{"title":"Coupling Nuts","description":"\u003ch2\u003eCoupling Nuts\u003c\/h2\u003e\n\u003cp\u003eCoupling nuts, also known as extension nuts or long nuts, are specialized female-threaded fasteners used to join two male threads of the same diameter. Commonly paired with \u003ca href=\"\/collections\/threaded-rod\" title=\"Threaded Rod\"\u003ethreaded rod\u003c\/a\u003e, they are vital for extending bolted connections in structural, mechanical, and industrial applications.\u003c\/p\u003e\n\u003cp\u003eThese fasteners are frequently used in tie-down systems, bracing, and framework assemblies where length adjustments or component extensions are required. The hexagonal body design allows for easy tightening and loosening with a standard wrench, providing straightforward installation in the field.\u003c\/p\u003e\n\u003cp\u003eCoupling nuts are available in a variety of finishes, including plain, hot dip galvanized, and zinc-coated to suit environmental and project-specific needs. Stainless steel options offer excellent corrosion resistance, making them ideal for marine, outdoor, or high-moisture applications.\u003c\/p\u003e\n\u003cp\u003eDesigned for durability and compatibility, our coupling nuts deliver reliable performance in both temporary and permanent assemblies.\u003c\/p\u003e","products":[{"product_id":"1-4-x-1-3-4-conquest-a563-coupler-nut","title":"Conquest 1\/4\" x 1-3\/4\"  A563 Coupling Nut - Plain","description":"\u003ch2\u003eConquest A563 Coupling Nut – 1\/4\" x 1-3\/4\" Plain Steel\u003c\/h2\u003e\n\u003cp\u003eThe Conquest 1\/4\" x 1-3\/4\" Coupling Nut is designed for secure rod joining, threading extension, and bolt alignment in mechanical, construction, and maintenance applications. Its plain steel finish and compact form make it an excellent fit for indoor systems where corrosion protection is not required. The internal 1\/4\"-20 threads ensure compatibility with common fasteners for stable and aligned connections.\u003c\/p\u003e\n\n\u003ch2\u003ePlain Finish 1\/4\"-20 Coupling Nut for Threaded Rod and Bolt Extension\u003c\/h2\u003e\n\u003cp\u003eManufactured to ASTM A563 specifications, this coupling nut features precise 20 TPI coarse threads and a hexagonal body for easy tool access. It is best suited for use in non-corrosive environments such as ceiling grids, HVAC framework, or interior rod bracing. Its slim profile and clean threading offer straightforward installation for light-duty, low-vibration applications.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDesigned for Rod Joining and Extension:\u003c\/strong\u003e Joins two 1\/4\"-20 threaded rods or bolts in framing and interior systems.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCarbon Steel Construction:\u003c\/strong\u003e Made to ASTM A563 standards for reliable mechanical strength.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type\/TPI:\u003c\/strong\u003e Internal 1\/4\"-20 coarse threads (20 threads per inch) for accurate alignment and engagement.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorrosion Resistance:\u003c\/strong\u003e Plain finish intended for indoor use or dry, protected installations.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHex Body:\u003c\/strong\u003e Allows easy installation using standard wrenches or sockets.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSuspended ceiling grids and threaded rod extension\u003c\/li\u003e\n  \u003cli\u003eMechanical and HVAC system assembly\u003c\/li\u003e\n  \u003cli\u003eFraming or bracing in non-corrosive environments\u003c\/li\u003e\n  \u003cli\u003eInterior bolt-to-bolt alignment and fastening\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eMatch thread size exactly (1\/4\"-20) for a proper fit.\u003c\/li\u003e\n  \u003cli\u003eHand-start both rod ends before torqueing with tools.\u003c\/li\u003e\n  \u003cli\u003eIdeal for light-duty applications where moisture exposure is minimal.\u003c\/li\u003e\n  \u003cli\u003eFor load-bearing systems, follow torque guidelines and inspect thread engagement length.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eCalifornia Residents: \u003ca style=\"color: black;\" href=\"\/pages\/prop-65\" target=\"_blank\"\u003eWARNING\u003c\/a\u003e\u003c\/b\u003e\u003c\/p\u003e","brand":"US Cargo Control","offers":[{"title":"Default Title","offer_id":44428582486061,"sku":"ACN14-134","price":1.