{"product_id":"value-collection-sc84904721-er16-collet-locknut","title":"Value Collection SC84904721 ER16 Collet Locknut","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION SC84904721 is an ER16 collet locknut designed to secure ER16 series collets in CNC machining centers, milling machines, and similar rotating spindle applications. The locknut threads onto the collet chuck nose and applies the clamping force needed to hold the collet and cutting tool at the correct depth. It measures 1.18 inches in diameter and 0.71 inches in height and weighs approximately 0.11 pounds, making it a compact, lightweight component suited for high-speed spindle work. This part does not support coolant-through configurations.\u003c\/p\u003e\n\u003cp\u003eER16 locknuts are used wherever ER16-series collet chucks are installed, including CNC lathes, milling machines, drill presses, and router spindles found in machine shops and production environments. The ER16 collet system is one of the most widely used toolholding standards in the industry, and this locknut is a direct-fit component for any chuck body accepting the ER16 nut thread specification. Machinists, toolroom technicians, and CNC setup operators typically handle installation and replacement of this component.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFits ER16 collet series for broad compatibility across ER16-standard chuck bodies\u003c\/li\u003e\n  \u003cli\u003eCompact profile at 1.18 inches wide and 0.71 inches tall\u003c\/li\u003e\n  \u003cli\u003eLightweight at approximately 0.11 pounds for minimal spindle load impact\u003c\/li\u003e\n  \u003cli\u003eNo coolant-through design — suitable for dry and flood coolant external applications\u003c\/li\u003e\n  \u003cli\u003eSold individually, quantity of one per package\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a direct replacement locknut for ER16-series collet chuck systems. Compatible with any collet chuck body machined to the ER16 locknut thread standard.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and replacement should be performed by a qualified machinist or CNC toolroom technician. Power down and lock out the spindle drive before removing or installing any toolholding components. Use the appropriate ER16 spanner wrench to torque the locknut evenly against the collet — never use improvised tools that could damage the nut face or collet taper. Inspect the collet seating surface and chuck bore for debris or damage before assembly.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: Locknut\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCollet Series\u003c\/strong\u003e: ER16\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 1.18 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 0.71 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.11 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23291900\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: VALUE COLLECTION\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: SC84904721\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51690389700914,"sku":"SC84904721","price":31.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ac39ab5ffb6302ac4dda37ba3ab64ddc.jpg?v=1788269840","url":"https:\/\/voomisupply.com\/products\/value-collection-sc84904721-er16-collet-locknut","provider":"Voomi Supply","version":"1.0","type":"link"}