{"product_id":"osg-1650509108-spiral-flute-tap-5-40-unc-bottoming","title":"Osg 1650509108 Spiral Flute Tap 5-40 Unc Bottoming","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 1650509108 is a spiral flute tap designed for cutting 5-40 UNC internal threads in a wide range of ferrous and non-ferrous materials. It features a bottoming chamfer, making it suited for threading to the bottom of blind holes where full thread engagement near the floor is required. The tap is manufactured from powdered metal and carries a V coating for improved wear resistance and reduced friction during the tapping operation. With a 45-degree helix angle and 2 right-hand flutes, it efficiently evacuates chips upward out of the hole. Overall length is 2.25 inches with a thread length of 0.2 inches and a tapping depth of 18 millimeters.\u003c\/p\u003e\n\u003cp\u003eThis tap is used in machine shop, maintenance, and production environments where 5-40 UNC threads are required. The bottoming configuration is particularly relevant when threading into blind holes in alloy steel, low-carbon steel, medium-carbon steel, high-carbon steel, hardened steel, cast iron, aluminum, cast aluminum, and stainless steel workpieces. It is installed using a standard tap holder or tapping head and is suited for both manual and CNC tapping operations. The H2 thread limit provides a controlled tolerance for 2B class of fit applications.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eBottoming chamfer for threading to the base of blind holes\u003c\/li\u003e\n  \u003cli\u003e45-degree helix angle for efficient upward chip evacuation\u003c\/li\u003e\n  \u003cli\u003ePowdered metal construction for consistent hardness and wear resistance\u003c\/li\u003e\n  \u003cli\u003eV coating reduces friction and extends tool life across a broad material range\u003c\/li\u003e\n  \u003cli\u003eH2 thread limit maintains 2B class of fit tolerance\u003c\/li\u003e\n  \u003cli\u003eRight-hand flute direction compatible with standard right-hand tapping setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for cutting 5-40 UNC 2B class of fit threads. Compatible material applications include alloy steel, aluminum, cast aluminum, cast iron, hardened steel, high-carbon steel, low-carbon steel, medium-carbon steel, and stainless steel. Part of OSG Series 16505.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists or tool and die technicians using a tap wrench, tapping head, or CNC tapping cycle with a synchronized spindle. Always ensure the tap is properly aligned with the pre-drilled hole to avoid tap breakage, especially with small-diameter taps in this size range. Power down or disengage the machine spindle before loading or removing the tap. Cutting fluid or tapping compound appropriate for the workpiece material should be applied to reduce heat and extend tap life.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5-40\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClass of Fit\u003c\/strong\u003e: 2B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer\u003c\/strong\u003e: Bottoming\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Style\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 45 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 40\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.2 inches (5.10 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTapping Depth\u003c\/strong\u003e: 18 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.25 inches (56 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.141 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNeck Length\u003c\/strong\u003e: 0.78 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.1875 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.11 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Powdered Metal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: V Coated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 16505\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 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: OSG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1650509108\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51729354326322,"sku":"1650509108","price":57.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/3960283163efc922807ec09ac636790c_29ae97f5-13ad-42b3-a928-4d556c27ddd2.jpg?v=1788703437","url":"https:\/\/voomisupply.com\/products\/osg-1650509108-spiral-flute-tap-5-40-unc-bottoming","provider":"Voomi Supply","version":"1.0","type":"link"}