National Hardware 2-1/2" Galvanized 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, ing flexible installation options. When used vertically, the notch-in case securely holds the bolt in a locked position, ensuring added safety. The bolt features a diameter of .32 inches and is constructed from durable steel with a brass bolt and knob, combining strength and reliability for your security needs. Model Number: N151-852