Sargent Greenleaf SM181 & SM183 are versatile sliding bolt locks designed to enhance security in various applications. They feature a sturdy construction with a die-cast case and strike, providing reliable protection for doors, windows, and sliding sash. The bolt throw extends 7/16 inches, offering a secure hold. Installation is straightforward, with the included template guiding drilling and positioning for both the bolt base and strike. These locks can be mounted on right or left-hand doors, as well as vertically or horizontally, making them suitable for a range of installations.