{"product_id":"spi-34-362-4-plug-thread-gage-6-40-3b-double-end","title":"Spi 34-362-4 Plug Thread Gage 6-40 3B Double End","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 34-362-4 is a double-end plug thread gage designed to verify internal thread conformance to a 6-40 thread specification at a 3B class of fit. One end carries the Go member; the opposite end carries the No Go member. The Go end confirms the thread will accept a mating fastener within the tolerance boundary. The No Go end confirms the thread has not been cut oversize. The gage ships with a handle included and comes with an NIST-traceable traceability certification, making it suitable for quality-controlled manufacturing and inspection environments. Steel construction provides the dimensional stability required for repeatable gauging results.\u003c\/p\u003e\n\u003cp\u003eThis gage is used wherever internal 6-40 threads must be verified to 3B tolerance class — common in precision machining, aerospace sub-assembly, electronics hardware, and instrument manufacturing. The double-end configuration consolidates Go and No Go verification into a single tool, reducing changeover time during inspection. A handle is included, so the gage is ready to use out of the package. It is appropriate for incoming inspection, in-process quality checks, and final acceptance gauging on tapped holes.\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 gage body\u003c\/li\u003e\n  \u003cli\u003eCalibrated to 6-40 thread size at 3B class of fit\u003c\/li\u003e\n  \u003cli\u003eSteel construction for dimensional stability and wear resistance\u003c\/li\u003e\n  \u003cli\u003eNIST-traceable traceability certification included for quality system compliance\u003c\/li\u003e\n  \u003cli\u003eHandle included — no separate purchase required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for inspection and verification of internal 6-40 tapped holes held to a 3B class of fit per applicable thread standards.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThread gages are inspection tools, not cutting tools — they should never be forced into a tapped hole. Insert the Go end by hand with light torque; it should pass fully through a conforming thread. The No Go end should not enter beyond two turns on a conforming thread. Store the gage in its protective case when not in use and periodically verify calibration status against your quality system requirements to maintain NIST traceability.\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\u003eClass of Fit\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\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: 34-362-4\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51696992682290,"sku":"34-362-4","price":184.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/07815b18126678abe44c9a4881ee911f.jpg?v=1788348220","url":"https:\/\/voomisupply.com\/products\/spi-34-362-4-plug-thread-gage-6-40-3b-double-end","provider":"Voomi Supply","version":"1.0","type":"link"}