{"product_id":"anvil-1-4-in-fpt-galvanized-malleable-iron-lock-nut","title":"Anvil 1\/4 in. FPT Galvanized Malleable Iron Lock Nut","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eAnvil 1\/4 in. FPT Galvanized Malleable Iron Lock Nut\u003c\/strong\u003e is engineered for dependable, vibration-resilient joints in piping and light machinery. Crafted from rugged malleable iron and finished in galvanized coating, this lock nut stands up to moisture, humidity, and daily wear — making it a smart choice for plumbers, maintenance pros, and DIYers working with 1\/4\" pipe threads.\u003c\/p\u003e \u003cp\u003eThe 1\/4\" internal threads (FPT) let it thread onto 1\/4\" male pipe threads, delivering a tight, leak-resistant connection in a compact profile. The lock nut design helps resist loosening when equipment or fittings endure vibration or thermal cycling, so you don't have to constantly re-tighten joints.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eInternal 1\/4\" FPT threads\u003c\/strong\u003e mate with 1\/4\" male pipe threads for a secure, compatible connection.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMalleable iron construction\u003c\/strong\u003e provides a balance of strength and ductility to withstand torque and impact without cracking.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGalvanized finish\u003c\/strong\u003e offers robust corrosion resistance in damp or outdoor environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eLocking action\u003c\/strong\u003e helps maintain joint integrity in vibration-prone installations, reducing maintenance needs.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompact, versatile form\u003c\/strong\u003e suitable for tight spaces in plumbing, HVAC, irrigation, and light industrial setups.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal applications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePlumbing fittings and pipe joints where a 1\/4\" male thread is present\u003c\/li\u003e \u003cli\u003eHVAC service connections, especially in areas with moisture exposure\u003c\/li\u003e \u003cli\u003eLight industrial machinery and equipment assemblies that require secure, vibration-resistant joints\u003c\/li\u003e \u003cli\u003eDIY projects and home repairs involving 1\/4\" pipe-thread assemblies\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTips for best results\u003c\/h3\u003e\n\u003cp\u003eEnsure compatibility with your thread standard and apply an appropriate thread sealant or PTFE tape where recommended by the fitting manufacturer. Avoid over-tightening to preserve the lock nut's locking function and the integrity of the threads. Store in a dry place to maximize the galvanized finish's lifespan.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Anvil","offers":[{"title":"Default Title","offer_id":52169085681938,"sku":"46056","price":6.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0928\/1024\/8466\/files\/46056_A.eps_High.jpg?v=1775414896","url":"https:\/\/nationalhardwaregroup.com\/products\/anvil-1-4-in-fpt-galvanized-malleable-iron-lock-nut","provider":"National Hardware Group","version":"1.0","type":"link"}