Stainless steel anti-theft door chain, chain door buckle (304 stainless steel brushed silver)

Anti-theft security: This security chain door lock is designed with an integrated spring mechanism, providing a secure way to partially open your door for identification and ventilation. The internal lock ensures the chain cannot be released from the outside, enhancing protection for children, pets, and the elderly. A reliable front door chain lock solution that improves home and apartment security. Premium stainless steel: Made from thick stainless steel, this robust door lock resists rust, breakage, and deformation under force. Reinforced plates and welded links provide a long lifespan for both wood and metal doors. Its corrosion-resistant finish ensures this security chain door remains visually appealing and structurally sound even with frequent use. Compact size: The front door chain includes a large base plate (122 mm x 22 mm), a smaller base plate (62 mm x 22 mm), and a 170 mm chain for secure attachment. Compatible with Suitable for interior and exterior doors of homes, hotels, offices, and rental properties, this door lock chain is a versatile and essential upgrade for modern entry door security needs. Simple installation instructions: The door chain comes with 20mm stainless steel screws for easy installation on most door frames. Whether you mount the door security chain vertically or horizontally, installation takes only minutes with basic tools. The included fixings ensure a strong hold, providing a hassle-free installation for any user, from DIY enthusiasts to professionals. Multi-functional door chains: These entry door chains support a wide range of use scenarios, from residential bedrooms to hotel or apartment entrances. The front door security lock allows for safe airflow and visibility while protecting against forced entry. Designed for peace of mind, this door lock chain ensures safer environments for families, guests, and tenants.