An anchor having a sleeve, a bolt which passes through the sleeve and at least one expansion element that is positioned in front of the sleeve and that is axially supported on the sleeve, whereby the bolt has an expansion area for the expansion element, is provided. According to the invention, it is provided for the sleeve to have a wavy shape with axial wave peaks in which the outer radius of the sleeve as well as the inner radius of the sleeve each have a maximum, and with wave valleys in which the outer radius of the sleeve as well as the inner radius of the sleeve each have a minimum.

A device for torque limiting, has a nut having a female thread. A holding element includes a top part having an entrainment profile in a rear area of the holding element for the rotatably fixed coupling of the top part with a setting tool and a receiving part having a receptacle in a front area of the holding element, in which the nut is rotatably fixedly accommodated, the top part having a passage, through which a threaded rod screwed into the nut may be led out of the holding element through the top part along the longitudinal axis of the device. The holding element includes a web connecting the receiving part and the top part and which forms a predetermined breaking point. In at least one longitudinal sectional plane of the device, the smallest wall thickness of the at least one web is present on a line segment of minimum wall thickness, which runs at an angle greater than 45° with respect to the longitudinal axis of the device. A fastening arrangement includes the device.

A device for torque limiting, has a nut having a female thread. A holding element includes a top part having an entrainment profile in a rear area of the holding element for the rotatably fixed coupling of the top part with a setting tool and a receiving part having a receptacle in a front area of the holding element, in which the nut is rotatably fixedly accommodated, the top part having a passage, through which a threaded rod screwed into the nut may be led out of the holding element through the top part along the longitudinal axis of the device. The holding element includes a web connecting the receiving part and the top part and which forms a predetermined breaking point. In at least one longitudinal sectional plane of the device, the smallest wall thickness of the at least one web is present on a line segment of minimum wall thickness, which runs at an angle greater than 45° with respect to the longitudinal axis of the device. A fastening arrangement includes the device.

“CONSTRUCTIVE DISPOSAL APPLIED IN MECHANICAL EXPANSION FIXER FOR METAL STRUCTURES OR THE LIKE”, which comprises a kit of pieces which form the mechanical expansion fixer (1), it has a hexagonal head (2) and a cylindrical body (3) endowed with full thread (4), has flat washer (5) and a jacket (6) in low-carbon steel; also on the head of the jacket (6) has a hexagonal (7) to ensure that the jacket does not rotate during mounting and tightening, which provides a wide contact area option to use the key that holds the fixer (A and B) in this way, it is not necessary to position it in the hole in a specific way, ensuring agility in the application; cone guided (8) is pre-assembled with the assembly being threaded in the thread base of the fixer (1), there is a unique locking system of guides (9), these guides fit into the openings or slots of jacket (10) and prevent the cone to rotate false in the jacket (6), as the head of the hexagon socket (7) when locked with a fixed key or star prevents this condition, this also applies in situations in which the level of friction between the fixer (1) and the base material is reduced, so there is a strong and rigid fixation between the metallic hollow profiles (11) and the fixer (1).

An expandable fixing device contains: a first screw and a second screw. The first screw includes a first head portion and a first extension extending downwardly from the first head portion, the first extension has first threads formed on the first head portion, the first screw further includes a screwing orifice defined in the first head portion and multiple slots formed on the first extension, and the first extension has multiple expansion portions formed on a distal end thereof and intersecting with the multiple slots. The second screw includes a second head portion and a second extension extending downwardly from the second head portion, and the second extension has second threads formed on an outer wall thereof, wherein the second extension has a strike stem and inserting into the screwing orifice via the first screw and pushes the multiple expansion portions to expand outwardly.

An embodiment provides a fastener including a locking member and a pin member which are connected. The locking member has a pair of leg portions that are inserted into the mount hole and a flange portion that is brought into abutment with a portion of the mount-base member that lies on a circumference of the mount hole. The pin member has a head portion that is connected to the flange portion and an extending portion that extends from a rear side of the head portion. When the head portion of the pin member is forced into the locking member, a connection between the flange portion and the head portion is released, and the extending portion travels between the pair of leg portions to expand open the pair of leg portions or to restrict the pair of leg portions from moving towards each other.

An offset hygienic anchor sealing bracket for installation of block style tube and pipe hangers to a paneled strata in which there is no access to the reverse side, there being a need to secure the anchor bracket to an anchor bolt or toggle bolt and simultaneously shield the exposed toggle bolt structure from the environment of the clean room, sterile room, or sanitary room in order to protect the irregular surface of the toggle bolt from caustic cleaning solutions and to prevent the build up of dirt and bacteria, the anchor bracket having bored pedestals in communication with the cavity which encapsulates the exposed portion of the toggle bolt and secures the anchor bracket thereto, the anchor bracket having a plurality of female threaded receptacles for receipt of fasteners utilized in assembling block style tube and pipe hangers, thus securing the block style tube and pipe hanger to the panel at a desired slope and center line.

This invention is a movable, transferable and reusable umbrella type anchor for suspending or securing attachments to a hollow back surface.

Various embodiments of the present disclosure provide a masonry member comprising an anchor member and a sleeve. The anchor member has a shank with a ridge formed thereon, the ridge extending radially outwardly from and along a surface of the shank generally from a distal end of the anchor member toward a head of the anchor member. The sleeve defines a groove. The sleeve is coaxial with and at least partially surrounds the anchor member such that the ridge of the shank is at least partially received in the groove. A cross-sectional width of at least one of the ridge and the groove reduces in a direction extending toward the head of the anchor member so withdrawal of the anchor member through the sleeve expands at least part of the sleeve radially outwardly.

Various embodiments of the present disclosure provide a masonry member comprising an anchor member and a sleeve. The anchor member has a shank with a ridge formed thereon, the ridge extending radially outwardly from and along a surface of the shank generally from a distal end of the anchor member toward a head of the anchor member. The sleeve defines a groove. The sleeve is coaxial with and at least partially surrounds the anchor member such that the ridge of the shank is at least partially received in the groove. A cross-sectional width of at least one of the ridge and the groove reduces in a direction extending toward the head of the anchor member so withdrawal of the anchor member through the sleeve expands at least part of the sleeve radially outwardly.