{"product_id":"midland-industries-63644ms-square-head-plug-4in-mpt-316-ss","title":"Midland Industries 63644MS Square Head Plug 4in Mpt 316 Ss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe MIDLAND INDUSTRIES 63644MS is a cored square head plug designed for use in piping systems that require a secure, pressure-rated pipe thread closure. Built from 316 stainless steel, this plug offers strong resistance to corrosion in demanding fluid and gas handling applications. It features a 4-inch male pipe thread (MPT) connection with a 4-8 thread specification and is rated for 150 lb pressure class service. The square head drive design allows for reliable installation and removal using standard pipe wrenches or square-drive tooling. Plumbers, pipefitters, and industrial maintenance technicians install this fitting in systems where a threaded port needs to be sealed off cleanly and held at rated pressure.\u003c\/p\u003e\u003cp\u003eThis plug is suited for commercial and industrial piping installations where stainless steel is required for corrosion resistance or sanitary compliance. Typical applications include process piping, chemical handling lines, food and beverage systems, marine environments, and similar services where carbon steel fittings would be inadequate. The SP-114 series is a 316 stainless steel fitting line, making this plug appropriate for harsh or corrosive service conditions. At a 4-inch connection size, this is a large-diameter fitting more commonly found in commercial or light industrial settings than in residential work.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e316 stainless steel construction for superior corrosion resistance in harsh environments\u003c\/li\u003e\n\u003cli\u003e4-inch MPT connection with 4-8 thread specification for secure threaded pipe engagement\u003c\/li\u003e\n\u003cli\u003e150 lb pressure class rating suitable for a wide range of commercial piping applications\u003c\/li\u003e\n\u003cli\u003eCored square head design allows wrench installation and removal without slippage\u003c\/li\u003e\n\u003cli\u003ePart of the SP-114 316 SS fittings series for consistent material specification across a system\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style threaded plug for use with 4-inch female-threaded pipe fittings and valves rated at 150 lb pressure class in 316 stainless steel piping systems.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and removal should be performed by a licensed plumber or pipefitter following applicable IPC or process piping codes. Depressurize and isolate the piping system completely before installing or removing any threaded plug. Apply appropriate thread sealant or PTFE tape to the male threads prior to installation. Use a properly sized pipe wrench on the square head to achieve a secure fit without over-stressing the fitting or adjacent pipe.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Size\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Type\u003c\/strong\u003e: MPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Specification\u003c\/strong\u003e: 4-8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure Class\u003c\/strong\u003e: 150 lb\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: 316 Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 2.2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 4.45 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 4.45 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 3.41 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: MIDLAND INDUSTRIES\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 63644MS\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MIDLAND INDUSTRIES","offers":[{"title":"Default Title","offer_id":67950585676082,"sku":"63644MS","price":99.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a9ad5b8370b710e6c7694ddcb8330f81_998cff82-4b1a-4d34-90a1-6560cd58e48d.jpg?v=1791722414","url":"https:\/\/voomisupply.com\/products\/midland-industries-63644ms-square-head-plug-4in-mpt-316-ss","provider":"Voomi Supply","version":"1.0","type":"link"}