HIGH QUALITY: The door lock bolts are made of high quality stainless steel, durable, rust-resistant, and have a neat polished surface that will stay intact in all exterior and interior weather conditions. EASY INSTALLATION: Before the door lock bolt installation drilling, align the bolt with the door and door frame, draw a point with a pencil, drill holes in the frame and door, then screw it into the wood with the provided screws. Wide range of uses: The safety sliding deadbolt can be used in many places, it can be installed in bedrooms, toilets, garages, basements, offices, cabinets, boxes, patio bars and many other places. Package and Size: You will receive 4 door lock bolts and 24 screws, main bolt body - L75mm x w35mm, receiver - L14 mm x W35mm, it is an indispensable tool for your home use. 100% GUARANTEE: Every safety slide lock bolt from our team is backed by unparalleled quality and reliable customer service. If you have any questions, please feel free to contact us.