{"product_id":"spi-34-214-7-plug-thread-gage-4-40-6h-single-end-go","title":"Spi 34-214-7 Plug Thread Gage 4-40 6H Single End Go","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 34-214-7 is a single-end Go plug thread gage designed to verify internal thread dimensions on 4-40 threaded components. Manufactured from steel, it checks that a tapped hole meets the minimum material condition required for proper thread engagement. This gage conforms to ANSI standards and includes NIST traceability certification, making it suitable for use in quality control environments where documented measurement accuracy is required. It is used by machinists, quality technicians, and precision inspection personnel working with UNC 4-40 threaded fastener applications.\u003c\/p\u003e\n\u003cp\u003eThis plug thread gage is used in inspection and production environments where 4-40 threaded holes must be verified before assembly. The Go member confirms that the thread form, pitch diameter, and lead are within acceptable limits for mating fastener insertion. It fits a Size 0 handle, which is sold separately. Applications include light-duty mechanical assemblies, instrumentation, and electronic enclosures where small-diameter threaded features are common.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eGo member only — single-end design for pass\/fail inspection of minimum material condition\u003c\/li\u003e\n  \u003cli\u003e4-40 thread size with 6H classification for standard internal thread tolerance\u003c\/li\u003e\n  \u003cli\u003eSteel construction for durability in production inspection use\u003c\/li\u003e\n  \u003cli\u003eNIST traceability certification included for documented quality compliance\u003c\/li\u003e\n  \u003cli\u003eConforms to ANSI standards\u003c\/li\u003e\n  \u003cli\u003eCompatible with Size 0 handle (handle not included)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for inspection of 4-40 UNC internally threaded holes with a 6H tolerance class. Accepts a Size 0 thread gage handle, sold separately.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThread plug gages are installed and used by quality control technicians and machinists — no permanent installation is required. Before use, clean the threaded hole and gage member to remove chips, oil, or debris that could affect the reading. Apply light hand pressure only when inserting the Go member; never force or use tools to drive the gage. Store the gage in a protective case when not in use to preserve 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: 4-40\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClassification\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: 0\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHandle Included\u003c\/strong\u003e: No\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\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: 34-214-7\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51699832389938,"sku":"34-214-7","price":100.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2a869d2351bb6e60628d230dfcd13828.jpg?v=1788381763","url":"https:\/\/voomisupply.com\/products\/spi-34-214-7-plug-thread-gage-4-40-6h-single-end-go","provider":"Voomi Supply","version":"1.0","type":"link"}