National Hardware 2-1/2" Black Steel Door Barrel Bolt is designed for security applications on lightweight doors, chests, cabinets, and more. This versatile bolt can be installed on either right or left hand doors, providing flexible installation options. When used vertically, the notch-in case securely holds the bolt in a locked position for added safety. Crafted from durable steel with a brass bolt and knob, this barrel bolt ensures reliable performance and long-lasting strength. Its bolt diameter measures .32 inches, making it suitable for a variety of security needs. Model Number: N151-431