{"product_id":"vermont-gage-361110040-threaded-ring-gage-4-40-unc","title":"Vermont Gage 361110040 Threaded Ring Gage 4-40 Unc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VERMONT GAGE 361110040 is a single-ring threaded ring gage used to verify the maximum material condition of external threads. Classified as a No Go gage to Class 3A tolerances, it checks that a 4-40 UNC male thread does not exceed its allowable pitch diameter limit. When a properly cut thread refuses entry to the No Go ring, the thread is within tolerance. Manufactured from tool steel and traceable to NIST standards, this gage is a standard inspection tool in precision machining, assembly, and quality control environments. It is used by machinists, inspectors, and field technicians who require reliable thread verification.\u003c\/p\u003e\n\u003cp\u003eThis gage is intended for inspection of 4-40 UNC threaded fasteners, bolts, screws, and threaded components in precision manufacturing and assembly operations. Class 3A designates a tight-tolerance fit commonly required in aerospace, electronics, instrumentation, and other applications where thread fit and load-bearing integrity are critical. The single-ring design handles the No Go function only, and is typically used alongside a separate Go ring gage to complete a full pass-fail thread inspection.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eNo Go classification confirms external threads do not exceed maximum pitch diameter for Class 3A tolerance\u003c\/li\u003e\n  \u003cli\u003e4-40 UNC thread form for inspection of fine-pitch, small-diameter fasteners\u003c\/li\u003e\n  \u003cli\u003eTool steel construction provides wear resistance for repeated inspection use\u003c\/li\u003e\n  \u003cli\u003eNIST-traceable standards compliance supports quality assurance documentation\u003c\/li\u003e\n  \u003cli\u003eSingle-ring format dedicated to No Go function for straightforward pass-fail inspection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for inspection of external 4-40 UNC threads manufactured to Class 3A tolerance specifications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThread ring gages are inspection instruments and do not require installation. Handle with clean, dry hands or lint-free gloves to prevent corrosion from skin contact. Store in a protective case away from chips, coolant, and abrasive surfaces when not in use. Periodic calibration against NIST-traceable masters is recommended to maintain gage accuracy over time.\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\u003eThread Type\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClassification\u003c\/strong\u003e: Class 3A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGo\/No Go\u003c\/strong\u003e: No Go\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRing Configuration\u003c\/strong\u003e: Single\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Tool Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: NIST\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: VERMONT GAGE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 361110040\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VERMONT GAGE","offers":[{"title":"Default Title","offer_id":51734847422770,"sku":"361110040","price":174.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/aab93e4c0f1b5adc81b3328ccfeeb851_d6ad1370-5ccd-4251-b49f-c45fc8b624a2.jpg?v=1788767330","url":"https:\/\/voomisupply.com\/products\/vermont-gage-361110040-threaded-ring-gage-4-40-unc","provider":"Voomi Supply","version":"1.0","type":"link"}