This black stamped barrel bolt came out of the 1950s and 1960s. The length of the piece, including the keeper, is 7 1/2 inches. The barrel bolt without the keeper, is 6 inches. The 3/8 inch barrel is controlled with a brass button. Probably meant to be used on a door, the fastener is secured with 6 screws. Three additional screws are in the keeper. Screws are included.