Prime-Line 3/4" x 4-7/8" Steel Nail-On Sash Springs - 2 pack

These steel-constructed sash springs from Prime-Line® feature a corner-mounted design that allows for simple and easy installation. They can be used to repair weak or broken sash cords without removing the sash and offer increased friction for better window operation. These springs quickly mount in the upper or lower corner of the sash against the jamb and provide lasting durability for your window.