{"product_id":"spi-34-331-9-plug-thread-gage-1-8-6h-single-end-go","title":"Spi 34-331-9 Plug Thread Gage 1-8 6H Single End Go","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 34-331-9 is a single-end Go plug thread gage designed to verify internal thread conformance on 1-8 UNC threaded holes. Manufactured from steel and classified to 6H tolerance, it checks that threaded features fall within the acceptable dimensional range for fit and function. The Go member confirms that a mating fastener or component will assemble correctly without interference. This gage is used on the shop floor or in inspection environments where thread quality must be verified against ANSI standards. A size 4 handle is required for use but is not included with this gage and must be sourced separately.\u003c\/p\u003e\n\u003cp\u003eThe 34-331-9 is suited for precision inspection applications in manufacturing, machining, and fabrication settings. It is used to inspect 1-8 UNC tapped holes in components across industries including mechanical assembly, structural fabrication, and general industrial production. The 6H classification makes it appropriate for standard-tolerance internal threads where controlled fit is required. Machinists, quality control technicians, and metrologists will encounter this gage in production inspection and first-article verification workflows.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eGo member checks that internal 1-8 UNC threads are within minimum material condition limits\u003c\/li\u003e\n  \u003cli\u003e6H classification conforms to ANSI tolerance standards for internal threads\u003c\/li\u003e\n  \u003cli\u003eSteel construction provides durability for repeated use in production inspection environments\u003c\/li\u003e\n  \u003cli\u003eNIST traceability certification included for documented measurement traceability\u003c\/li\u003e\n  \u003cli\u003eSingle-end design for dedicated Go inspection without a No-Go member on the same shank\u003c\/li\u003e\n  \u003cli\u003eRequires a size 4 gage handle, sold separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with standard size 4 plug gage handles. Compatible with inspection of 1-8 UNC internally threaded components requiring 6H class tolerance verification per ANSI standards.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis gage is used by machinists or quality technicians — no power tools or electrical shutoff is required. Handle must be properly seated and secured before use to avoid damage to the gage or the workpiece threads. Do not force the Go member into a thread; smooth hand engagement is expected on a conforming hole. Follow ANSI B1.2 gaging practices and maintain gage calibration intervals per your quality management system requirements.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1-8\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 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 Required\u003c\/strong\u003e: 4\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: 34-331-9\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51716061167922,"sku":"34-331-9","price":142.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/37358030a74db11881dfa58db65da869.jpg?v=1788521783","url":"https:\/\/voomisupply.com\/products\/spi-34-331-9-plug-thread-gage-1-8-6h-single-end-go","provider":"Voomi Supply","version":"1.0","type":"link"}