{"product_id":"spi-34-379-8-double-end-plug-thread-gage-1-4-32-2b","title":"Spi 34-379-8 Double End Plug Thread Gage 1\/4-32 2B","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SPI 34-379-8 is a double-end plug thread gage designed to inspect 1\/4-32 threads to the 2B tolerance class. One end carries the Go member and the opposite end carries the No Go member, allowing a technician to confirm both minimum and maximum thread acceptance in a single tool. The gage is machined from steel for dimensional stability and comes with a Size 1 handle included. A NIST-traceable traceability certification ships with the unit, satisfying quality-system documentation requirements without additional calibration steps at incoming inspection.\u003c\/p\u003e\u003cp\u003eThis gage is used in precision machining, metrology labs, and quality-control environments where 1\/4-32 threaded components must be verified before assembly or shipment. The 2B classification covers the standard commercial tolerance for inch-series internal threads, making this tool appropriate for production inspection of fittings, fasteners, and instrument ports machined to that specification. Inspection technicians and quality engineers are the primary users.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eDouble-end design: Go member on one end, No Go member on the other for complete thread acceptance testing in one tool\u003c\/li\u003e\n\u003cli\u003eThread specification: 1\/4-32 inch-series internal thread\u003c\/li\u003e\n\u003cli\u003eTolerance class: 2B, standard commercial fit for internal threads\u003c\/li\u003e\n\u003cli\u003eSteel construction for dimensional stability under repeated use\u003c\/li\u003e\n\u003cli\u003eSize 1 handle included — no separate handle purchase required\u003c\/li\u003e\n\u003cli\u003eNIST-traceable certification included, supporting ISO and quality-system audit requirements\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for inspection of 1\/4-32 Class 2B internal threads in machined components, fittings, and fastener applications where inch-series thread gaging is required.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003ePlug thread gages are inspection tools and do not require installation in a mechanical system. Handle the gage with clean, dry hands or lint-free gloves to prevent corrosion on the precision-ground surfaces. Store in the provided case or a protected location when not in use to maintain calibration integrity. Periodic re-calibration against NIST standards should follow your facility's gage control plan.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-32\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance Class\u003c\/strong\u003e: 2B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGage Type\u003c\/strong\u003e: Go \/ No Go Double End Plug\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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandle Included\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTraceability Standard\u003c\/strong\u003e: NIST\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound\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: 34-379-8\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51714096300338,"sku":"34-379-8","price":286.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/72b59d7a87bf0007af937d16bc508a1f.jpg?v=1788496158","url":"https:\/\/voomisupply.com\/products\/spi-34-379-8-double-end-plug-thread-gage-1-4-32-2b","provider":"Voomi Supply","version":"1.0","type":"link"}