Stainless Steel Material Our bolt lock is made of high-quality stainless steel. Polished chrome finish provides an elegant look, offering strength and durability. Resistant to rust and corrosion, it is designed for long-term use and heavy-duty performance. Concealed Door Security Bolts Specially designed door latches for internal doors, featuring a flat solid steel bolt that operates within a long continuous guide attached to the backplate. The slide bolt latch delivers a secure closing mechanism, ensuring strength and stability for various door types while maintaining the door's original appearance under impact. Easy to Install Flush bolt latches are installed using included screws. This door catch is intended for internal doors where locking is not required. All necessary mounting hardware is included. Professional installation by a qualified locksmith or trained individual is recommended. Wide Application Suitable for use on internal doors, cabinets, bathrooms, toilets, windows, furniture, pet gates, patios, bedrooms, and cupboards. Compatible with various wooden doors and stainless steel doors. Ideal for enhancing security on home interior doors. The door bolts can be installed vertically or horizontally, with the latch bolt operable from left to right. The lightly sprung latch mechanism allows smooth and effortless door operation. Advanced electroplating and polishing technology enhances wear resistance and surface hardness, protecting the metal and providing good insulation properties. Commonly used on doors, cabinets, bathrooms, and toilets. Suitable for standard security doors and interior doors, including all wooden and stainless steel types, adding extra security to private spaces. Note: Please verify that the bedroom door lock meets your specific requirements before purchase. Installation Method: 1. Mark the correct position at one end of the sash. 2. Chisel a groove according to the marked location. 3. Insert the internal door latch pin into the groove and secure with screws. 4. Open the door, drill holes in the floor or door frame, and install the dowel. 5. Close the door and align the bolt with the hole in the floor. Size: 1: Length: 15.2 cm 2: Length: 22 cm Color: 1: Silver 2: Red Bronze 3: Bronze 4: Gold Package Includes: 1 pc × Door Bolt