A rivet is a rivet shaped object used to connect two parts (or components) with a through hole and a cap at one end. In riveting, the riveted parts are connected by self deformation or interference.

Core rivet
Pop rivets are one kind of rivets for single-sided riveting, but they must be riveted with special tools - pull riveter (manual, electric, pneumatic). This kind of rivets is especially suitable for riveting occasions where it is inconvenient to use ordinary rivets (it must be riveted from both sides), which are widely used in construction, automobile, ship, aircraft, machinery, electrical appliances, furniture and other products. Open end blind rivets are widely used, countersunk blind rivets are suitable for smooth riveting, and closed blind rivets are suitable for riveting with high load and certain sealing performance.

Types and uses of rivets
1. Fan rivets are specially designed for manual installation. They can be pulled in through the holes of panel or underframe. They are made of elastomer materials with good toughness. They are ingeniously designed with elastic functions and corresponding holes. They are not easy to slide out after being pulled in. Fan rivets are mainly used for fixing fans, heat sinks and chips in electronic computer case, with anti vibration and noise reduction.
2. Core rivets are new riveting fasteners that are very convenient for riveting. They can show their unique advantages in a relatively narrow space or in an environment where there is no riveter or riveter can not be used. Two or more connected parts can be riveted successfully by hitting the nail core with a hammer and other tools on one side. According to the shape of the brim, the rivet can be divided into flat round head rivet and countersunk head rivet.
3. Rivet types can be roughly divided into open type, closed type, double drum type and single drum type series.
4. Countersunk type blind rivets: riveting of riveted parts with smooth and beautiful surface after riveting.
5. Double drum pop rivets: when riveting, the rivet core will pull the end of the rivet body into double drum shape, clamp the two structural parts to be riveted, and reduce the pressure on the surface of the structural parts. It is mainly used for riveting various thin structural parts in vehicle, ship, construction, machinery, electronics and other industries.
6. Brim pop rivets: compared with ordinary pop rivets, the diameter of the aluminum cap of the rivet is significantly larger. When the rivet is riveted with the connector, it has a larger contact area, a stronger supporting surface, which can enhance the torque strength and bear a higher radial tension. Applicable industry: it is suitable for fastening soft and fragile surface materials and oversized holes. It increases the brim diameter and has special protection application for soft materials.
7. Closed type blind rivets: designed to cover the spindle head after riveting, it is very suitable for various applications with waterproof requirements. With high shear force, anti vibration, anti high pressure.
8. All aluminum blind rivets: the rivet body also adopts high-quality aluminum wire, which is beautiful and durable after riveting and will never rust: compared with ordinary blind rivets, the riveting strength of rivets is lower, which is suitable for the connection parts with soft materials.
9. Open stainless steel rivet: the rivet is an excellent choice with high tensile demand and corrosion resistance.
10. Flat head and round head rivet: mainly used for riveting occasions of metal sheet or leather, canvas, wood and other non-metallic materials.
11. Semi hollow rivets: mainly used for riveting occasions with small load.
12. Blind rivets: light weight, weak rivet head, used for riveting non-metallic materials with small load.

Precautions for rivets
1. When checking the finished pop rivets, it is necessary to check: the diameter of the rivet body, the length of the rivet body rod, the thickness of the rivet body cap, the diameter of the cap, the total length of the rivet core, the exposed size of the rivet core, the size of the rivet cap, and the outer diameter after assembly can be considered. In the actual inspection, the weak links of the product can be measured, such as: tensile resistance, shear resistance, and nail core anti detachment force.
2. The key point is to pay attention to the insufficient riveting, whether riveting is in place; or because the cap of the rivet core is too large, so that the pipe mouth of the rivet body can not be pulled down; there is also the jumping head, that is, the pull breaking force of the rivet core is too low or the fracture size is too thin.
3. Rivet material: aluminum, iron, stainless steel, alloy, etc.
4. The total thickness of the workpiece is generally 45% - 65% of the rivet length, no more than 60%. In addition, too short working length is also troublesome. It is recommended to take 50% - 60% as the standard If the length of rivet is too long, the head of rivet pier will be too large, and the rivet rod is easy to bend; if the length of rivet is too short, the thickness of the pier will be insufficient, and the forming of rivet head will be incomplete, which will affect the strength and compactness. The length of rivets is too long or too short is not good, only the appropriate length can achieve good riveting effect.