In implementations of a pressure lock retention fastener, the fastener assembly includes an insert sized for insertion into a fastener hole in a first panel. The fastener assembly has a threaded collet sized to slide in the insert and has expandable flanges that extend below the insert. The expandable flanges are sized for insertion into an aligned hole in a second panel. The fastener assembly also includes a screw installable through the insert to engage the threaded collet. The screw exerts a force that pushes the expandable flanges outward as screw rotation drives the screw into the threaded collet, and ridge locks of the expandable flanges seat up against the second panel effective to fasten the panels together. In implementations, a plate is installable between the panels with slotted holes having anti-rotation tabs that prevent a fastener assembly from spinning in the panel holes.

Disclosed is a fixing (1) for securing an article (21) to a surface (19). The fixing comprising a coupling arrangement (3) for coupling the fixing to an article such as cabling. Elongate members (5) extend from the coupling arrangement and are moved together to insert the fixing into a cavity (17), and spring apart to retain the fixing in the cavity. The elongate members have resiliently deformable inner formations (9). The inner formations engage with one another and resiliently deform when the elongate members are brought together, thereby increasing the pull resistance of the fixing. The inner formations are inwardly extending branches each presenting a ramped surface oriented towards the distal ends (8) of the respective elongate member, assisting in coupling an article to the fixing.

A disassembly method for an anchor that is anchored in a hole and that has an anchor bolt is provided, whereby, during the disassembly procedure, a torque is applied to the bolt of the anchor that is anchored in the hole and, in this process, the anchor bolt is stressed until it breaks. An anchor which has a head and whose bolt has an engaging profile so that a torque can be applied to the anchor bolt is also provided.

A mounting system includes an arm having a first end and a second end, the first end configured to engage a first side of a wall. The mounting system further includes a bracket configured to engage a second side of the wall opposing the first side, the bracket coupled to the arm by a fastener, wherein the second end of the arm is configured to engage the first side of the wall at a location offset from the fastener.

In implementations of a pressure lock retention fastener, the fastener assembly includes an insert sized for insertion into a fastener hole in a first panel. The fastener assembly has a threaded collet sized to slide in the insert and has expandable flanges that extend below the insert. The expandable flanges are sized for insertion into an aligned hole in a second panel. The fastener assembly also includes a screw installable through the insert to engage the threaded collet. The screw exerts a force that pushes the expandable flanges outward as screw rotation drives the screw into the threaded collet, and ridge locks of the expandable flanges seat up against the second panel effective to fasten the panels together. In implementations, a plate is installable between the panels with slotted holes having anti-rotation tabs that prevent a fastener assembly from spinning in the panel holes.

Rock bolt (1) comprising at least an elongated body (4), one end of which comprises at least a first external conical portion (16) extending through at least one hole (12) in at least a cylindrical expandable body (5), the hole (12) over a section of the bore hole in the axial direction comprises an internally conical part (15) intended to cooperate with the elongate member outer conical portion (16). Upon relative movement of the elongate body (4) and the expandable body (5) in one direction expands the expandable body in the radial direction. The relative axial movement between the elongated body (4) and the expandable body (5) is provided by at least one tensioning device (7). The rock bolt comprises at least one wedge device (2), which in use of the rock bolt, is connected to the expandable body (5) hole (12) and at least partially inserted between a first portion (17) and at least a second part (18). The rock bolt further comprises at least one connecting means (21).

A fastener device, adapted to be installed on a wall through an aperture of the wall, has an inner stud that is sized to fit through the aperture of the wall, and an outer stud that engages the inner stud. The inner stud has a securing mechanism on an outer surface of the inner stud. A spiral structure has an inner diameter that is sized to receive the inner stud, wherein the inner diameter engages with the securing mechanism of the inner stud. The outer fastener engages the inner stud to compress the spiral structure into a washer-like structure.

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.

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 improved fastener with an annular sealing flange disposed above a lead-in base clip portion adapted for insertion into an acceptance opening in a panel or other structure. A heat-shrunk seal is disposed about the perimeter of the annular sealing flange in partial covering relation to upper and lower surfaces of the annular sealing flange to provide an enhanced sealing relation between the sealing flange and the panel.