IVES FB51P-12-MD US32D PAIR, Contant Latching Top and Bottom Bolt for metal Doors

For use with metal doors only. Constant latching, inactive door remains latched until the active door is opened, releasing the automatic bottom bolt and then the top bolt can be manually released. Inactive door will relatch automatically when closed. Low actuation forces. Non-handed. Bolt throw is 3/4" with a 7/8" vertical adjustment. Bolt backset is 3/4". Standard rod length is 12", which is measured from the center of the flush bolt body to the bolt tip.