A tie-rod assembly includes a tube member having a first set of threads at a first end of the tube member and a second set of threads at a second end of the tube member. The tie-rod assembly includes a first clevis coupling assembly having a first width dimension and a third set of threads compatible with first set of threads and first clevis coupling assembly has a second width dimension which includes a portion of the third set of threads with the second width dimension greater than the first width dimension. Further included is second clevis coupling assembly having a third width dimension and a fourth set of threads compatible with second set of threads and the second clevis coupling assembly has a fourth width dimension which includes a portion of the fourth set of threads with the fourth width dimension greater than the third width dimension.

A tie-rod assembly includes a tube member having a first set of threads at a first end of the tube member and a second set of threads at a second end of the tube member. The tie-rod assembly includes a first clevis coupling assembly having a first width dimension and a third set of threads compatible with first set of threads and first clevis coupling assembly has a second width dimension which includes a portion of the third set of threads with the second width dimension greater than the first width dimension. Further included is second clevis coupling assembly having a third width dimension and a fourth set of threads compatible with second set of threads and the second clevis coupling assembly has a fourth width dimension which includes a portion of the fourth set of threads with the fourth width dimension greater than the third width dimension.

The invention relates to a self-punching fastening element for connecting a first workpiece to a second workpiece. The fastening element comprises a ring section that surrounds an opening of the fastening element in a peripheral direction and that has a workpiece contact surface, which is bounded at a radial outer side by a punching edge, and a shaft section that is connected to the ring section by means of a coupling section, that is arranged coaxially with the opening, that extends from the side of the ring section remote from the workpiece contact surface, and that has an outer contour that is designed complementary to an inner contour of the opening such that the shaft section can be guided at least partly through the opening after a separation of the connection with the ring section. Furthermore, the invention relates to a component assembly, comprising a self-punching fastening element as well as a first workpiece and possibly a second workpiece, and to a method of manufacturing the component assembly.

A downhole welding tool includes a tool body and a welding device coupled to the tool body. The welding device includes a carrier arm reversibly pivotable between a collapsed configuration of the welding device in which the carrier arm is oriented parallel to the tool body and an extended configuration of the welding device in which the carrier arm projects outward from the tool body at an acute angle relative to the tool body, as well as a consumable welding tip secured to the carrier arm. The downhole welding tool also includes a rotatable actuator coupled to the tool body adjacent the welding device and configured to adjust the carrier arm between the collapsed configuration and the extended configuration.

A downhole welding tool includes a tool body and a welding device coupled to the tool body. The welding device includes a carrier arm reversibly pivotable between a collapsed configuration of the welding device in which the carrier arm is oriented parallel to the tool body and an extended configuration of the welding device in which the carrier arm projects outward from the tool body at an acute angle relative to the tool body, as well as a consumable welding tip secured to the carrier arm. The downhole welding tool also includes a rotatable actuator coupled to the tool body adjacent the welding device and configured to adjust the carrier arm between the collapsed configuration and the extended configuration.

A fastener assembly may comprise a housing defining a first cavity and a second cavity. A first threaded member and a second threaded member may be located within the housing. A first biasing member may be coupled to the first threaded member. A second biasing member may be coupled to the second threaded member.

A breakaway threaded fastener is provided. The fastener has a stud, a pin, and a cap. The stud has a hollow cavity with a closed end, an open end, a wall, and an outer surface. The outer surface has an external thread. The pin is in the hollow cavity. The pin has a first end at the closed end of the stud and a second end extending above the open end of the stud. The cap has another hollow cavity with a closed end, an open end, and an internal thread. The cap is threadably engaged to the open end of the stud via the internal and external threads so that the second end of the pin abuts the closed end of the cap.

A breakaway threaded fastener is provided. The fastener has a stud, a pin, and a cap. The stud has a hollow cavity with a closed end, an open end, a wall, and an outer surface. The outer surface has an external thread. The pin is in the hollow cavity. The pin has a first end at the closed end of the stud and a second end extending above the open end of the stud. The cap has another hollow cavity with a closed end, an open end, and an internal thread. The cap is threadably engaged to the open end of the stud via the internal and external threads so that the second end of the pin abuts the closed end of the cap.

A fastener bolt for clamping an electric wire includes a bolt part and a nut part. The bolt part has a head section, a thread section, and a shearing section connecting the head section and the thread section. The nut part is screwed onto the thread section. The shearing section is configured to break if a predetermined fastening torque is exceeded. The thread section is hollow and has a predetermined tensile breaking strength.

High-strength screw (1), with a head (2) with a tool engagement contour (4), a shank (3) with a free end (5) pointing away from the head (2), a threaded section (6) with a thread (7) being arranged on the shank (3), the thread (7) being formed as a metric ISO thread or inch thread, the head (2) and the shank (3) being designed as materially separate parts, the head (2) having a coupling recess (8) arranged radially inside with an axial force transmission element (9) and a torque transmission element (10), the shank (3) having a coupling element (11) arranged radially outside on its outer circumference with an axial force transmission counter element (12) and a torque transmission counter element (13), the coupling element (11) engaging in the coupling recess (8), the axial force transmission element (9) and the axial force transmission counter element (12) being designed and arranged to positively interlock in such a way that an axial translatory movement of the head (2) relative to the shank (3) in the direction away from the free end (5) of the shank (3) is prevented or will be prevented, in particular non-releasably, and the torque transmission element (10) and the torque transmission counter element (13) being designed and arranged to interlock in such a way that a rotational movement of the head (2) relative to the shank (3) in the tightening direction of the thread (7) is or will be prevented.