Various embodiments of a fastener driveable into a substrate are provided. The fastener includes a head, a shank, and a helical thread formation. Portions of the shank and helical thread formations may be tapered. The outer diameter of the shank may decrease in a direction away from the head. An outer diameter of the thread formation may increase in a direction away from the head. The head may include a plurality of extending ribs. The helical thread formation may be formed with a plurality of grooves that are respectively each partially defined by a straight cutting edge. These improvements reduce torsional failure of the fastener from over tightening.

A façade comprises a façade panel, a hanger and a fastener extending through the hanger into a blind hole provided at the façade panel. The fastener comprises a shaft defining a fastening direction and has a front face facing in the fastening direction for penetrating the façade panel and a back end facing in a direction opposite to the fastening direction, and a head arranged at the back end and having a bearing surface facing in the fastening direction for bearing on the hanger. The front face has an outer edge at an outer circumference of the shaft and a recess falling short in the fastening direction with respect to the outer edge.

A metal anchoring fastener fastens millwork onto walls constructed with wall cladding fastened to steel studs. The load typical of a loaded cabinet is borne by the steel stud anchors owing to the mate between the profile of the steel stud anchor and the layers of millwork and wall cladding and steel stud that said anchor penetrates. The pitch of the thread adorning the profile of the steel stud anchor progresses non-linearly along the length of said shaft, the shaft is generally non-linear in profile, and the thread profile is non-uniform along the length of said shaft. The anchor can also support a secondary screw concentrically penetrating the void at the center of the anchor, in order to hang loads from a wall, with or without millwork. Predrilling of the holes can enable installation of these zinc anchors.

It is known to use screws to fasten cladding to the structural timber framing of a building. A problem is that in an earthquake event, movement of the wall can cause the screws to bend and cause non-recoverable damage to the cladding and framing. This may adversely affect the ability of a building to absorb energy sufficient to resist the destructive forces that earthquakes bring to bear. The fasteners address this problem. The fastener has a head 2, a first shaft portion (a fuse) 4 and a second shaft portion (a shank) 5. The fuse extends between the head and the shank and has less resistance to bending than the shank.

A device for compensating for tolerances between two components to be connected to one another may have a hollow cylindrical base element. The base may also have a hollow cylindrical compensating element which is in thread engagement with the base element and which can be moved out of an initial position into a compensating position by rotation relative to the base element. The device may also have a connecting element extending at least through a first cavity of the device for connecting the two components. The first cavity may have an inner contour in cross section and the connecting element may have an outer contour in cross section. The inner contour may differ from the outer contour in such a way that when the inner contour and the outer contour are oriented concentrically at least one radial overhang is present.

A fastener includes a screw structure having threads and a dowel structure. The dowel structure includes a shank extending from the screw structure in an axial direction and connected to the screw structure, and a head engaged to the shank portion and disposed distally from the screw structure. A length of the dowel structure is greater than or equal to a length of the screw structure.

A fastener includes a shank having a first end and a second end defining a length. The fastener includes a thread provided on the shank, the thread including a first region adjacent to the first end and a second region between the first region and a head at the second end, the thread includes a leading edge and a trailing edge, each edge forming an angle with a surface of the shank, the leading edge forming a non-normal angle with the surface of the shank and the trailing edge forming an angle about normal to the surface of the shank. The fastener may include an arcuate detent region in the shank between respective turns of the thread, the detent region having a length, the length decreasing from the first end toward the second end between the respective turns. The fastener may include a plurality of flutes positioned along a length of the shank.

A self-penetrating thread forming and flow drilling fastener for thick materials with a generally cylindrical partially threaded shank, a drive system at the first end of the shank and a flow drilling tip at the second end of the shank. The flow drilling tip is sized larger than the minor diameter of the threaded shank but less than the major diameter to control installation torque enabling installation into thick materials with greatly reduced risk of torsional failure resultant from a decrease in torque. The flow drilling tip and threads may be a variety of shapes or thread types based on the substrate material the fastener is installed into.

A screw has a screw head and a shank extending downwardly from the screw head. The shank has a threaded segment, a cutting segment, and a tapered segment sequentially arranged downwardly, a thread spirally surrounding an external surface of the shank from the threaded segment to the tapered segment, multiple cutting ribs arranged around the external surface of the shank on the cutting segment of the shank, and multiple chip recesses formed between the cutting ribs. Each of the cutting ribs has a rounded crest to enlarge a drill hole and to reduce a resistance formed between the cutting ribs and the workpiece during drilling. The screw can be easily screwed into the workpiece with less driving force.

A fastening nut device for fastening one substrate to another includes a cylinder, which is circumferentially larger proximate to a first end thereof, thus defining a first section and a second section of the cylinder. External threading, which is reversed, is positioned on the second section and extends from a second end of the cylinder. The cylinder can be inserted into a first hole positioned in a first substrate by counterclockwise rotation. The first section of the cylinder abuts a first face of the first substrate and the second end of the cylinder is accessible from a second face of the first substrate. A channel, which is internally threaded, extends into the cylinder from the second end. A threaded fastener, which is engaged to a second substrate, can be inserted by clockwise rotation into the channel to engage the second substrate to the second face of the first substrate.