{"product_id":"vargus-58821-laydown-threading-insert-8-tpi-buttress","title":"Vargus 58821 Laydown Threading Insert 8 Tpi Buttress","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VARGUS 58821 is a solid carbide laydown threading insert designed for right-hand internal American Buttress thread forms at 8 threads per inch (TPI). Finished with a PVD-applied TiN coating, this insert delivers consistent thread geometry and extended tool life across a broad range of workpiece materials. The 12.70 mm inscribed circle and 4.76 mm thickness conform to standard indexable insert dimensions, making it a straightforward fit for compatible toolholders. It is intended for use by machinists and CNC operators working on precision threading applications where buttress thread profiles are required.\u003c\/p\u003e\u003cp\u003eThis insert is suited for internal buttress threading operations on materials spanning ferrous and non-ferrous metals as well as exotic alloys, reflecting its universal workpiece material classification. The 45-degree included angle and single tooth per side design are consistent with American Buttress thread standards per ANSI B1.9.1973. Typical installations include production threading on CNC lathes and turning centers where repeatable thread form accuracy is required. Solid carbide construction makes this insert appropriate for both light and interrupted cuts in a shop or manufacturing environment.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRight-hand internal American Buttress thread profile at 8 TPI per ANSI B1.9.1973\u003c\/li\u003e\n\u003cli\u003eSolid carbide substrate with PVD TiN coating for wear resistance and extended insert life\u003c\/li\u003e\n\u003cli\u003e45-degree included angle with one cutting tooth per side for defined thread form\u003c\/li\u003e\n\u003cli\u003e12.70 mm (1\/2 inch) inscribed circle fits standard 4IR toolholder seats\u003c\/li\u003e\n\u003cli\u003eUniversal workpiece material compatibility across material codes H, K, M, N, P, and S\u003c\/li\u003e\n\u003cli\u003eManufactured under ISO 9001:2008 quality management standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement insert for 4IR-style internal threading toolholders accepting a 12.70 mm inscribed circle laydown insert in the standard series configuration.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or CNC tooling technician. Ensure the machine spindle is fully stopped and the turret is locked before indexing or replacing the insert. Use the appropriate torque wrench and insert screw as specified by the toolholder manufacturer when securing the insert. Verify thread form and pitch with a thread gauge after the first test pass before committing to full production runs.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: 4IR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Size Code\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: VKX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreads Per Inch\u003c\/strong\u003e: 8 TPI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Internal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: American Buttress\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 45 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 12.70 mm (1\/2 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 4.76 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: TiN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Teeth Per Side\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material Codes\u003c\/strong\u003e: H, K, M, N, P, S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI B1.9.1973, ISO 9001:2008\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23291804\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: VARGUS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 58821\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VARGUS","offers":[{"title":"Default Title","offer_id":67909317787954,"sku":"58821","price":441.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/efc59fc89b015afe971ed26d4e815b1b_465b7bf0-a1df-4ace-ae2a-87fb63ca9db5.jpg?v=1791186253","url":"https:\/\/voomisupply.com\/products\/vargus-58821-laydown-threading-insert-8-tpi-buttress","provider":"Voomi Supply","version":"1.0","type":"link"}