The InLock is a structural rivet with an internal locking feature. The locking feature is not visible when the rivet is applied. The mandrel is retained within the shear plane  yielding high strength under shear loads and the internal lock ensures positive mandrel retention which results in high strength under pullout loads. Typically used in the manufacturing or repair of truck bodies, the InLock is leak resistant and has excellent clamp-up force. The mandrel breaks flush with the head when applied and is set without a special nose piece.