Associated Locksmiths of America (ALOA) Test 2025 – 400 Free Practice Questions to Pass the Exam

In Weiser brand entry knobs, the most commonly used type of retainer to attach the plug and shell together is the Truarc ring. This specialized retainer is designed for secure fitting and allows for a stable connection between the plug and the shell, which is essential for the proper functioning of the lock mechanism. The Truarc ring provides enough tension to hold the components in place while still allowing for easy assembly and disassembly when necessary.

Other options, such as a lock washer, set screw, or rivet, may not provide the same level of effectiveness or convenience in this specific application. Lock washers are typically used to prevent loosening of screws due to vibration, set screws are more common in settings where an adjustable tension is needed, and rivets create a permanent joint that cannot be easily disassembled. This makes the Truarc ring the preferred choice for the design and functionality required in Weiser entry knobs.