{"product_id":"k2-systems-rail-connector-splice-cr-44-x-mill-4000051","title":"K2 Systems Rail Connector Splice CR 44-X Mill 4000051","description":"\u003ch2\u003e\u003cstrong\u003eK2 Systems Rail Connector Splice CR 44-X Mill 4000051\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe K2 Systems Rail Connector CR 44-X 4000051 is a structural external rail splice designed to securely connect sections of K2 CrossRail 44-X in photovoltaic mounting systems. Its external mounting design allows the connector to join adjacent rail sections without occupying the internal rail channel, leaving valuable space available for wire management and other system components.\u003c\/p\u003e\n\u003cp\u003eManufactured from aluminum with a mill finish, the connector attaches to the CrossRail using two stainless steel T-bolts and serrated flange nuts. K2 identifies the 4000051 as a true structural connector specifically engineered for the CrossRail 44-X platform.\u003c\/p\u003e\n\u003cp\u003eThe connector measures approximately 177.8 mm (7.00 in) long and provides a simple slide-in installation method. Its combination of structural strength, corrosion-resistant materials, and streamlined installation makes it a dependable rail-splicing solution for K2 rooftop solar mounting systems. \u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Technology\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStructural Rail Connection\u003c\/strong\u003e\u003cbr\u003eDesigned as a true structural connector for joining two sections of K2 CrossRail 44-X.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCrossRail 44-X Compatibility\u003c\/strong\u003e\u003cbr\u003ePurpose-built for use with K2 CrossRail 44-X mounting rails.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eExternal Connector Design\u003c\/strong\u003e\u003cbr\u003eMounts externally to the rail rather than occupying the internal channel, helping preserve internal rail space for wire management.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSimple Slide-In Assembly\u003c\/strong\u003e\u003cbr\u003eDesigned for straightforward positioning and installation between adjoining rail sections.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTwo T-Bolt Attachment Points\u003c\/strong\u003e\u003cbr\u003eSecures to the rail using two M10 × 20 stainless steel T-bolts and matching serrated flange nuts.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAluminum Construction\u003c\/strong\u003e\u003cbr\u003eManufactured from durable aluminum for a strong yet lightweight solar mounting connection.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMill Finish\u003c\/strong\u003e\u003cbr\u003eNatural mill aluminum finish matches compatible mill-finish CrossRail components.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e25-Year Warranty\u003c\/strong\u003e\u003cbr\u003eBacked by a 25-year K2 Systems manufacturer warranty.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFlorida Product Approval\u003c\/strong\u003e\u003cbr\u003eListed under Florida Product Approval FL#46869 as part of the K2 mounting system documentation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eBest Uses\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCrossRail 44-X Rail Extensions\u003c\/strong\u003e\u003cbr\u003eIdeal for structurally joining two CrossRail 44-X sections when a longer continuous rail run is required.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eResidential Rooftop Solar\u003c\/strong\u003e\u003cbr\u003eSuitable for K2 CrossRail rooftop PV mounting systems using mill-finish 44-X rails.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLong Rail Runs\u003c\/strong\u003e\u003cbr\u003eProvides a secure structural splice where individual rail lengths must be connected to span larger arrays.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWire-Management-Friendly Installations\u003c\/strong\u003e\u003cbr\u003eThe external connector leaves the internal CrossRail channel available for routing and organizing PV wiring.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eProduct Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex w-fit flex-col-reverse\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eK2 Systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct\u003c\/td\u003e\n\u003ctd\u003eRail Connector CR 44-X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number \/ SKU\u003c\/td\u003e\n\u003ctd\u003e4000051\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eStructural Rail Connector \/ Rail Splice\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Rail\u003c\/td\u003e\n\u003ctd\u003eK2 CrossRail 44-X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector Location\u003c\/td\u003e\n\u003ctd\u003eExternal Rail Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStructural Connector\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eMill\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e177.8 mm (7.00 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApprox. Maximum Profile Width\u003c\/td\u003e\n\u003ctd\u003e45.45 mm (1.79 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProfile Dimension\u003c\/td\u003e\n\u003ctd\u003e42.8 mm (1.69 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFastener Slot Height\u003c\/td\u003e\n\u003ctd\u003e11.5 mm (0.45 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFastener Spacing\u003c\/td\u003e\n\u003ctd\u003e75.5 mm (2.97 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAttachment Hardware\u003c\/td\u003e\n\u003ctd\u003e2 × T-Bolts and 2 × Serrated Flange Nuts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eT-Bolt Size\u003c\/td\u003e\n\u003ctd\u003eM10 × 20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eT-Bolt Material\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNut Type\u003c\/td\u003e\n\u003ctd\u003eM10 Serrated Hex Flange Nut\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNut Socket Size\u003c\/td\u003e\n\u003ctd\u003e1\/2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation Method\u003c\/td\u003e\n\u003ctd\u003eExternal Slide-In Structural Connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBox Quantity\u003c\/td\u003e\n\u003ctd\u003e20 Sets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlorida Product Approval\u003c\/td\u003e\n\u003ctd\u003eFL#46869\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e25 Years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eAbout K2 Systems:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eK2 Systems develops engineered solar mounting solutions for rooftop and ground-mounted photovoltaic installations. Its CrossRail platform combines structural aluminum rails, roof attachments, clamps, grounding components, wire-management accessories, and engineered connection hardware designed to simplify professional solar installations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eStructural Rail Splicing for K2 CrossRail 44-X\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cstrong\u003e \u003c\/strong\u003eK2 Systems Rail Connector CR 44-X 4000051 provides a durable structural connection between adjoining CrossRail 44-X sections. With its aluminum construction, external mounting design, stainless steel hardware, simple slide-in assembly, and 25-year warranty, it provides a reliable solution for extending rail runs while keeping the internal rail channel available for cable management.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWhy Buy From US Solar Supplier\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eUS Solar Supplier is an American-founded company based in Kentucky dedicated to offering top-quality solar components from trusted manufacturers. We provide competitive pricing, dependable inventory, and products backed by warranties you can trust.\u003c\/p\u003e\n\u003cp\u003eOur inventory is updated daily with the latest solar technologies, and our experienced team is ready to assist with product selection, system design, and installation guidance.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eNeed Assistance?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eHave questions before you order? Call \u003cstrong\u003e1-800-230-7004\u003c\/strong\u003e to speak with our knowledgeable support team. We’re here to help with product details, compatibility questions, or purchasing support.\u003c\/p\u003e","brand":"K2 Systems","offers":[{"title":"Default Title","offer_id":44148029325610,"sku":"USMS100-0019","price":3.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/3408\/1340\/products\/KU21699.jpg?v=1675243753","url":"https:\/\/ussolarsupplier.com\/products\/k2-systems-rail-connector-splice-cr-44-x-mill-4000051","provider":"US Solar Supplier","version":"1.0","type":"link"}