Abstract: Fluid tight blind fasteners and methods tor fastening are provided. The sleeve comprises a first sleeve end comprising a first inner surface, a second sleeve end comprising a second inner surface, and an elongate portion extending from the first sleeve end to the second sleeve end. The first inner surface and the second inner surface define a sleeve cavity extending into the sleeve from the first sleeve end toward or to the second sleeve end. The pin is configured to be at least partially received by the sleeve cavity. The pin comprises a first pin end portion configured to receive a torque, a second pin end, and a shank extending from the first pin end portion to the second pin end. Tire shank comprises threads and the threads are configured to form threads on the second inner surface of the sleeve.

Abstract: A fastener includes a sleeve comprising first and second ends, a tubular portion having external and internal surfaces, a groove formed within the external surface between the first and second ends, and an internal thread located within the internal surface at the second end. The fastener includes a core bolt comprising a cylindrical portion, an external threaded portion, and a thread runout between the cylindrical portion and the threaded portion. The core bolt is configured to be disposed within the sleeve. The external threaded portion is configured to threadedly engage the internal thread of the sleeve. An installation motion of the core bolt within the sleeve generates a compressive load on the sleeve. The groove is configured to facilitate a formation of a bulb in the sleeve in response to the compressive load.

Abstract: Fluid tight blind fasteners and methods tor fastening are provided. The sleeve comprises a first sleeve end comprising a first inner surface, a second sleeve end comprising a second inner surface, and an elongate portion extending from the first sleeve end to the second sleeve end. The first inner surface and the second inner surface define a sleeve cavity extending into the sleeve from the first sleeve end toward or to the second sleeve end. The pin is configured to be at least partially received by the sleeve cavity. The pin comprises a first pin end portion configured to receive a torque, a second pin end, and a shank extending from the first pin end portion to the second pin end. Tire shank comprises threads and the threads are configured to form threads on the second inner surface of the sleeve.