Rivet Nuts

Rivet nuts are used to fasten parts in hard-to-reach places, as well as where it is not possible to use welding or cut a thread for a bolt, screw, or stud.

The advantages of rivet nuts include ease of installation and the absence of deformation when joining brittle and thin materials.

Classification of rivet nuts

Rivet nuts with threaded grooves are classified according to several criteria:

• Raw material:

• aluminium alloys are typically used to make decorative rivet nuts;

• stainless steel rivet nuts are used more widely due to their high corrosion resistance, high strength, durability, and reliable fastening.

• Head type: exposed with a flat surface, or countersunk.

• Thread type: rivet nuts with nut-type threads are used for permanent joints, while screw-type grooves are used for removable fastening.

• Shank cross-section: round or hexagonal.

• The head collar can be open or countersunk, high or low.

Technology for joining materials using rivet nuts

The fastener installation process consists of the following steps:

• a hole is drilled in the parts to be joined, matching the diameter of the rivet nut’s shank;
• the fastener is installed in a special tool;
• the rivet nut is inserted into the prepared hole;
• the fastener is crimped using the pre-selected method.

The main task is to correctly select the rivet nut size based on installation and operating conditions, across all classification parameters. This type of fastener is especially convenient where access to the back side is absent or limited after the structure is assembled — for example, when installing electrical cabinets, ventilation ducting, or lighting fixtures in industrial premises, and in other similar cases.