North Carolina Locksmith Practice Exam 2026 - Free Locksmith Practice Questions and Study Guide

The term that describes a mechanical or magnetic door fastener that can automatically keep a door closed is commonly known as a latch. A latch is designed to engage when the door is closed, securing it without the need for a key or additional unlocking mechanism. This mechanism is essential in many applications where ease of access is needed while still providing a level of security, as it automatically engages when the door is closed.

Key-n-Lever refers specifically to a type of door handle mechanism that combines a key-entry option with a lever for easy opening; it does not primarily describe the automatic closing feature. LockSets include various components of a locking mechanism, typically encompassing the latch, but do not solely refer to the automatic closing function. A plug typically refers to the inner cylinder of a lock where the key is inserted, again not relating directly to the automatic closure of a door.