{"product_id":"spi-37-120-3-plug-thread-gage-m16x1-5-6h-single-end-go","title":"Spi 37-120-3 Plug Thread Gage M16x1.5 6H Single End Go","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SPI 37-120-3 is a single-end Go plug thread gage designed to verify internal thread conformance to M16x1.5 metric specifications at 6H tolerance class. Used in dimensional inspection and quality control workflows, this gage confirms that a threaded hole has been cut within the upper boundary of acceptable tolerance, allowing a correctly sized fastener to pass freely. The gage member measures 0.63 inches in diameter and 1.87 inches in length, with a total weight of 0.22 pounds. A separate handle is required for operation and is not included. Traceability certification meets ANSI standards with NIST traceability.\u003c\/p\u003e\n\u003cp\u003eThis gage is suited for inspection departments, machine shops, manufacturing floors, and field quality checks wherever M16x1.5 internal threads must be verified to 6H class. Typical applications include verifying threaded bores in mechanical assemblies, hydraulic fittings, automotive components, and industrial equipment. The Go gage is used as the first check in a Go\/No-Go inspection sequence to confirm the thread has not been cut undersized or with excessive taper. Machinists, quality technicians, and metrology professionals are the primary users of this tool.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eGo member verifies that internal M16x1.5 threads fall within the acceptable upper tolerance boundary\u003c\/li\u003e\n  \u003cli\u003e6H tolerance class meets standard metric thread fit requirements for general fastening applications\u003c\/li\u003e\n  \u003cli\u003eSingle-end design with a compact gage member: 0.63 inches wide by 1.87 inches in length\u003c\/li\u003e\n  \u003cli\u003eANSI traceability certification with NIST-traceable standards included\u003c\/li\u003e\n  \u003cli\u003eLightweight at 0.22 pounds for easy bench or in-process use\u003c\/li\u003e\n  \u003cli\u003eHandle not included — compatible with standard plug gage handles sold separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a Go plug gage member for use with standard plug gage handles (sold separately) capable of accepting a gage member sized for M16x1.5 thread inspection at 6H tolerance class.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis gage member must be seated securely in a compatible plug gage handle before use. Inspect the gage member and the threaded bore for debris, chips, or damage prior to each use, as contamination will produce inaccurate readings. Apply only hand pressure when inserting the Go member — never force the gage, as this can damage threads or the gage itself. Store the gage in a protective case away from moisture and abrasive surfaces 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: M16x1.5\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\u003eLength\u003c\/strong\u003e: 1.87 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\/Diameter\u003c\/strong\u003e: 0.63 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.22 pounds\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: ANSI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: NIST\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: 37-120-3\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPIROTHERM","offers":[{"title":"Default Title","offer_id":51700086374706,"sku":"37-120-3","price":83.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/632225d3ee85c3b238dc7e29128d0a1c.jpg?v=1788385839","url":"https:\/\/voomisupply.com\/products\/spi-37-120-3-plug-thread-gage-m16x1-5-6h-single-end-go","provider":"Voomi Supply","version":"1.0","type":"link"}