{"product_id":"e-z-lok-335-5-thread-locking-insert-5-16-18-unc","title":"E-z Lok 335-5 Thread Locking Insert 5\/16-18 Unc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe E-Z LOK 335-5 is a self-locking threaded insert designed to create a secure, vibration-resistant internal thread in metal assemblies. It features a 5\/16-18 internal thread and a 9\/16-12 external thread, both to UNC standards, with an overall length of 0.515 inches (33\/64 inches). Manufactured from C12L14 carbon steel with a smooth rolled finish, this insert is installed into a pre-tapped hole and relies on its self-lock wall design to resist loosening under load or vibration. It is a standard choice for maintenance, repair, and original equipment manufacturing applications where thread integrity is critical.\u003c\/p\u003e\n\u003cp\u003eThis insert is suited for use in ferrous and non-ferrous metal components where a reliable UNC internal thread must be established or restored. The self-lock wall design makes it appropriate for assemblies subject to dynamic loads, torque cycling, or vibration. It is installed using a standard tap corresponding to the 9\/16-12 external thread, making it compatible with conventional shop tooling. Typical users include machine shops, maintenance technicians, and field service professionals working on industrial, mechanical, and structural assemblies.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e5\/16-18 internal thread and 9\/16-12 external thread, both UNC standard\u003c\/li\u003e\n  \u003cli\u003eSelf-lock wall design resists loosening under vibration and dynamic loading\u003c\/li\u003e\n  \u003cli\u003eC12L14 carbon steel construction with smooth rolled finish\u003c\/li\u003e\n  \u003cli\u003eTensile strength rated at 10,215 pounds\u003c\/li\u003e\n  \u003cli\u003eOverall length of 0.515 inches (33\/64 inches) for compact fitment\u003c\/li\u003e\n  \u003cli\u003eInstalls with a standard tap  -  no special driver required for the external thread preparation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or repair insert for metal assemblies requiring a 5\/16-18 UNC internal thread established via a 9\/16-12 UNC tapped hole using a standard tap.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist or mechanical technician. Before installation, ensure the host material is tapped to the correct 9\/16-12 UNC specification using a standard tap as specified by the manufacturer. Secure the workpiece and de-energize or lock out any associated equipment before performing thread repair or insert installation. Do not exceed the rated tensile load during assembly or service.\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\/16-18\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExternal Thread Size\u003c\/strong\u003e: 9\/16-12\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\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\u003eOverall Length\u003c\/strong\u003e: 0.515 inches (33\/64 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTensile Strength\u003c\/strong\u003e: 10,215 pounds\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\u003eInsert Type\u003c\/strong\u003e: Self-Lock Wall\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: 0.018 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: 335-5\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"E-Z LOK","offers":[{"title":"Default Title","offer_id":67913776103730,"sku":"335-5","price":33.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c03a0ecee7312ab7d2065595865e1076.jpg?v=1791246555","url":"https:\/\/voomisupply.com\/products\/e-z-lok-335-5-thread-locking-insert-5-16-18-unc","provider":"Voomi Supply","version":"1.0","type":"link"}