{"product_id":"anvil-1-1-2-in-fpt-galvanized-malleable-iron-lock-nut","title":"Anvil 1-1\/2 in. FPT Galvanized Malleable Iron Lock Nut","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Anvil 1-1\/2 in. FPT Galvanized Malleable Iron Lock Nut — a purpose-built solution for secure, vibration-resistant threaded connections. Designed for 1-1\/2\" female pipe thread (FPT) fittings, this lock nut combines rugged strength with reliable corrosion resistance to keep assemblies tight in plumbing and industrial applications.\u003c\/p\u003e \u003ch2\u003eWhy this lock nut stands out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e1-1\/2\" FPT thread size\u003c\/strong\u003e ensures compatibility with standard female pipe thread connections for quick, accurate installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMalleable iron construction\u003c\/strong\u003e delivers durable strength and improved resilience against impact and periodic movement compared with other materials.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGalvanized finish\u003c\/strong\u003e provides robust rust and corrosion protection, ideal for damp environments, outdoor setups, and long-term service.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eLock nut design\u003c\/strong\u003e engineered to resist loosening from vibration and thermal cycling, helping maintain a secure seal over time.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile plumbing and piping hardware\u003c\/strong\u003e suitable for residential, commercial, and light industrial projects where dependable threaded connections are critical.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eSecure connections in drain assemblies, water lines, and other 1-1\/2\" FPT piping configurations.\u003c\/li\u003e \u003cli\u003eApplications in areas prone to vibration or movement, where a locking mechanism preserves alignment and seal.\u003c\/li\u003e \u003cli\u003e DIY repairs or professional installations requiring a durable, corrosion-resistant locking nut in moist environments.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eConfirm compatibility: ensure the mating fittings use 1-1\/2\" female pipe threads (FPT).\u003c\/li\u003e \u003cli\u003ePrepare threads: clean the threads and apply an appropriate thread sealant or PTFE tape on male threads if required by the system.\u003c\/li\u003e \u003cli\u003eTighten with the correct tool to the recommended torque for your fittings, avoiding over-tightening which can damage threads or deform the lock nut.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eSpecifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Anvil\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Lock Nut\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEnd 1 Diameter:\u003c\/strong\u003e 1-1\/2\"\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEnd 1 Type:\u003c\/strong\u003e FPT (Female Pipe Thread)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Malleable Iron\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Galvanized\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Anvil","offers":[{"title":"Default Title","offer_id":52169086107922,"sku":"46300","price":8.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0928\/1024\/8466\/files\/46300_A.eps_High.jpg?v=1775414899","url":"https:\/\/nationalhardwaregroup.com\/products\/anvil-1-1-2-in-fpt-galvanized-malleable-iron-lock-nut","provider":"National Hardware Group","version":"1.0","type":"link"}