{"product_id":"widia-2826038-insert-screw-t9-torx-4-40-thread","title":"Widia 2826038 Insert Screw T9 Torx 4-40 Thread","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe WIDIA 2826038 is a T9 Torx insert screw designed to secure indexable inserts in boring bar toolholders. Manufactured from steel, this screw uses a 4-40 inch thread and is compatible with the Q KEY driver tool. With an overall length of approximately 0.21 inches (5.34 mm), it is a small but critical fastener that maintains proper insert seating and positioning during metal cutting operations. Licensed HVAC and machining professionals alike know that a failed or stripped clamping screw means downtime  -  this replacement keeps Q-Series boring bars running without interruption.\u003c\/p\u003e\n\u003cp\u003eThis insert screw is intended for use in Q-Series multiple circle boring bars used in indexable boring applications. It corresponds to industry standard number QC21 (manufacturers catalog number QC-21) and is suited for shops running boring operations on manual lathes, CNC turning centers, and similar equipment. The Torx drive head resists cam-out during torque application, making it well-suited for repeated insert changes in a production environment.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eT9 Torx drive head resists cam-out during insert changes\u003c\/li\u003e\n  \u003cli\u003e4-40 inch thread size matches Q-Series boring bar insert pockets\u003c\/li\u003e\n  \u003cli\u003eSteel construction for durability under repeated clamping cycles\u003c\/li\u003e\n  \u003cli\u003eCompatible with Q KEY driver for precise torque application\u003c\/li\u003e\n  \u003cli\u003eCorresponds to industry standard number QC21\u003c\/li\u003e\n  \u003cli\u003eSold individually  -  order exact quantity needed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with WIDIA Q-Series multiple circle boring bars and compatible boring bar toolholders as indicated by industry standard number QC21. Toolholder style compatibility listed as Multiple Circle Boring Bars. Use with the Q KEY driver.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInsert screw installation and replacement is performed by a machinist or toolroom technician. Before changing the insert or screw, ensure the machine is fully powered down and the spindle is locked per shop safety protocols. Use the specified Q KEY Torx driver to avoid stripping the screw head  -  do not substitute a standard hex or Phillips driver. Follow the toolholder manufacturer torque guidelines for insert clamping to prevent insert movement during cutting.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eScrew Type\u003c\/strong\u003e: Insert Screw\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Type\u003c\/strong\u003e: Torx\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Type\u003c\/strong\u003e: Torx\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTorx Size\u003c\/strong\u003e: T9\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 4-40 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 0.21 inches (5.34 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: Q-Series\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKey\/Driver Compatibility\u003c\/strong\u003e: Q KEY\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustry Standard Number\u003c\/strong\u003e: QC21\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturers Catalog Number\u003c\/strong\u003e: QC-21\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31161500\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.05 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: WIDIA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 2826038\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WIDIA","offers":[{"title":"Default Title","offer_id":67910556090674,"sku":"2826038","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/db17b446130a37a11b8e1bc64207f0b9.jpg?v=1791198756","url":"https:\/\/voomisupply.com\/products\/widia-2826038-insert-screw-t9-torx-4-40-thread","provider":"Voomi Supply","version":"1.0","type":"link"}