{"product_id":"anvil-1-1-4-in-fpt-galvanized-malleable-iron-lock-nut","title":"Anvil 1-1\/4 in. FPT Galvanized Malleable Iron Lock Nut","description":"\u003cdiv\u003e\n\u003cp\u003eFor rugged piping joints that need dependable performance, the Anvil 1-1\/4 in. FPT Galvanized Malleable Iron Lock Nut delivers a secure, corrosion-resistant connection you can trust. Sized for standard male fittings, this 1-1\/4 inch female pipe thread (FPT) lock nut threads smoothly into place, creating a tight, reliable lock in demanding environments.\u003c\/p\u003e \u003cp\u003eConstructed from durable malleable iron and finished with a galvanizing coating, this lock nut resists rust and corrosion in moisture-prone settings—from outdoor installations to demanding indoor applications. The malleable iron alloy balances strength with a little inherent give, helping to reduce the risk of cracking under vibration or dynamic loads while maintaining a robust locking action over time. The galvanized surface adds an extra layer of protection, extending service life in wet or humid conditions.\u003c\/p\u003e \u003ch3\u003eKey benefits and unique selling points\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePrecise 1-1\/4 in FPT threading\u003c\/strong\u003e—compatible with standard male pipe fittings to simplify replacement and retrofit projects.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGalvanized malleable iron construction\u003c\/strong\u003e—combines toughness with corrosion resistance, ideal for plumbing, irrigation, and light industrial uses.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSecure locking performance\u003c\/strong\u003e—engineered to resist loosening from vibration and temperature fluctuations, reducing maintenance downtime.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDurable, long-lasting finish\u003c\/strong\u003e—galvanized coating protects against rust without the need for frequent repainting or coating touches.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile in tight spaces\u003c\/strong\u003e—efficient, compact design that fits in crowded assemblies where space is at a premium.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal applications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePlumbing and water supply lines requiring a reliable, threaded lock on fittings with female threads.\u003c\/li\u003e \u003cli\u003eIrrigation systems exposed to outdoor conditions where corrosion resistance matters.\u003c\/li\u003e \u003cli\u003eIndustrial machinery and equipment assemblies that demand secure joints under vibration.\u003c\/li\u003e \u003cli\u003eRetrofitting or repairing legacy piping where a sturdy, easy-to-install lock nut is needed.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePrepare threads with a suitable thread sealant or PTFE tape to promote a leak-free seal when mating with male fittings.\u003c\/li\u003e \u003cli\u003eTighten by hand to seating torque, then give a final snug with a wrench—avoid overtightening to prevent galling or damage.\u003c\/li\u003e \u003cli\u003eInspect the galvanized finish for any nicked areas before installation; if present, proceed with standard sealing practices and monitor for leaks during initial operation.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoosing the Anvil 1-1\/4 in. FPT Galvanized Malleable Iron Lock Nut means selecting a durable, purpose-built component designed to endure harsh conditions while delivering consistent locking performance. It’s the practical, long-lasting solution for reliable threaded connections in plumbing, irrigation, and light industrial systems.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Anvil","offers":[{"title":"Default Title","offer_id":52169086238994,"sku":"46299","price":8.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0928\/1024\/8466\/files\/46299_A.eps_High.jpg?v=1775414898","url":"https:\/\/nationalhardwaregroup.com\/products\/anvil-1-1-4-in-fpt-galvanized-malleable-iron-lock-nut","provider":"National Hardware Group","version":"1.0","type":"link"}