Prolok

Prolok (pronounced proh-lock) is a type of threaded fastener primarily used in metalworking and construction. It is distinguished by a unique thread design featuring a locking mechanism that prevents loosening under vibration or stress. This mechanism typically involves a deformed or modified thread section that creates increased friction between the male and female threads when tightened.

Prolok fasteners are often used in applications where maintaining a secure connection is critical, such as automotive components, heavy machinery, and structural steel assemblies. The locking feature reduces the need for supplementary locking devices like lock washers or chemical thread lockers.

The term "Prolok" can sometimes refer to a specific brand or manufacturer of these types of fasteners, but it's often used generically to describe self-locking threaded fasteners with a deformed thread. Different manufacturers may utilize slightly different thread deformation techniques, but the underlying principle of creating increased friction for a secure lock remains consistent.

The advantages of Prolok fasteners include increased reliability in vibration-prone environments, reduced assembly time by eliminating the need for additional locking components, and potential cost savings due to fewer parts required. They are generally more expensive than standard fasteners due to the added manufacturing process of deforming the thread.