Screws, Bolts, Rivets, Nuts Definition

Screws are a common fastener that is widely used in machinery, appliances, and buildings. The screw is a tool that uses the physics and mathematical principles of the circular rotation of the object and the frictional force to gradually tighten the object. And it is often seen in our daily lives. For example, the small torx screw on the mobile phone, some are rose gold screw, some are CD pattern screw, and some are five torx screws.

Bolts are mechanical parts with cylindrical threaded fasteners with nuts. A heterogeneous fastener consisting of two parts, the head and the screws, needs to be mated with a nut for fastening the two parts with through holes. This type of connection is called a bolted connection. If the nut is unscrewed from the bolt and the two parts can be separated, the bolt connection is a detachable connection.

The rivet is a spike-shaped object for connecting two parts with a through hole and a cap at one end. In riveting, the parts that are riveted are connected by their own deformation or interference.

A nut is a nut, a part that is screwed together with a bolt or a screw for fastening, and one component that must be used in manufacturing machinery.

The simplest way to distinguish is: a screw with external threads, a bolt with external threads and nuts, a rivet without thread, and a nut with internal threads.

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