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/2229\/9949\/files\/ACN14-134-1-01.09-Coupler_Nuts_Adaptors-1600x1600_0d1a3743-64c9-479c-8a7c-a20659a950a9.jpg?v=1768411635"},{"product_id":"1-2-to-3-8-x-1-1-4-conquest-reducing-rod-coupler-nut-zinc","title":"Conquest 1\/2\" to 3\/8\" x 1-1\/4\"  Reducing Rod Coupling Nut - Zinc","description":"\u003ch2\u003eConquest Reducing Coupling Nut – 1\/2\" to 3\/8\" x 1-1\/4\" Zinc-Plated Steel\u003c\/h2\u003e\n\u003cp\u003eThe Conquest 1\/2\" to 3\/8\" Reducing Coupling Nut is ideal for adapting between 1\/2\"-13 and 3\/8\"-16 threaded rods in commercial and light structural builds. Zinc-plated for basic corrosion protection, this nut delivers solid engagement for mechanical supports, retrofit framing, and threaded rod assemblies in interior environments.\u003c\/p\u003e\n\n\u003ch2\u003eZinc-Plated 1\/2\"-13 to 3\/8\"-16 Coupling Nut for Mechanical Rod Transitions\u003c\/h2\u003e\n\u003cp\u003eIts 1-1\/4\" length offers solid thread coverage, and the hex body allows for easy torqueing using standard tools. Whether you’re adapting fastener sizes for framing or conduit support, this nut offers a simple, reliable solution without custom fabrications.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eZinc Finish:\u003c\/strong\u003e Protects against oxidation in dry, indoor locations.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Threaded:\u003c\/strong\u003e Designed for use with 1\/2\"-13 and 3\/8\"-16 threaded rods.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Precision:\u003c\/strong\u003e Clean machining for consistent, wobble-free fit.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard Hex Body:\u003c\/strong\u003e Easy to install with wrenches or sockets.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 1-1\/4\" overall for reliable thread engagement and connection strength.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eIndoor rod extension and size conversion\u003c\/li\u003e\n  \u003cli\u003eMechanical system repairs\u003c\/li\u003e\n  \u003cli\u003eHVAC and pipe support retrofits\u003c\/li\u003e\n  \u003cli\u003eThreaded rod anchoring and transitions\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eCalifornia Residents: \u003ca style=\"color: black;\" href=\"\/pages\/prop-65\" target=\"_blank\"\u003eWARNING\u003c\/a\u003e\u003c\/b\u003e\u003c\/p\u003e","brand":"US Cargo Control","offers":[{"title":"Default Title","offer_id":44428582846509,"sku":"ARCN12-38-114Z","price":1.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/2229\/9949\/files\/ARCN12-38-114Z-1-01.09-Coupler_Nuts_Adaptors-1600x1600_b149ca8e-5649-4a5a-9c14-e891899ba68d.jpg?v=1768411575"},{"product_id":"1-2-to-3-8-x-1-1-4-conquest-reducing-rod-coupler-nut-18-8-stainless-steel","title":"Conquest 1\/2\" to 3\/8\" x 1-1\/4\"  Reducing Rod Coupling Nut - 18-8 Stainless Steel","description":"\u003ch2\u003eConquest Reducing Coupling Nut – 1\/2\" to 3\/8\" x 1-1\/4\" Stainless Steel\u003c\/h2\u003e\n\u003cp\u003eThe Conquest Reducing Coupling Nut is designed to connect two different rod diameters—1\/2\"-13 and 3\/8\"-16—in one simple, corrosion-resistant solution. Precision-machined from 18-8 stainless steel, this nut enables seamless transitions between rod sizes in construction, mechanical, and utility systems. It's ideal for applications where strength, fit, and environmental durability are non-negotiable.\u003c\/p\u003e\n\n\u003ch2\u003e18-8 Stainless Steel 1\/2\"-13 to 3\/8\"-16 Reducing Coupling Nut for Rod Connections\u003c\/h2\u003e\n\u003cp\u003eThis reducing nut features a dual-threaded interior, cut to match standard coarse threads for both ends. It provides a reliable connection between dissimilar rod sizes, reducing the need for adapters or custom threading. The corrosion-resistant 18-8 stainless steel construction makes it suitable for both indoor and outdoor environments, including moisture-prone or mildly corrosive locations.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e18-8 Stainless Steel:\u003c\/strong\u003e Delivers long-lasting corrosion resistance for exposed or wet environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual-Thread Design:\u003c\/strong\u003e Connects 1\/2\"-13 rod to 3\/8\"-16 rod without additional adapters or modifications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrecision-Cut Threads:\u003c\/strong\u003e Internal threads are clean and accurate for smooth engagement and reliable torque transfer.