{"product_id":"osg-1400117901-thread-forming-tap-10-24-unc-bottoming","title":"Osg 1400117901 Thread Forming Tap 10-24 Unc Bottoming","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1400117901 is a thread forming tap in the HY-PRO NRT series, designed for cold-form tapping of internal threads without cutting chips. Built from cobalt high-speed steel with a steam oxide finish, this bottoming chamfer tap produces 10-24 UNC threads in a right-hand direction to a Class 3B fit at an H4 thread limit. The bottoming chamfer — 1 to 1.5 chamfered threads — allows threading close to the bottom of a blind hole. Overall length is 2.375 inches with a shank diameter of 0.194 inches and a tapping depth of 0.866 inches. Licensed machinists and toolroom technicians use this tap for precision blind-hole applications in production and maintenance environments.\u003c\/p\u003e\u003cp\u003eThis tap is suited for blind-hole threading in a range of metallic materials including alloy steel, carbon steel, die steel, hardened steel, stainless steel, and aluminum. The cold-forming action work-hardens the thread form, producing stronger internal threads compared to cut-tap methods. It is appropriate for CNC machining centers, drill presses, and manual tapping applications where a bottoming chamfer is required to reach full thread engagement near the bottom of a closed bore.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBottoming chamfer with 1 to 1.5 chamfered threads for threading close to blind-hole bottoms\u003c\/li\u003e\n\u003cli\u003eCobalt high-speed steel construction for improved heat and wear resistance in tough materials\u003c\/li\u003e\n\u003cli\u003eSteam oxide coating reduces friction and improves lubricant retention during tapping\u003c\/li\u003e\n\u003cli\u003eH4 thread limit to Class 3B fit for consistent, tight-tolerance thread production\u003c\/li\u003e\n\u003cli\u003eNo coolant-through design — suitable for standard lubricated hand and machine tapping\u003c\/li\u003e\n\u003cli\u003eRight-hand thread direction, 24 threads per inch, 10-24 UNC standard\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for blind-hole thread forming in alloy steel, carbon steel, die steel, hardened steel, stainless steel, and aluminum workpieces requiring 10-24 UNC internal threads to a Class 3B fit.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThread forming taps require a properly sized forming tap drill — do not use a standard cut-tap drill size, as the displaced material increases minor diameter. Apply a quality tapping fluid or cutting oil appropriate for the workpiece material before tapping. Secure the workpiece fully before engaging the tap, and ensure the tap is properly aligned to the bore axis to avoid tap breakage or off-axis threads. Follow OSHA and shop safety procedures when operating drill presses or CNC equipment.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 10-24\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 24\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer Type\u003c\/strong\u003e: Bottoming\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfered Threads\u003c\/strong\u003e: 1 to 1.5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass of Fit\u003c\/strong\u003e: 3B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Cobalt High-Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Steam Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.375 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.492 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTapping Depth\u003c\/strong\u003e: 0.866 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.194 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.152 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.250 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Blind Hole Threading\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Alloy Steel, Aluminum, Carbon Steel, Die Steel, Hardened Steel, Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: HY-PRO NRT (14001)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.015 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: OSG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1400117901\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51737168478514,"sku":"1400117901","price":30.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0c9907f5587c8e07c59eed68660caba7.jpg?v=1788785174","url":"https:\/\/voomisupply.com\/products\/osg-1400117901-thread-forming-tap-10-24-unc-bottoming","provider":"Voomi Supply","version":"1.0","type":"link"}