👉 The stud fluid, also known as locking compound or locking grease, is a specialized lubricant used in locking mechanisms to ensure smooth operation and prevent wear. It is typically applied to the moving parts of a lock, such as the cylinder pins and the locking plates, before the lock is installed. This fluid creates a thin, protective film that reduces friction and prevents the metal surfaces from coming into direct contact, thus extending the life of the lock and ensuring reliable operation. The fluid also helps to seal the lock against dust and debris, maintaining its integrity over time.