{"product_id":"spi-34-250-1-plug-thread-gage-1-4-20-6h-single-end-go","title":"Spi 34-250-1 Plug Thread Gage 1\/4-20 6H Single End Go","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SPI 34-250-1 is a single-end Go plug thread gage designed to verify the minimum material condition of internal 1\/4-20 threads to 6H tolerance class. Manufactured from steel, this gage confirms that a threaded hole will accept a mating fastener within specified limits. It is used in inspection, quality control, and production environments where thread conformance to ANSI standards is required. The Go member checks that the thread form, pitch, and diameter fall within the acceptable tolerance range. A size 1 handle is required for use but is not included with this gage.\u003c\/p\u003e\u003cp\u003eThis gage is suited for dimensional inspection of 1\/4-20 internally threaded components in manufacturing, maintenance, and assembly settings. Typical applications include verifying tapped holes in metal parts across general industrial, mechanical, and trade environments. The 6H classification makes it appropriate for standard-fit metric-equivalent unified thread inspection. Machinists, quality technicians, and tool and die professionals commonly use this type of gage on the shop floor or in a gage room setting.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eGo-member single-end design checks minimum material condition of 1\/4-20 internal threads\u003c\/li\u003e\n\u003cli\u003e6H tolerance class conforms to ANSI thread gage standards\u003c\/li\u003e\n\u003cli\u003eSteel construction for durability in production inspection use\u003c\/li\u003e\n\u003cli\u003eNIST traceability certification included for calibration documentation\u003c\/li\u003e\n\u003cli\u003eMeets ANSI and NIST standards for thread gage conformance\u003c\/li\u003e\n\u003cli\u003eAccepts a size 1 handle (sold separately)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with 1\/4-20 internally threaded components requiring 6H class Go inspection. Requires a size 1 thread gage handle, which is not included.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThread plug gages are installed and operated by hand — no power source or lockout procedure is required. Ensure the threaded bore is clean and free of chips or coolant before gauging to avoid false readings or gage damage. Handle should be securely attached before use per the handle manufacturer's instructions. Gage should be stored and handled per ANSI gage care guidelines to maintain calibration integrity.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-20\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance Class\u003c\/strong\u003e: 6H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGo\/No Go\u003c\/strong\u003e: Go\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Configuration\u003c\/strong\u003e: Single End\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandle Size\u003c\/strong\u003e: 1 (not included)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTraceability Certification\u003c\/strong\u003e: NIST\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, NIST\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 41111619\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SPI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 34-250-1\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51700552433970,"sku":"34-250-1","price":77.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/285d0d258514292c98d335aad48495f0.jpg?v=1788391860","url":"https:\/\/voomisupply.com\/products\/spi-34-250-1-plug-thread-gage-1-4-20-6h-single-end-go","provider":"Voomi Supply","version":"1.0","type":"link"}