Ives FB52/FB53 Top Bolt with Auxiliary Fire Latch

FB52 TOP BOLT WITH AUXILIARY FIRE LATCH

• 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;
• FB52 Model with auxiliary fire latch eliminates the bottom bolt;
• FB53 Model with auxiliary fire latch eliminates the bottom bolt and includes a retrofit plate to cover existing bottom bolt prep;
• 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;

IVES FLUSH BOLTS OVERVIEWIves offers many accessories to ensure that a door is hung, protected and secured. Flush bolts can be used on doors that need to be secured without having a mullion or wall for latching. Flush bolts are usually used on a pair of double doors, like a large closet in a commercial building or French doors.These doors may have a lock, but the flush bolts allow one door to be anchored to the top of the door and the floor. The other door can then latch to the anchored door and keep the opening secure when not in use.There are many types of flush bolts to accommodate various doors types, sizes and application needs while also matching existing or new door hardware. Flush bolts are recessed into the top and bottom of the door edge and slide upward or downward into the jamb or threshold to keep the door secure and closed.FEATURES AND BENEFITS

• Available in both automatic and manual styles
• Designs for both hollow metal and wood door applications
• Variety of bolt throw lengths and bolt diameters to meet many application needs
• Flush bolts are non-handed for easy installation
• Meet ANSI/BHMA A156.3
• UL Listed for fire door applications

DESIGNS & FINISHESDesignsFlush bolts provide a secure opening by latching the inactive door. Designs include the offerings below. For more specific models within each offering, see the Ives Full Line catalog.

• Automatic flush bolt: Fully automatic flush bolts ensure the inactive door is latched and bolts are extended when the active door closes. The inactive door is unlatched and the bolts retract when the active door is opened.
• Constant latching flush bolt: Constant latching flush bolts ensure the inactive door remains latched until the active door is opened, releasing the automatic bottom bolt and then the top bolt can be manually released. The inactive door will re-latch automatically when the door closes.
• Manual flush bolt: Manual flush bolts must be extended and retracted manually, depending on when the inactive leaf needs to be secured or opened.

Finishes

• Flush bolts come in many BHMA standard finishes
• Custom finishes are available as an engineering special; consult Customer Service
• Please refer to the Ives Full Line catalog for finishes offered on specific product series

RESOURCES & DOWNLOADSIves Full Line Catalog