{"product_id":"osg-1400114400-thread-forming-tap-8-32-unc-modified-bottoming","title":"Osg 1400114400 Thread Forming Tap 8-32 Unc Modified Bottoming","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1400114400 is a thread forming tap in the HY-PRO NRT series, designed for cold-forming internal threads in ductile materials without cutting or producing chips. Built from cobalt high-speed steel with a bright finish, this tap carries an 8-32 UNC thread profile and a modified bottoming chamfer of 2 to 2.5 threads, allowing it to form threads close to the bottom of blind holes. The H4 thread limit ensures consistent tolerance control across production runs. Overall length is 2.125 inches with a shank diameter of 0.168 inches. Machinists and tool-and-die professionals specify this tap where chip-free threading is critical to bore cleanliness and thread strength.\u003c\/p\u003e\u003cp\u003eThis tap is suited for blind hole threading operations in both manual and CNC tapping applications. The cobalt construction improves heat and wear resistance, making it a practical choice for harder or abrasive workpiece materials. Typical installation scenarios include production threading on machined components where thread roll-forming is preferred over cut-tapping for superior thread surface finish and minor diameter integrity.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eThread forming design eliminates chips, reducing clogging risk in blind holes\u003c\/li\u003e\n\u003cli\u003eCobalt high-speed steel construction for improved heat and wear resistance\u003c\/li\u003e\n\u003cli\u003eModified bottoming chamfer (2 to 2.5 threads) for threading close to blind hole bottoms\u003c\/li\u003e\n\u003cli\u003eH4 thread limit for consistent tolerance control\u003c\/li\u003e\n\u003cli\u003eRight-hand thread direction, 8-32 UNC profile\u003c\/li\u003e\n\u003cli\u003eBright finish; no coolant-through required\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eRated for use in alloy steel, aluminum, carbon steel, die steel, hardened steel, and stainless steel workpieces per material application codes P and N. Designed as a standard 8-32 UNC thread forming tap for blind hole applications in compatible ductile materials.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThread forming taps require a correctly sized forming tap drill — use the recommended tap drill size for 8-32 UNC roll-form operations, which differs from standard cut-tap drill sizing. Secure the workpiece and ensure the tap is properly aligned before engaging to prevent thread distortion or tap breakage. Apply appropriate tapping fluid for the workpiece material; even though coolant-through is not available on this tap, external lubrication is strongly recommended. Follow applicable shop safety procedures and manufacturer tapping speed guidelines for cobalt tooling.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 8-32 UNC\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: 32\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer\u003c\/strong\u003e: Modified Bottoming\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfered Threads\u003c\/strong\u003e: 2 to 2.5 threads\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: Bright\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Blind Hole Threading\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.374 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTapping Depth\u003c\/strong\u003e: 0.752 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.168 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.131 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\u003eWeight\u003c\/strong\u003e: 0.015 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: HY-PRO NRT (14001)\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\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: 1400114400\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51749264523570,"sku":"1400114400","price":30.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/036f9c0bca8e0dd1559b04d050dc4f70.jpg?v=1788903767","url":"https:\/\/voomisupply.com\/products\/osg-1400114400-thread-forming-tap-8-32-unc-modified-bottoming","provider":"Voomi Supply","version":"1.0","type":"link"}