The Monobolt rivet is a hole filling, multi-grip, structural breakstem rivet available in steel or aluminum construction. Multi-grip means the rivet has the capability to join component parts having a broad range of thicknesses, thus reducing inventory where a variety of rivet sizes might otherwise be necessary. Hole filling means the rivet will expand radially into the application hole to provide a strong, vibration resistant joint and compensate for irregular, oversized, slotted or misaligned holes. Also, Monobolt rivet can stop sheet movement in applications with non-standard holes.
However, the main feature of the Monobolt rivet is an internal, mechanical lock of the rivet stem. A special nose tip with a cutting ring (anvil) is required. During installation, when the mandrel head comes in contact with the nose tip, the anvil cuts into and folds material from the mandrel head (skive) into a ledge located in the inner diameter of the rivet head. This prevents the mandrel from falling back through the rivet. Additionally, the locked stem forms a weather tight seal and provides a very strong, vibration resistant joint without the damage, electrical problems or rattling due to loose stems.
High shear and tensile strength
Good sheet take-up performance
Visible lock for quick and easy inspection
Excellent hole fill via rapidly expanded body
Stem mechanically locked into body
Wide choice of installation tools
One fastener can be used to replace several standard grip fasteners
Reduced fastener inventory and simpler stock control
Compensates for irregular, oversized, slotted or misaligned holes
Can stop sheet movement in non-standard holes
Large gap closing capability
Provides very strong, vibration resistant joints
No damage, electrical problems or rattling due to loose stems