{"product_id":"value-collection-mpa996267-left-hand-hex-jam-nut-3-8-24-unf","title":"Value Collection MPA996267 Left Hand Hex Jam Nut 3\/8-24 Unf","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION MPA996267 is a 3\/8-24 UNF left hand hex jam nut designed for fastening applications that require reverse-thread engagement. Machined from steel with a zinc clear finish, this low-profile nut measures 9\/16 inches across flats and 0.2188 inches in height. Its left hand thread direction makes it the correct choice for rotating assemblies, counterclockwise-loaded joints, and setups where a standard right hand nut would loosen under normal operational forces. Licensed tradespeople in HVAC, plumbing, electrical, and mechanical service will encounter this fastener wherever anti-loosening or paired left-right thread configurations are required.\u003c\/p\u003e\n\u003cp\u003eThis jam nut is suited for light-duty fastening tasks in residential and commercial trade applications. Its compact profile allows it to act as a locking nut when tightened against a primary nut, effectively jamming the two together to resist vibration-induced loosening. The 3\/8-24 UNF thread is a fine-pitch unified national fine specification, common in precision mechanical assemblies, equipment frames, and control linkages where fine thread engagement and holding strength matter.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eLeft hand thread direction for reverse-threaded and anti-loosening applications\u003c\/li\u003e\n  \u003cli\u003e3\/8-24 UNF fine-pitch thread for precise engagement and strong hold\u003c\/li\u003e\n  \u003cli\u003e9\/16 inch across-flats hex profile fits standard open-end and combination wrenches\u003c\/li\u003e\n  \u003cli\u003eLow-profile jam nut design at 0.2188 inches high for tight clearance installations\u003c\/li\u003e\n  \u003cli\u003eSteel construction with zinc clear finish for corrosion resistance in light-duty environments\u003c\/li\u003e\n  \u003cli\u003eSold in a package of 10, suitable for single-job or small-stock use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with any 3\/8-24 UNF left hand threaded rod, bolt, or stud in mechanical assemblies requiring a reverse-thread jam nut.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by hand-threading the nut onto a left hand threaded fastener in the counterclockwise direction before tightening with an open-end or combination wrench sized for 9\/16 inches across flats. When used as a jam nut, run a second nut against this one and tighten both in opposing directions to lock the assembly. Always confirm thread direction before installation to avoid cross-threading. Follow applicable mechanical codes and equipment manufacturer guidelines when selecting fasteners for structural or safety-critical joints.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3\/8-24 UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Left Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAcross Flats\u003c\/strong\u003e: 9\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 0.2188 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Zinc Clear\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 10\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: MPA996267\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51720968732978,"sku":"MPA996267","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/bd9d0beb2a85c10838a4a9042debafe8.jpg?v=1788571623","url":"https:\/\/voomisupply.com\/products\/value-collection-mpa996267-left-hand-hex-jam-nut-3-8-24-unf","provider":"Voomi Supply","version":"1.0","type":"link"}