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo Special Tools Required:\u003c\/strong\u003e Installs using standard wrenches—ideal for jobsite or field repairs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Profile:\u003c\/strong\u003e Measures 1-1\/4\" long for secure fitment in confined or compact installations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eHVAC and mechanical rod connections\u003c\/li\u003e\n  \u003cli\u003eElectrical conduit and support systems\u003c\/li\u003e\n  \u003cli\u003eLight framing, bracing, or anchor transitions\u003c\/li\u003e\n  \u003cli\u003eGeneral-purpose threaded rod repairs and modifications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eMatch threads exactly: 1\/2\"-13 on one end, 3\/8\"-16 on the other.\u003c\/li\u003e\n  \u003cli\u003eStart threading manually to prevent cross-threading or damage.\u003c\/li\u003e\n  \u003cli\u003eUse thread-locking compound in high-vibration environments.\u003c\/li\u003e\n  \u003cli\u003eTighten with a wrench on the hex flats to specified torque if required.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eCalifornia Residents: \u003ca style=\"color: black;\" href=\"\/pages\/prop-65\" target=\"_blank\"\u003eWARNING\u003c\/a\u003e\u003c\/b\u003e\u003c\/p\u003e","brand":"US Cargo Control","offers":[{"title":"Default Title","offer_id":44428583927853,"sku":"ARCN12-38-114SS","price":4.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/2229\/9949\/files\/ARCN12-38-114SS-1-01.09-Coupler_Nuts_Adaptors-1600x1600_cc8e1dbd-a073-4368-b02e-32e82565b3d6.jpg?v=1768411578"},{"product_id":"3-8-x-1-1-8-conquest-coupler-nut-18-8-stainless-steel","title":"Conquest 3\/8\" x 1-1\/8\"  Coupling Nut - 18-8 Stainless Steel","description":"\u003ch2\u003eConquest Coupling Nut – 3\/8\" x 1-1\/8\" 18-8 Stainless Steel\u003c\/h2\u003e\n\u003cp\u003eThe Conquest 3\/8\" x 1-1\/8\" Coupling Nut in 18-8 stainless steel is engineered to connect or extend threaded rods in harsh or corrosive environments. Designed for long-term durability, it’s an ideal solution for marine, chemical, and outdoor installations where failure is not an option.\u003c\/p\u003e\n\n\u003ch2\u003eMarine-Grade Stainless Steel Coupling Nut for Rod Connections\u003c\/h2\u003e\n\u003cp\u003eMade from 18-8 stainless steel, this coupling nut offers exceptional corrosion resistance and mechanical integrity. The internal threads are precisely cut for smooth engagement and alignment. Whether you're tensioning rods in a structural assembly or supporting HVAC systems, this nut performs reliably in high-demand settings.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e18-8 Stainless Steel Construction:\u003c\/strong\u003e Exceptional resistance to rust, corrosion, and harsh weather, ideal for marine, chemical, and outdoor use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e Fits 3\/8\" diameter threaded rod.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrecision Internal Threads:\u003c\/strong\u003e Engineered for smooth and secure fitment on threaded rods.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Use:\u003c\/strong\u003e Perfect for tensioning systems, threaded rod extensions, industrial machinery, and structural connections.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHex Body:\u003c\/strong\u003e Allows easy tightening with a wrench or socket.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCoastal or marine construction\u003c\/li\u003e\n  \u003cli\u003eHVAC, plumbing, and electrical installations\u003c\/li\u003e\n  \u003cli\u003eIndustrial plant environments\u003c\/li\u003e\n  \u003cli\u003eEquipment mounting and framing\u003c\/li\u003e\n  \u003cli\u003eArchitectural and structural systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eEnsure rod ends are clean and correctly threaded to match the coupling nut.\u003c\/li\u003e\n  \u003cli\u003eStart threading manually to prevent cross-threading.\u003c\/li\u003e\n  \u003cli\u003eUse a wrench on the hex body to tighten to specification.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eCalifornia Residents: \u003ca style=\"color: black;\" href=\"\/pages\/prop-65\" target=\"_blank\"\u003eWARNING\u003c\/a\u003e\u003c\/b\u003e\u003c\/p\u003e","brand":"US Cargo Control","offers":[{"title":"Default Title","offer_id":44428585271341,"sku":"CN38-118SS","price":2.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/2229\/9949\/files\/CN38-118SS-1-01.09-Coupler_Nuts_Adaptors-1600x1600_8d9fa955-f35a-440c-a3f3-55c9cf51fdfd.jpg?v=1768411761"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/2229\/9949\/collections\/coupler_nuts_-_colleciton_image.jpg?v=1767880567","url":"https:\/\/www.uscargocontrol.com\/collections\/coupler-nuts.oembed","provider":"US Cargo Control","version":"1.0","type":"link"}