The LD-384 Zinc-Plated Steel Barrel Bolt Slide Lock Deadbolt is a robust surface-mounted sliding bolt designed to provide reliable secondary security for doors, gates, windows, sheds, cabinets, and a wide range of residential, commercial, and industrial applications. Constructed from high-quality zinc-plated carbon steel, this barrel bolt offers excellent corrosion resistance and durability, making it suitable for both indoor and outdoor installations in all weather conditions. The zinc plating creates a protective barrier that prevents rust and oxidation, ensuring long-lasting performance even in humid, coastal, or industrial environments. The precision-machined steel bolt pin slides smoothly within the barrel guide, providing a secure and positive locking action every time. The bolt is available in four standard lengths: 4 inch (100mm), 6 inch (150mm), 8 inch (200mm), and 12 inch (300mm), with bolt diameters ranging from 8mm for light-duty applications to 12mm for heavy-duty security requirements. The surface-mounted design means no mortising or complex installation is required; simply screw the bolt body to the door or gate and the strike plate to the frame. All mounting hardware, including zinc-plated wood screws, is included with each bolt. An optional padlock loop is available on the bolt handle, allowing a padlock to be inserted to prevent unauthorized operation of the bolt, effectively converting it into a keyed security device. This feature is particularly valuable for external gates, shed doors, and storage units where keyed access from the outside is necessary. The barrel bolt is offered in multiple finish options to match existing hardware and decor: silver/zinc for a clean industrial look, black for modern and contemporary settings, brass plated for traditional and decorative applications, and white for a discreet appearance on painted doors and frames. With its simple yet effective design, easy installation, and affordable pricing, the LD-384 barrel bolt is one of the most versatile and widely used security hardware products, serving everything from residential homes and apartment buildings to commercial offices, retail stores, industrial facilities, and agricultural buildings. Whether used as a primary lock on interior doors or as supplementary security on exterior entrances, this zinc-plated steel barrel bolt delivers dependable performance at an excellent value.