{"product_id":"smith-cooper-1-1-4-in-mpt-stainless-steel-square-head-plug","title":"Smith-Cooper 1-1\/4 in. MPT Stainless Steel Square Head Plug","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Smith-Cooper 1-1\/4 in. MPT Stainless Steel Square Head Plug — a precision-crafted, lead-free solution engineered to seal off unused piping with confidence. Built from sturdy stainless steel, this plug resists corrosion and wear, delivering reliable performance in water and utility lines where durability matters most.\u003c\/p\u003e \u003cp\u003eKey features that set this plug apart:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e1-1\/4\" MPT threads\u003c\/strong\u003e provide a standard, compatible fit for common female pipe connections, simplifying replacements and maintenance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSquare head design\u003c\/strong\u003e enables easy installation and removal with a wrench, giving you solid torque control in tight spaces.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eLead-free construction\u003c\/strong\u003e supports safety and compliance for plumbing and potable-water applications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStainless steel material\u003c\/strong\u003e delivers long-lasting corrosion resistance, reducing the risk of leaks over time in challenging environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaximum pressure rating of 300 psi\u003c\/strong\u003e makes it suitable for a wide range of low-to-medium pressure systems, from residential plumbing to service line work.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBagged packaging\u003c\/strong\u003e keeps the plug clean and ready for immediate use in inventory or job sites.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIdeal use scenarios:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eSealing off an unused branch or service line during renovations or maintenance projects.\u003c\/li\u003e \u003cli\u003eTemporary or permanent plugging in irrigation, water supply, or hydraulic systems where a reliable, full-diameter seal is needed.\u003c\/li\u003e \u003cli\u003eConversions or retrofits where a robust, long-lasting NPT connection is preferred over flimsy caps.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy choose this plug over alternatives? The combination of lead-free stainless steel and a square head means you get corrosion resistance, durable sealing, and easier torque control in one component. It’s designed for repeatable performance under pressure, reducing maintenance interruptions and helping you finish projects faster with fewer fittings to source.\u003c\/p\u003e \u003cp\u003eHow to use (practical tips):\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eEnsure threads are clean and free of debris before installation.\u003c\/li\u003e \u003cli\u003eApply a compatible pipe thread sealant or Teflon tape as needed for a proper seal on MPT connections.\u003c\/li\u003e \u003cli\u003eThread the square-head plug into the mating female thread by hand, then snug with a wrench—avoid over-tightening to prevent thread damage.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eSpecifications at a glance:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e Square Head Plug\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless Steel\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEnd 1:\u003c\/strong\u003e MPT, 1-1\/4\" diameter\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaximum pressure:\u003c\/strong\u003e 300 psi\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Bagged\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eLead content:\u003c\/strong\u003e Lead-free\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Smith-Cooper\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eTrusted by professionals and DIY enthusiasts alike, this Smith-Cooper plug delivers a practical combination of safety, durability, and ease of use. When you need a dependable, compliant stopper for standard piping, this 1-1\/4\" MPT stainless steel square head plug is ready to work — lock it in, and get your project flowing smoothly again.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Smith-Cooper","offers":[{"title":"Default Title","offer_id":52176686547218,"sku":"4809869","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0928\/1024\/8466\/files\/4809869_A.eps_High.jpg?v=1775591200","url":"https:\/\/nationalhardwaregroup.com\/products\/smith-cooper-1-1-4-in-mpt-stainless-steel-square-head-plug","provider":"National Hardware Group","version":"1.0","type":"link"}