trigger bolt

trigger bolt

[′trig·ər ‚bōlt]

(design engineering)

auxiliary dead latch

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

auxiliary dead latch, auxiliary latch bolt, deadlocking latch bolt, trigger bolt

A supplementary latch in a lock which automatically deadlocks the main latch bolt when the door is closed.

McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.