jamb mounting:\u003c\/strong\u003e Designed for appropriate push-side top-jamb applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4\"–8\" reveal:\u003c\/strong\u003e Intended for commercial door openings with a 4- to 8-inch frame reveal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlat-form design:\u003c\/strong\u003e Manufacturer-specified arm geometry for proper operation in its intended mounting arrangement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete arm configuration:\u003c\/strong\u003e Replacement arm assembly, rather than a complete hydraulic closer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommercial service use:\u003c\/strong\u003e Suitable for replacement, retrofit, and door closer maintenance projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e BEST (dormakaba group)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e AF80J\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Top-jamb flat-form door closer arm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Closer Series:\u003c\/strong\u003e BEST HD8000 only\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Top jamb \/ push side\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecified Reveal:\u003c\/strong\u003e 4\"–8\" (102–203 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArm Function:\u003c\/strong\u003e Standard flat-form arm; not a designated hold-open arm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Specify the required architectural finish when ordering\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoor Closer Body Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCommon Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCommercial hollow metal and wood doors equipped with compatible BEST HD8000 closers\u003c\/li\u003e\n\u003cli\u003eInstitutional, educational, healthcare, office, and industrial facilities\u003c\/li\u003e\n\u003cli\u003eCloser arm replacements and commercial door maintenance\u003c\/li\u003e\n\u003cli\u003eTop-jamb installations with a deeper 4\"–8\" reveal\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAF80J vs. Other BEST Arms\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAF80J\u003c\/strong\u003e is the HD8000 top-jamb flat-form arm for 4\"–8\" reveals. \u003cstrong\u003eAF80P\u003c\/strong\u003e is the parallel flat-form arm configuration. \u003cstrong\u003eFHJ\u003c\/strong\u003e is the separate top-jamb friction hold-open option. Choose the arm specified by the installation template rather than assuming these models are interchangeable.\u003c\/p\u003e\n\u003ch2\u003eInstallation \u0026amp; Ordering Notes\u003c\/h2\u003e\n\u003cp\u003eBefore ordering, verify the existing closer is a BEST HD8000 Series model, confirm the reveal measurement and top-jamb installation geometry, and check the manufacturer's mounting template. Select a finish that coordinates with the existing closer and hardware. Hardware and accessories included in the supplied package should be verified with the distributor.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eArm only:\u003c\/strong\u003e This listing does not include the HD8000 hydraulic closer body or cover. Shipping weight and carton dimensions should be confirmed before purchase or fulfillment.\u003c\/p\u003e\n\u003ch2\u003eWhy Choose the BEST AF80J?\u003c\/h2\u003e\n\u003cp\u003eThe BEST AF80J provides the manufacturer-designated flat-form arm solution for compatible HD8000 top-jamb door closer installations with a 4\"–8\" reveal, helping maintain proper arm fit and operation in challenging commercial openings.\u003c\/p\u003e\n\u003ch3\u003eModel \u0026amp; Configuration Buying Guide\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eProduct:\u003c\/strong\u003e BEST AF80J Top Jamb Flat Form Arm – HD8000 Door Closer | 4–8 Inch Reveal. \u003cstrong\u003eManufacturer\/distributor designation:\u003c\/strong\u003e BEST. This product is part of the Door Closer Arm category and should be selected by its actual factory ordering code, intended application and installed door hardware. Use the exact SKU when placing a replacement or construction order.\u003c\/p\u003e\n\u003ch4\u003eAvailable SKUs and Configurations\u003c\/h4\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eShopify SKU\u003c\/th\u003e\n\u003cth\u003eConfigured Option\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003eBEST-AF80J-689\u003c\/td\u003e\n\u003ctd\u003eDefault Title\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe arm assembly must match the exact \u003cstrong\u003ecloser model, mounting location, door swing, frame reveal, and opening angle\u003c\/strong\u003e. A regular or top-jamb arm is not a substitute for a parallel arm or a stop\/track arrangement. The model in this listing is an \u003cstrong\u003earm or arm kit\u003c\/strong\u003e; a complete hydraulic closer body is not included unless the existing description explicitly specifies otherwise.\u003c\/p\u003e\n \u003ch4\u003eModel-Specific Features\u003c\/h4\u003e\u003cp\u003eCheck whether this model provides \u003cstrong\u003ehold-open, non-hold-open, spring stop, cushioned Door Saver, plunger, or track\u003c\/strong\u003e operation. Use the exact product title and SKU when matching the existing arm to the door hardware schedule; physical mounting dimensions and compatible closer body series differ by arm family.\u003c\/p\u003e\n \u003ch4\u003eInstaller and Replacement Checklist\u003c\/h4\u003e\u003col\u003e\n\u003cli\u003eIdentify the existing closer body and confirm the named compatible 7000\/8000, HD8000, or EHD9000 series as applicable.\u003c\/li\u003e\n\u003cli\u003eMeasure reveal and top-rail\/soffit clearances; identify push-side vs pull-side mounting.\u003c\/li\u003e\n\u003cli\u003eCheck required fasteners, arm shoe, bracket, parallel plate, spindle\/shaft and stop components before ordering.\u003c\/li\u003e\n\u003cli\u003eObserve opening-angle limits and available frame clearance; confirm backcheck and door stop requirements for heavy-traffic doors.\u003c\/li\u003e\n\u003cli\u003eVerify mechanical hold-open is permitted at the opening; fire-rated doors may require an approved automatic-release arrangement.\u003c\/li\u003e\n\u003cli\u003eRetain a compatible closer's hydraulic adjustment schedule and follow current manufacturer installation instructions.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eCommercial Door Worx Order Verification\u003c\/h4\u003e\u003cp\u003eBefore purchasing, confirm the existing opening's required hardware function and ordered SKU, and verify the current manufacturer's mounting or wiring instructions. Separate \u003cem\u003einstallation, keying, operator integration, compliance, and accessories\u003c\/em\u003e may be needed beyond the item described. Quantities, finish choices and selling prices are determined by the selected store variant.\u003c\/p\u003e","brand":"BEST","offers":[{"title":"Default Title","offer_id":67984934797527,"sku":"BEST-AF80J-689","price":100.63,"currency_code":"USD","in_stock":true}],"url":"https:\/\/shop.commercialdoorworx.com\/products\/best-af80j-top-jamb-flat-form-arm-hd8000","provider":"Commercial Door Worx","version":"1.0","type":"link"}