{"product_id":"seco-00018930-differential-screw-5-16-24-thread-indexable","title":"Seco 00018930 Differential Screw 5\/16-24 Thread Indexable","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SECO 00018930 is a differential screw designed for indexable turning toolholders. It uses a 5\/16-24 thread and features opposing right-hand and left-hand thread sections that work together to draw and lock cutting inserts securely in place during turning operations. The overall length is 1.25 inches, with each threaded section measuring 0.50 inches. This type of fastener is a consumable component in precision turning setups and is typically replaced by CNC machinists and toolroom technicians during insert changes or when thread wear affects clamping force.\u003c\/p\u003e\n\u003cp\u003eThis differential screw is intended for use in indexable turning applications where precise insert clamping is critical to surface finish and dimensional accuracy. It is compatible with MTFN-style toolholders and works with clamp hardware designated CL-12. Typical installation environments include CNC turning centers and manual lathes running TNMG 543 inserts. This screw is sold individually per package, with a minimum order quantity of 10 units, making it suitable for stocking in toolcrib or maintenance inventory.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e5\/16-24 thread size for use with MTFN-style indexable turning toolholders\u003c\/li\u003e\n  \u003cli\u003eDual opposing thread design: 0.50-inch right-hand thread and 0.50-inch left-hand thread for differential clamping action\u003c\/li\u003e\n  \u003cli\u003eOverall length of 1.25 inches for compact fitment in standard turning toolholder pockets\u003c\/li\u003e\n  \u003cli\u003eCompatible with CL-12 clamp hardware and TNMG 543 inserts\u003c\/li\u003e\n  \u003cli\u003eSold per unit with a minimum order quantity of 10, suitable for toolcrib stocking\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eCompatible with MTFN-style indexable turning toolholders, CL-12 clamp hardware, and TNMG 543 cutting inserts. Industry standard number 18930.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists or toolroom technicians during routine insert indexing or replacement. Always ensure the toolholder pocket and clamp seating surfaces are clean and free of chips before installing a new differential screw. Use the correct torque driver or hex key specified by the toolholder manufacturer to avoid stripping the thread. Do not substitute standard single-thread screws in differential-screw toolholder designs, as this will result in improper clamping force.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eScrew Type\u003c\/strong\u003e: Differential Screw\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/16-24\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRight-Hand Thread Length\u003c\/strong\u003e: 0.50 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLeft-Hand Thread Length\u003c\/strong\u003e: 0.50 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eToolholder Style Compatibility\u003c\/strong\u003e: MTFN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClamp Compatibility\u003c\/strong\u003e: CL-12\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Compatibility\u003c\/strong\u003e: TNMG 543\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndexable Tool Type\u003c\/strong\u003e: Turning\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustry Standard Number\u003c\/strong\u003e: 18930\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\u003eMinimum Order 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: SECO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 00018930\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SECO TOOLS","offers":[{"title":"Default Title","offer_id":51557991448882,"sku":"00018930","price":101.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/60fb806ef005cab6f3b41b2223bd139b.jpg?v=1786400290","url":"https:\/\/voomisupply.com\/products\/seco-00018930-differential-screw-5-16-24-thread-indexable","provider":"Voomi Supply","version":"1.0","type":"link"}