{"product_id":"spi-34-372-3-plug-thread-gage-12-24-3b-class-go-no-go","title":"Spi 34-372-3 Plug Thread Gage 12-24 3B Class Go No Go","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 34-372-3 is a double-end plug thread gage designed to inspect 12-24 unified coarse internal threads to the 3B tolerance class. One end carries the Go member and the other carries the No Go member, allowing a technician to verify both the minimum and maximum thread tolerance boundaries in a single tool. The gage is manufactured from steel and ships with a handle included. A NIST-traceable certification is included with each unit, satisfying documentation requirements for quality-controlled manufacturing and inspection environments. This tool is used by machinists, quality control inspectors, and precision assembly technicians.\u003c\/p\u003e\n\u003cp\u003eThis gage is suited for production and inspection work wherever 12-24 threaded holes must be verified against ASME B1.2 Go\/No Go acceptance criteria. Typical applications include inspection of tapped holes in fabricated assemblies, machined components, and manufactured hardware where thread fit and engagement must meet 3B class tolerances. The double-end design keeps both members on one handle, reducing tool changeover time during high-volume inspection runs.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eDouble-end design with Go and No Go members on a single handle\u003c\/li\u003e\n  \u003cli\u003eInspects 12-24 unified coarse internal threads to 3B class tolerance\u003c\/li\u003e\n  \u003cli\u003eSteel construction for durability and dimensional stability\u003c\/li\u003e\n  \u003cli\u003eHandle included — ready to use out of the package\u003c\/li\u003e\n  \u003cli\u003eNIST-traceable calibration certificate included for quality documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for inspection of 12-24 unified coarse internal threaded features held to ASME 3B class tolerances.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThread gages are used by machinists and quality inspectors — no power shutdown is required for use. Insert the Go member into the threaded hole with light hand pressure only; never force a thread gage, as doing so can damage gage members and produce false readings. The No Go member should not enter the threaded hole; if it does, the hole is out of tolerance. Store the gage in its case and keep it clean and lightly oiled to maintain calibration integrity.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 12-24\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Class\u003c\/strong\u003e: 3B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGage Type\u003c\/strong\u003e: Go \/ No Go\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Configuration\u003c\/strong\u003e: Double End\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHandle Included\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTraceability Certification\u003c\/strong\u003e: 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\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: 34-372-3\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51720509063474,"sku":"34-372-3","price":184.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ceb9a85a1a840e78f4402fbb22a2866b.jpg?v=1788565243","url":"https:\/\/voomisupply.com\/products\/spi-34-372-3-plug-thread-gage-12-24-3b-class-go-no-go","provider":"Voomi Supply","version":"1.0","type":"link"}