PolyGrip (blind rivet nuts)

A wide grip range: A single PolyGrip® blind rivet can replace to up to fi ve different dimensions of DIN standard blind rivets. • Outstanding hole fi lling capability: The rivet body expands radially during the setting process and compensates hole tolerances, centering deviations and differences in diameter, thus always building up a playfree and tight joint. • Safe rest mandrel locking: PolyGrip® blind rivets neither generate rattling noises due to free moving rest mandrels nor do they allow the risk of loss of the rest mandrel. • Splash waterproof are the PolyGrip® blind rivets under certain conditions too. Hole fi lling and rest mandrel locking make of them a real alternative to closed end rivets when it is essential to prevent water fl owing through the whole joint and not only through the rivet body. • A large closing head: for a high tensile and unbuttoning resistance.

GESIPA® blind rivets are also available in colour to match the application. To guarantee the best possible durability the hollow rivets are painted using a two-component epoxy resin paint in a stow enamelling process. In addition to the visual benefi ts, the painted blind rivet also has added protection against corrosion. Aluminium blind rivets are best suited for this procedure. In the long-term they achieve the desired visual effect when joining coloured parts. GESIPA® blind rivets are available in the standard RAL colours. On request, steel blind rivets are also available in RAL colours or even special colours. Another method for colouring blind rivets and for protecting them against corrosion is to anodize them. The Eloxal method is more complex but is the most durable process for coloured blind rivets.

A closed end rivet The rivet body of the GESIPA CAP ® blind rivet is absolutely air and watertight. Liquids cannot seep through, could however seep around the set rivet, if the setting hole is too large. Therefore great care must be brought to fullfi lling the hole tolerances. The GESIPA CAP ® blind rivet – The structure For technical reasons, the rivet mandrel of the GESIPA CAP ® blind rivet must be fi xed in the rivet body. However this means that the rivet body can only deform slightly during the setting process. As a result, the cap blind rivet only has marginal hole fi lling capability. However this is necessary to be able to compensate large bore-hole tolerances. The GESIPA CAP ® blind rivet – Tight connections with care The above-mentioned technical situations make careful preparation of the application imperative. The hole diameter should be as tight as possible to ensure a fl awless function in the application for a long period.

Specifi cation: BRN M5x7x26 KK steel, hose connection, galvanized Grip range: 0,50 - 2,50 mm Predrilled hole ø: 7,1 + 0,1 mm Use: Connection of a pneumatic hose (ø 4 mm) for use with liquids and gases Customer advantages: • Reduction in variety of parts • Better look (single colour) • Reduced assembly effort • Simplified assembly process • Access to component from one side • Saving on material and assembly costs Sectors: • Ventilation and air conditioning technology • Pneumatics accessories • Housing and container manufacturing