Abstract: A simplified method for producing internally threaded blind fasteners includes cold forming of the thin deformable walls of the fastener into bowed out sections by reverse extrusion to form deep grooves, and subsequent further cold forming to increase the diameter of this thin walled portion of the fastener to form it into bowed out sections. Three or more or even five or more sections may be formed, to increase the “pull-out” resistance by increasing the “footprint” of the deformed sections of the blind fastener.

Abstract: A quick release drive assembly intercouples a reversible hand held motor and a drive screw for mounting blind fasteners in place. A replaceable adaption assembly includes the drive screw, the nosepiece of the unit and a drive adaptor for supplying torque from the motor to the drive screw. An outer housing is coupled to the nosepiece by three ball bearings which extend into a peripheral groove in the nosepiece, and which are held in place by a locking zone of reduced inner diameter in a quick release sleeve. The quick release sleeve has an adjacent release zone of increased inner diameter, into which the ball bearings may shift. A locking spring biases the quick release sleeve to its locked position. An eject spring is operative when the quick release sleeve is shifted to its released position, to eject the adaption assembly.

Abstract: A quick release drive assembly intercouples a reversible hand held motor and a drive screw for mounting blind fasteners in place. A replaceable adaption assembly includes the drive screw, the nosepiece of the unit and a drive adaptor for supplying torque from the motor to the drive screw. An outer housing is coupled to the nosepiece by three ball bearings which extend into a peripheral groove in the nosepiece, and which are held in place by a locking zone of reduced inner diameter in a quick release sleeve. The quick release sleeve has an adjacent release zone of increased inner diameter, into which the ball bearings may shift. A locking spring biases the quick release sleeve to its locked position. An eject spring is operative when the quick release sleeve is shifted to its released position, to eject the adaption assembly.

Abstract: A simplified method for producing internally threaded blind fasteners includes cold forming of the thin deformable walls of the fastener into bowed out sections by reverse extrusion to form deep grooves, and subsequent further cold forming to increase the diameter of this thin walled portion of the fastener to form it into bowed out sections. Three or more or even five or more sections may be formed, to increase the “pull-out” resistance by increasing the “footprint” of the deformed sections of the blind fastener.