National Hardware 4" Zinc Steel Door Barrel Bolt is designed to provide reliable security for lightweight doors, chests, cabinets, and similar applications. This versatile bolt can be installed on either right or left hand doors, ing flexible installation options to suit your needs. When used vertically, the notch-in case securely holds the bolt in the locked position, enhancing safety. The bolt features a diameter of 0.32 inches and is constructed from durable steel with a brass bolt and knob, ensuring long-lasting performance and resistance to wear. Model Number: N151-654