{"product_id":"spi-34-230-3-plug-thread-gage-6-40-2b-single-end-no-go","title":"Spi 34-230-3 Plug Thread Gage 6-40 2B Single End No Go","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 34-230-3 is a single-end No Go plug thread gage designed for inspecting 6-40 UNC internal threads to 2B tolerance class. Machined from steel, this gage is used to verify that a threaded hole does not exceed the maximum material condition limit — meaning the No Go member should not enter the part. It is a precision inspection tool intended for quality control environments, machine shops, and production floors where thread conformance to NIST-traceable standards is required. A size 0 handle is needed for operation but is sold separately.\u003c\/p\u003e\n\u003cp\u003eThis gage is suited for inspecting small-diameter internal threads in metal components across manufacturing and assembly operations. The 6-40 thread designation is common in instrument, electronics, and precision mechanical applications where fine thread engagement is critical. The 2B classification covers the standard tolerance range for inch-series internal threads used in general-purpose fastening. Machinists, quality technicians, and inspection personnel use this gage as part of a go\/no-go thread verification process on production or incoming parts.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eNo Go member checks maximum material condition limit for 6-40 internal threads\u003c\/li\u003e\n  \u003cli\u003e2B class tolerance — standard fit for general-purpose inch-series internal threads\u003c\/li\u003e\n  \u003cli\u003eSteel construction for durability in production inspection use\u003c\/li\u003e\n  \u003cli\u003eNIST-traceable calibration standard included for documentation and compliance\u003c\/li\u003e\n  \u003cli\u003eSingle-end design; accepts size 0 handle (handle not included)\u003c\/li\u003e\n  \u003cli\u003eUNSPSC Code 41111619 for procurement classification\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with size 0 plug thread gage handles; handle is not included and must be sourced separately. Applicable to inspection of 6-40 UNC 2B internal threaded features in precision components.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThread gages are inspection tools, not cutting tools — do not force the No Go member into the part. Handle must be attached securely before use; inspect the handle collet and gage shank for wear or damage before each use. Store gages in a protective case away from other tooling to prevent contact damage to the thread form. Calibration should be verified periodically against NIST-traceable masters per your facility quality plan.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 6-40\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClassification\u003c\/strong\u003e: 2B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGo\/No Go\u003c\/strong\u003e: No Go\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Type\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: 0\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHandle Included\u003c\/strong\u003e: No\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\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: 34-230-3\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51702656532786,"sku":"34-230-3","price":87.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/30045bab3f18b899ee0f4105ed398d43.jpg?v=1788412578","url":"https:\/\/voomisupply.com\/products\/spi-34-230-3-plug-thread-gage-6-40-2b-single-end-no-go","provider":"Voomi Supply","version":"1.0","type":"link"}