{"product_id":"e-z-lok-329-524-thread-locking-insert-5-16-24-unf","title":"E-z Lok 329-524 Thread Locking Insert 5\/16-24 Unf","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe E-Z LOK 329-524 is a self-locking threaded insert designed to create a strong, vibration-resistant internal thread in metal assemblies. It features a 5\/16-24 UNF internal thread and a 1\/2-13 external thread, allowing it to be installed into a tapped hole and provide a reliable locking engagement for mating fasteners. Manufactured from C12L14 carbon steel with a smooth, rolled finish, the 329-524 measures 31\/64 inches (0.484 inches) overall length. It is installed by machinists, maintenance technicians, and assembly professionals where thread locking without adhesives is required.\u003c\/p\u003e\n\u003cp\u003eThe 329-524 is suited for metal fabrication, mechanical assemblies, and maintenance repair operations where a self-locking thread form is needed without chemical thread-locking compounds. The self-lock wall design creates interference along the insert wall to resist rotation and back-out under vibration and dynamic loading. This insert fits a standard tapped hole and is appropriate for use in carbon steel and similarly hard substrate materials. Internal thread class of fit is 2B and external thread class of fit is 2A, consistent with standard UNF fastener tolerances.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e5\/16-24 UNF internal thread with Class 2B fit for standard fastener engagement\u003c\/li\u003e\n  \u003cli\u003e1\/2-13 external thread with Class 2A fit for installation into a standard tapped hole\u003c\/li\u003e\n  \u003cli\u003eSelf-lock wall design resists rotation and back-out under vibration without adhesives\u003c\/li\u003e\n  \u003cli\u003eC12L14 carbon steel construction for strength and machinability\u003c\/li\u003e\n  \u003cli\u003e31\/64 inches (0.484 inches) overall length for compact installation envelopes\u003c\/li\u003e\n  \u003cli\u003eSmooth, rolled finish on external thread for consistent installation torque\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for installation into a standard tapped hole sized for a 1\/2-13 external thread. Compatible with standard UNF fastener systems requiring a 5\/16-24 internal thread. Use with a standard tap type for host material preparation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by machinists or assembly technicians using a standard tap to prepare the host material before driving the insert. Ensure the host material is fully de-energized or depressurized and secured before beginning thread preparation. Use the correct installation driver or tool recommended for self-lock wall inserts to avoid cross-threading or damage to the locking feature. Do not exceed the insert's designed thread engagement depth during installation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInternal Thread Size\u003c\/strong\u003e: 5\/16-24\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExternal Thread Size\u003c\/strong\u003e: 1\/2-13\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 31\/64 inches (0.484 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Type\u003c\/strong\u003e: Self-Lock Wall\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInternal Thread Class of Fit\u003c\/strong\u003e: 2B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExternal Thread Class of Fit\u003c\/strong\u003e: 2A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Carbon Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C12L14\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Smooth, Rolled\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFor Tap Type\u003c\/strong\u003e: Standard\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.011 pounds\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: E-Z LOK\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 329-524\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"E-Z LOK","offers":[{"title":"Default Title","offer_id":67911520223538,"sku":"329-524","price":28.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/db04812fb3a5641b569eabf99d516cad_9d89cd2a-8ea2-49ec-9cdc-56c139cf64a8.jpg?v=1791211515","url":"https:\/\/voomisupply.com\/products\/e-z-lok-329-524-thread-locking-insert-5-16-24-unf","provider":"Voomi Supply","version":"1.0","type":"link"}