Safety Chain Door Lock 304 Stainless Steel Internal Latch Chain Security Chain Lock with 4 Screws & Spring Heavy Duty Anti-Theft Restrictor for Home Hotel Living UPVC Front Door Apartment(Silver)

• Easy Installation with Included Screws：Comes with 4 sturdy 20mm screws for a secure and hassle-free installation. Large plate size: 122 x 22mm; small plate size: 62 x 22mm; chain length: 150mm. This door security latch can be easily installed on various door types within minutes using basic tools
• Heavy Duty 304 Stainless Steel Construction：Crafted from premium 304 stainless steel, this safety chain door lock features a thickened plate and robust chain for enhanced durability and corrosion resistance. Ideal for daily use, door chains for front door maintains stability and strength over time, providing reliable security for various indoor and outdoor doors
• Universal Application：This stainless steel door chain lock is suitable for UPVC doors, wooden doors, and metal doors, making chain lock for door perfect for homes, apartments, hotels, offices, dorms, restaurants, and more. Ideal for families with children, elderly, and pets, it adds an extra layer of peace of mind
• Safe Ventilation & Observation：Keep your door slightly open to safely check visitors or allow air circulation while maintaining security. The anti-theft door restrictor helps prevent forced entry and provides a safe environment, perfect for day-to-day use without compromising your home’s privacy
• Spring Button Quick Release：Equipped with a spring button mechanism, this internal security latch allows easy, one-hand chain release while preventing unauthorized unlocking from the outside. Enhance your home or apartment’s safety without sacrificing convenient operation

Enhance your home security with our Safety Chain Door Lock, designed for durability, reliability, and ease of use. Made from premium-grade stainless steel, this internal door security latch resists rust, corrosion, and wear, making internal door lock a perfect choice for daily protection of your front door, bedroom, apartment, hotel, or office. This heavy-duty door security chain lock features a thickened plate and robust chain that withstand force, offering stable performance over time. The front door chain integrated spring button allows quick and simple release from the inside while preventing access from the outside, ensuring that your home remains secure yet accessible. Our door chain lock is versatile and fits various door materials, including UPVC, wood, and metal doors. Ideal for homes, hotels, apartments, dormitories, restaurants, and more, door safety chain is particularly useful for families with young children, elderly individuals, or pets, offering added safety by restricting full door opening during visitor checks or ventilation. With safety in mind, the front door chain lock allows the door to be partially opened for safe communication or air circulation without fully compromising the door’s security. The patio door lock serves as a practical anti-theft solution, making front door lock harder for unauthorized access while maintaining your privacy and protection. The stainless steel chain lock is easy to install and comes with four 20mm screws that provide a secure attachment. The large base plate measures 122 x 22mm, and the small plate is 62 x 22mm, connected by a 150mm chain with a 30mm end fitting — ensuring compatibility with standard residential doors. Simple to use, strong, and reliable, our stainless steel door chain lock provides an ideal balance between protection and ease of access. A must-have for every secure home setup.