A bolt for clamping adjoining parts includes a bolt body adapted for insertion in openings of the adjoining parts from one side of the adjoining parts. An actuator is received in the bolt body and actuatable from one end of the bolt body. Mounted in the bolt body and interacting with the actuator is a clamping mechanism which includes tilting elements configured to tilt out of the bolt body in opposition to a restoring force, when the actuator is actuated.

A fastener for fastening a drill jig to overlapping work pieces and clamping the overlapping work pieces for facilitating accurate drilling of the overlapping work pieces including a fastener body and a damper assembly operatively connected to the fastener body. The damper assembly is configured to enable application of a first load to the drill jig, and the fastener body is configured to enable application of a second load to the overlapping work pieces when the fastener fastens the drill jig to the overlapping work pieces. The first load is less than the second load. The first load is sufficient to hold the drill jig to the overlapping work pieces during drilling but without causing significant deformation of the drill jig. The second load is sufficient to reduce the formation of burrs during drilling of a hole through the overlapping working pieces.

A fastener assembly is provided. The fastener assembly comprises, in one example, a sleeve in an enclosure, the sleeve including an interior threaded section and a sleeve opening with a periphery forming a closed shape. The fastener additionally includes a collet body at least partially enclosed within the sleeve, the collet body comprises at least one flexible leg including a foot mating with the sleeve opening, where the sleeve opening extends around the foot and a stud including a threaded section engaging the interior threaded section.

A fastener for fastening a drill jig to overlapping work pieces and clamping the overlapping work pieces for facilitating accurate drilling of the overlapping work pieces including a fastener body and a damper assembly operatively connected to the fastener body. The damper assembly is configured to enable application of a first load to the drill jig, and the fastener body is configured to enable application of a second load to the overlapping work pieces when the fastener fastens the drill jig to the overlapping work pieces. The first load is less than the second load. The first load is sufficient to hold the drill jig to the overlapping work pieces during drilling but without causing significant deformation of the drill jig. The second load is sufficient to reduce the formation of burrs during drilling of a hole through the overlapping working pieces.

A temporary fastening device comprises a collet and mandrel connected to a temporary fastener body. The device comprises a first float cap, a second float cap, a third float cap, and a temporary fastener body which may be axially connected. The lateral clearance between the collet and a first aperture defines a first radially extending float region. The lateral clearance between the second float cap and the first float cap define a second radially extending float region. The collet and temporary fastener body may radially translate within the first and second radially extending float regions.

A temporary fastener actuation tool includes a protrusion, multiple spring clips, and a bearing shaft. The protrusion includes a groove that matches a shape of an indentation of a temporary fastener. Each spring clip includes an end that is aligned with an end of the protrusion. The spring clips are configured to hold the indentation of the temporary fastener secure against the protrusion. The temporary fastener actuation tool further includes a first bearing that is coupled to the bearing shaft and is configured to contact a cylindrical body of the temporary fastener and rotate the cylindrical body of the temporary fastener in a first direction. The temporary fastener actuation tool further includes a second bearing coupled to the bearing shaft that is configured to contact a stem of the temporary fastener and to rotate the stem in a second direction. A motor shaft is coupled to the bearing shaft.

A temporary fastener actuation tool includes a protrusion, multiple spring clips, and a bearing shaft. The protrusion includes a groove that matches a shape of an indentation of a temporary fastener. Each spring clip includes an end that is aligned with an end of the protrusion. The spring clips are configured to hold the indentation of the temporary fastener secure against the protrusion. The temporary fastener actuation tool further includes a first bearing that is coupled to the bearing shaft and is configured to contact a cylindrical body of the temporary fastener and hold the cylindrical body stationary. The temporary fastener actuation tool further includes a second bearing coupled to the bearing shaft that is configured to contact a stem of the temporary fastener and to rotate the stem. The temporary fastener actuation tool further includes a motor shaft coupled to the bearing shaft.

Fastener embodiments of the invention comprise a freely translatable collet body, which at least partially translates within an auxiliary structure, and further comprise a captive threaded screw for rotationally engaging with the collet body to transform rotational movement into translational movement through substantial arresting of collet body rotation by way of an anti-rotation means. The screw comprises a free-spin feature that functionally, but not physically, decouples a drive tool from the collet body.

An installation tool (14) has a tool body (50) comprising a first opening capable of blocking the axial end of the body (26) of a fastener (12) and an actuating device (52), rotatable relative to the tool body and comprising a second opening capable of blocking a fastener actuating element (28). The tool includes a pressure chamber (120) in the tool body a duct (122) connecting the pressure chamber to the first opening (62), a blocking element (124), movable in the duct between a retracted position and a projecting position; and a fluid inlet (55) opening onto the pressure chamber. An inflow of fluid into the pressure chamber moves the blocking element (124) to the protruding position.

A ball-lock type fastening device for connecting a work piece to a structure is disclosed. The fastening device includes a number of features designed to improve the reliability, repeatability and strength of the locking mechanism compared to traditional ball-lock fasteners. The features include the shape of the locking balls, the shape of the retention housing which engages the locking balls, and mechanisms for controlling deployment and retraction of the locking balls.