{"product_id":"value-collection-250678-reducing-coupling-nut-3-8-16-x-1-2-13","title":"Value Collection 250678 Reducing Coupling Nut 3\/8-16 X 1\/2-13","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 250678 is a reducing coupling nut designed to join two externally threaded fasteners of different thread sizes. One end accepts a 3\/8-16 thread and the other accepts a 1\/2-13 UNC thread, making it a standard reducing style rather than a same-size coupling. The overall length is 1-1\/4 inches and the width across flats is 5\/8 inches, allowing engagement with a standard open-end or box wrench. Manufactured from Grade 2 steel with a zinc-plated finish for basic corrosion resistance, this coupling nut is suited for light to medium fastening applications in mechanical assemblies, HVAC mounting structures, and general trade work.\u003c\/p\u003e\n\u003cp\u003eThis coupling nut is commonly used when a threaded rod or stud of one diameter must be connected to a bolt or rod of a different thread size. Typical applications include equipment mounting, unistrut and support-structure builds, and other assemblies where thread transition between 3\/8-16 and 1\/2-13 UNC is required. It is installed by hand-start followed by wrench tightening. Right-hand thread direction applies to both ends, consistent with standard UNC fastener practice.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eReduces between 3\/8-16 and 1\/2-13 UNC threads in a single coupling nut\u003c\/li\u003e\n  \u003cli\u003e1-1\/4 inch overall length provides adequate thread engagement on both ends\u003c\/li\u003e\n  \u003cli\u003e5\/8 inch width across flats fits standard open-end and box wrenches\u003c\/li\u003e\n  \u003cli\u003eGrade 2 steel construction for general-purpose fastening loads\u003c\/li\u003e\n  \u003cli\u003eZinc-plated finish provides basic corrosion protection in dry or mildly humid environments\u003c\/li\u003e\n  \u003cli\u003eRight-hand thread direction on both ends matches standard UNC fastener orientation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard reducing coupling nut for use with 3\/8-16 and 1\/2-13 UNC threaded rods, studs, and bolts in general mechanical and trade fastening assemblies.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by hand-starting both threaded connections before applying final torque with an open-end or box wrench sized to 5\/8 inches across flats. Verify thread engagement depth on both ends before fully tightening. Do not use this coupling nut in high-vibration or structural load-bearing applications without confirming Grade 2 steel is appropriate for the load requirements. Follow applicable mechanical codes for the trade and application type.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3\/8-16 x 1\/2-13\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length (OAL)\u003c\/strong\u003e: 1-1\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth Across Flats\u003c\/strong\u003e: 5\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Grade 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Zinc-Plated\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: VALUE COLLECTION\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 250678\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51701099036978,"sku":"250678","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6907821c2a9c321a0c773ed8579312e5_83bad514-ebd1-48bb-86b5-0736fabb59ba.jpg?v=1788398195","url":"https:\/\/voomisupply.com\/products\/value-collection-250678-reducing-coupling-nut-3-8-16-x-1-2-13","provider":"Voomi Supply","version":"1.0","type":"link"}