{"product_id":"brass-rotary-knob-door-lock-cylinder-interior-replacement-core","title":"Brass Rotary Knob Door Lock Cylinder | Interior Door Core","description":"\n\u003ch2\u003eBrass Rotary Knob Door Lock Cylinder – Interior Door Replacement Core\u003c\/h2\u003e\n\u003cp\u003eUpgrade your interior doors with the \u003cstrong\u003eT30 Brass Rotary Knob Eccentric Lock Cylinder\u003c\/strong\u003e — a premium single-unlocking replacement core crafted from solid brass. Ideal for bedroom and interior doors, this lock cylinder combines a smooth eccentric rotary knob design with a brushed finish for both reliable function and refined style.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSolid Brass Construction:\u003c\/strong\u003e Made from high-quality brass for lasting durability and resistance to everyday wear.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEccentric Rotary Knob Design:\u003c\/strong\u003e The off-center knob mechanism ensures smooth, effortless operation every time you lock or unlock your door.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSingle Unlocking Core:\u003c\/strong\u003e A straightforward yet highly effective locking mechanism — simple to use and easy to install as a replacement.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrushed Surface Finish:\u003c\/strong\u003e The sophisticated brushed finish adds a touch of elegance to any interior door, complementing a wide range of décor styles.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKeys Included:\u003c\/strong\u003e Comes with keys right out of the box — ready to install with no extra purchases needed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBedroom \u0026amp; Interior Door Application:\u003c\/strong\u003e Specifically designed for bedroom and interior doors, ensuring a seamless fit and secure performance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDirect Replacement Core:\u003c\/strong\u003e Engineered as a drop-in replacement core, making upgrades or repairs quick and hassle-free.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBrass\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSurface Finish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBrushed\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLock Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSingle Unlocking Eccentric Rotary Knob\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInterior \/ Bedroom Doors\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKeys Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhy Choose This Replacement Lock Core?\u003c\/h3\u003e\n\u003cp\u003eWhether you're renovating your home or simply replacing a worn-out lock cylinder, this T30 brass rotary knob core delivers the quality and security your interior doors deserve. The solid brass body resists corrosion, while the eccentric knob mechanism provides a satisfying, precise feel with every turn. The brushed finish ensures it looks great from day one and continues to shine for years to come.\u003c\/p\u003e\n\n\u003cp\u003eFor general home hardware safety tips, visit the U.S. Consumer Product Safety Commission (CPSC) for guidance on residential safety standards.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What type of doors is this brass rotary knob lock cylinder designed for?\u003c\/h4\u003e\n\u003cp\u003eA: This replacement lock core is specifically designed for interior and bedroom doors. It features an eccentric rotary knob mechanism that is well-suited for standard interior door lock setups requiring a single unlocking core.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does the T30 brass door lock cylinder come with keys?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! Keys are included with this replacement lock cylinder, so you can install and start using it right away without needing to purchase additional keys separately.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this lock core a direct replacement for existing interior door locks?\u003c\/h4\u003e\n\u003cp\u003eA: This cylinder is engineered as a drop-in replacement core for compatible interior door locks. We recommend measuring your existing lock cylinder dimensions before purchasing to confirm compatibility with your specific door hardware.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What material is the lock cylinder made from, and how durable is it?\u003c\/h4\u003e\n\u003cp\u003eA: The lock cylinder is crafted from high-quality solid brass, which is well-known for its durability, corrosion resistance, and long-lasting performance — making it an excellent choice for everyday use on bedroom and interior doors.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What type of doors is this brass rotary knob lock cylinder designed for?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This replacement lock core is specifically designed for interior and bedroom doors. 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