Study for the Oklahoma Locksmith Exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Practice this question and more.


What is the primary purpose of a thru-bolt trim on mortise locks?

  1. Increase security

  2. Make the installation look better

  3. Facilitate easier key access

  4. Reduce the cost of installation

The correct answer is: Increase security

The primary purpose of a thru-bolt trim on mortise locks is to increase security. Thru-bolt trims provide a sturdy and secure method of fastening the lock to the door, preventing unauthorized removal or tampering. By having a thru-bolt that passes through the door, it helps to strengthen the connection between the lock mechanism and the door itself, ensuring that it cannot be easily dislodged or compromised. This feature is particularly important in applications where safety and security are paramount, such as in commercial, industrial, or high-traffic areas. While improving the aesthetic appearance of the installation may be a secondary benefit, and ease of key access might be enhanced by the design of the lock itself, these factors do not address the specific function of the thru-bolt trim. Similarly, reducing the cost of installation is not a primary goal of a thru-bolt trim; rather, the benefits relate directly to enhancing the overall robustness and reliability of the locking mechanism.