Oklahoma Locksmith Practice Exam

The primary purpose of a thru-bolt trim on mortise locks is to increase security. Thru-bolt trim is designed to help secure the lock more effectively to the door. By using bolts that pass through the door and are secured on the opposite side, the overall strength of the lock installation is enhanced. This design minimizes the risk of tampering from the outside and makes it more difficult to force entry, as the lock is securely anchored. While the appearance of the installation might be a secondary benefit of using thru-bolt trim, the main focus is on providing enhanced security features. The other choices, like making the installation look better and reducing costs, do not address the primary functionality and intention behind using thru-bolt trim. Instead, they serve as additional factors that might influence a locksmith or installer’s decision but are not the primary goal of this component.