National Hardware 3" Brass 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. The bolt features a diameter of .32 inches and is constructed from durable steel with a brass bolt and knob, ensuring both strength and an attractive finish. Model Number: N151-589