{"product_id":"spi-34-220-4-plug-thread-gage-5-40-6h-single-end-go","title":"Spi 34-220-4 Plug Thread Gage 5-40 6H Single End Go","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 34-220-4 is a single-end Go plug thread gage designed to verify internal threads to the 5-40 UNC specification at 6H tolerance class. Machined from steel, this gage gives technicians and machinists a reliable pass\/fail check on threaded holes in small fastener applications. The Go member confirms that the thread form, pitch, and minor diameter fall within the acceptable tolerance zone. A NIST-traceable traceability certification is included, making this gage suitable for use in quality-controlled and inspection environments. Handle is not included and must be sourced separately to match the Size 0 handle specification.\u003c\/p\u003e\n\u003cp\u003eThis gage is used in precision machining, assembly inspection, and quality assurance settings where 5-40 threaded components must be verified before acceptance. Typical applications include small instrument hardware, electronics enclosures, and light mechanical assemblies that use the 5-40 thread form. It is sized for a Size 0 handle, which is standard for small-diameter thread gages in this range. Metrology technicians, machinists, and quality inspectors are the primary users of this tool.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eGo member only — single-end design for dedicated pass verification of 5-40 internal threads\u003c\/li\u003e\n  \u003cli\u003e6H tolerance class per ANSI standards, suitable for general-purpose precision threading requirements\u003c\/li\u003e\n  \u003cli\u003eSteel construction provides durability and wear resistance in production inspection environments\u003c\/li\u003e\n  \u003cli\u003eNIST-traceable traceability certification included for use in documented quality systems\u003c\/li\u003e\n  \u003cli\u003eDesigned for Size 0 handle — handle sold separately, not included\u003c\/li\u003e\n  \u003cli\u003eMeets ANSI and NIST standards for thread gage conformance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style Go plug thread gage for verifying 5-40 UNC internal threads at 6H tolerance class. Compatible with standard Size 0 thread gage handles sold separately.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eA licensed or trained metrology technician or machinist should handle and store thread gages properly to prevent wear or damage to the gage members. Before use, ensure the gage and workpiece threads are clean and free of chips, burrs, or cutting fluid that could affect measurement results. Do not force the Go member through a thread — if resistance is encountered, the thread is out of tolerance or contaminated. Store in a protective case away from sources of impact, moisture, and temperature extremes to maintain 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: 5-40\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTolerance Class\u003c\/strong\u003e: 6H\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGage Type\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: Size 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: 34-220-4\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51699953959218,"sku":"34-220-4","price":86.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/051000f8939a39a8f420fee55379b671.jpg?v=1788384003","url":"https:\/\/voomisupply.com\/products\/spi-34-220-4-plug-thread-gage-5-40-6h-single-end-go","provider":"Voomi Supply","version":"1.0","type":"link"}