Defender Security Satin Nickel Keyed Mortise Entry Lock with Glass Knob is designed for durability and versatility, featuring brass plated steel trim and a steel mortise assembly suitable for both left and right hand installations. This entry set includes elegant glass knobs that complement the satin nickel finish, adding a sophisticated touch to your door hardware. The lock bolt is key activated from both inside and outside, providing secure access control. With a 2-3/8 inch backset, this mortise lock is i for interior use only, combining functionality with classic design. The trim measures 7 inches in length and 2-1/4 inches in width, while the strike size is 4 inches by 7/8 inch, ensuring a secure and precise fit. Model Number: