{"product_id":"osg-1136400-straight-flute-plug-tap-1-12-unf-hss","title":"Osg 1136400 Straight Flute Plug Tap 1-12 Unf Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 1136400 is a straight flute plug tap designed for cutting right-hand internal threads to the 1-12 UNF standard. Built from high-speed steel with a bright, uncoated finish, it features 4 flutes and an H4 thread limit, delivering consistent thread geometry in a 3B class of fit. The plug chamfer  -  typically 3 to 5 threads  -  makes it suitable for through-hole and moderately deep blind-hole applications. Overall length is 5-1\/8 inches with a thread length of 2-1\/2 inches. This tap is intended for use by machinists and tool-and-die professionals working in production or maintenance environments.\u003c\/p\u003e\n\u003cp\u003eThe 1136400 is rated for tapping into a range of common engineering materials, including aluminum, cast aluminum, cast iron, low-carbon steel, medium-carbon steel, and high-carbon steel. Its straight flute design works best in shorter chipping materials where chip evacuation is not a limiting factor. Typical applications include threading bolt holes, threaded inserts, and fastener bores in structural and mechanical assemblies requiring a 1-12 UNF thread form.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1-12 UNF thread standard with 3B class of fit for precise thread tolerance control\u003c\/li\u003e\n  \u003cli\u003eH4 thread limit ensures consistent oversize compensation for coated or plated fasteners\u003c\/li\u003e\n  \u003cli\u003ePlug chamfer style accommodates through holes and moderate-depth blind holes\u003c\/li\u003e\n  \u003cli\u003e4-flute straight design optimized for short-chip materials such as cast iron and carbon steels\u003c\/li\u003e\n  \u003cli\u003eHigh-speed steel construction provides durability across a broad range of common workpiece materials\u003c\/li\u003e\n  \u003cli\u003eBright uncoated finish allows direct visual inspection of cutting edge condition\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style straight flute tap for 1-12 UNF threaded applications; part of OSG Series 101. Compatible material applications include aluminum, cast aluminum, cast iron, high-carbon steel, low-carbon steel, and medium-carbon steel.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by qualified machinists using a properly aligned tapping head, tapping arm, or CNC machine to prevent tap breakage from misalignment. Power down and de-energize all machine tooling before changing or inspecting taps. Use an appropriate cutting fluid or tapping compound for the workpiece material to extend tool life and improve thread finish. Do not force a tap that shows resistance  -  back off to clear chips before continuing.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1-12 UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 12\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\u003eChamfer Type\u003c\/strong\u003e: Plug\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 2-1\/2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 5-1\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.8125 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.6 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNeck Length\u003c\/strong\u003e: 2.7247 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High-Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOversize\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 101\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.637 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: 1136400\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51740429517106,"sku":"1136400","price":170.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/326d7ab8b02d8071a42bd324ef4f1ff7_62a6b7da-74db-42e6-8a55-d27eef531942.jpg?v=1788824958","url":"https:\/\/voomisupply.com\/products\/osg-1136400-straight-flute-plug-tap-1-12-unf-hss","provider":"Voomi Supply","version":"1.0","type":"link"}