{"product_id":"osg-1500101800-plug-thread-gage-1-4-28-2b-double-end","title":"Osg 1500101800 Plug Thread Gage 1\/4-28 2B Double End","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 1500101800 is a double-end plug thread gage used to verify internal thread conformance to 1\/4-28 UNF specifications at a 2B tolerance class. The Go end checks that the threaded hole accepts a mating fastener without interference, while the No Go end confirms the thread has not been cut oversized. Made from high speed steel, this gage delivers the hardness and dimensional stability required for consistent inspection results in production or field quality-control environments. A handle is included. Machinists, quality technicians, and precision tool trades use this type of gage as part of standard thread inspection workflows.\u003c\/p\u003e\n\u003cp\u003eThis gage is suited for inspecting 1\/4-28 UNF tapped holes in metal components across manufacturing, aerospace, automotive, and general mechanical assembly applications. The 2B classification covers the standard tolerance range for most commercial threaded fastener applications. The double-end design consolidates Go and No Go functions into a single tool, reducing the number of gages required at an inspection station. It is appropriate for both shop-floor use and incoming or outgoing quality inspection.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eDouble-end design with Go and No Go members in a single gage\u003c\/li\u003e\n  \u003cli\u003eInspects 1\/4-28 UNF internal threads to 2B tolerance class\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction for wear resistance and dimensional stability\u003c\/li\u003e\n  \u003cli\u003eHandle included — ready to use out of the box\u003c\/li\u003e\n  \u003cli\u003eCompact overall length of 3 inches for easy handling at the inspection station\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for inspection of 1\/4-28 UNF internally threaded features held to a 2B tolerance class. Suitable for use anywhere that standard UNF thread verification is required per applicable thread standards.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThread gages are inspection tools, not cutting tools — they should never be forced into a tapped hole. Apply the Go member by hand with light rotational pressure; it should pass through the full thread length without binding. The No Go member should not enter more than two turns. Clean the gage and the part before each check to prevent debris from causing false readings, and store the gage in its protective case when not in use 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: 1\/4-28 UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTolerance Class\u003c\/strong\u003e: 2B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGage Type\u003c\/strong\u003e: Go \/ No Go\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Configuration\u003c\/strong\u003e: Double End\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHandle Included\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 pounds\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: OSG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1500101800\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51738275676466,"sku":"1500101800","price":146.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/108c64bd5b49d0621ff8f354586c6776_9e450703-99be-41f4-a885-5bc2cfa18968.jpg?v=1788797527","url":"https:\/\/voomisupply.com\/products\/osg-1500101800-plug-thread-gage-1-4-28-2b-double-end","provider":"Voomi Supply","version":"1.0","type":"link"}