Used in double door applications to keep the inactive door closed.
Typically requires 2 per inactive door.
Bolt is concealed when active door is shut.
Active door must be open to unlock bolt.
Only 3/4 inch wide - can even be used on doors only 1 1/8 inch thick.
Comes standard with 12" rod. Uses standard 1/4-20 threaded steel rod for lengths other than 12".
Discontinued by Ives.