Nietverbinder

Nietverbinder, literally rivet connector in German, refers to a permanent mechanical fastener used to join two or more components by means of a rivet. In installation, the rivet deforms to form a second head that clamps the parts together, creating a durable joint without threaded components. The basic rivet assembly consists of a rivet body and a mandrel; when the rivet is set, the mandrel is driven or pulled, causing the rivet to expand and hold the parts. In blind rivets, the mandrel remains inside the rivet and breaks off after setting, allowing installation from one side.

Common types include solid rivets, which require access to both sides of the joint and are driven with specialized tools, and blind rivets (also called hollow or pop rivets), which can be installed from one side using a setting tool. Structural rivets are designed for higher strength, and rivet nuts provide a threaded insert in thin material. Materials include aluminum, steel, stainless steel, and copper, with various head shapes such as round or countersunk, and different coatings to resist corrosion.

Applications span aircraft and automotive manufacturing, metal cabinets and enclosures, architectural framing, and furniture assembly. Advantages of Nietverbinders include fast, reliable joints and applicability to thin or dissimilar materials; drawbacks include the permanent nature of the connection, potential difficulty in disassembly, and the need for proper hole preparation and alignment. Selection depends on load requirements, material compatibility, access for setting tools, and environmental conditions.