A fastening system including a first sintered powder metal fastening component and a second metal fastening component. The first sintered powder metal fastening component has a first porous surface and a one-part adhesive in the first porous surface. The second metal fastening component has a second surface. The second surface is configured to frictionally engage with the first porous surface.

A coupling bolt or pin, in particular a ball pin, with a coupling head, such as a ball head, and a thread shaft. The thread shaft comprises a thread in a longitudinal portion of the thread shaft, which extends parallel to a central longitudinal axis of the thread shaft. Within the longitudinal portion of the thread a thread inhibition is provided by means of which a frictional connection between the thread and a counter thread engaging therein and being present at a radial inner wall of a thread opening is increasable. A disc-shaped support structure is provided between the coupling pin and the thread, a radial extension of which is adaptable to a diameter of the thread opening so that the coupling pin is supportable against a lateral load with respect to the axis of the coupling pin within the thread opening.

A bolt includes a threaded shaft and a bolt head. The threaded shaft has a first end, a second opposing end, and an external thread. The first end includes a flared protrusion and the external thread is wrapped about the shaft and extends from the second opposing end to the flared protrusion. The bolt head includes an interior threaded bore for threadingly engaging the external thread of the threaded shaft, a front surface, and an opposing back surface having a recess configured to receive at least a portion of the flared protrusion of the threaded shaft therein.

The invention relates to a sealing material (1) having a first layer (2) which is formed by a textile fabric made of synthetic fibers (22) and has a thickness d1, and a second layer (3) which is formed by an adhesive material and has a thickness d2, wherein the two layers (2, 3) of the sealing material (1) penetrate one another when a force is applied perpendicularly to the extension of the layers (2, 3), such that a sealing layer (1′) is formed having a thickness D where 0.9.Math.d1≤D≤1.1.Math.d1.

Embodiments of systems and methods for adhering hardware to a substrate, wherein the method comprises coupling the hardware with a rigid tube or an elastomeric tube, applying adhesive onto a bonding surface of the hardware, inserting the rigid tube or the elastomeric tube through an aperture of the substrate until a surface of the substrate contacts the bonding surface having adhesive applied thereon, and adhering the hardware to the substrate by applying localized heat through a heating component disposed within the rigid tube or the elastomeric tube.

A hung structure is provided. The hung structure is adapted to be hung on a fastener. The hung structure includes a hung member and a restriction member. The hung member includes an opening, wherein the opening includes an insertion area and a first slot area, the fastener is adapted to pass through the opening via the insertion area, the fastener is adapted to slide from the insertion area to the first slot area, and when the fastener is in the first slot area, the hung member is supported by the fastener. The restriction member includes an affixed section, an elastic unit and a restriction section. The affixed section is affixed to the hung member. The elastic unit is connected to the affixed section. The restriction section is connected to the elastic unit, wherein the restriction section corresponds to the insertion area.

An optimized thread profile (140) for joining composite materials is presented. This thread profile (140) maintains a certain material strength when used as part of a composite threaded joint (101). The thread profile (140) comprises a repeating pattern of four components: a crest region (150), a first flank (162), a root region (170) and a second flank (164). The thread profile (140) is symmetrical, that is, the dimensions of the four components do not change throughout the length of the thread profile. The crest (152) has a flat profile and the root (172) has a rounded profile. When a shaft (120) is affixed to a joining shaft (110) using this optimized thread profile (140), the flat profiles of the crest (152) of the shaft (120) and corresponding rounded profiles of the root (172) of the joining shaft (110) create a gap to accommodate a substance such as an adhesive or a lubricant. Similarly, the flat profiles of the crest (152) of the joining shaft (110) and corresponding rounded profiles of the root (172) of the shaft (120) create a gap to accommodate a substance.

A method for rating a screw which is disposed in a hole in a concrete or masonry substrate includes applying a screw torque to the screw, measuring motion data of the screw in response to the applied screw torque, and rating the screw as either satisfactory or unsatisfactory on a basis of the measured motion data.

A hung structure is provided. The hung structure is adapted to be hung on a fastener. The hung structure includes a hung member and a restriction member. The hung member includes an opening, wherein the opening includes an insertion area and a first slot area, the fastener is adapted to pass through the opening via the insertion area, the fastener is adapted to slide from the insertion area to the first slot area, and when the fastener is in the first slot area, the hung member is supported by the fastener. The restriction member includes an affixed section, an elastic unit and a restriction section. The affixed section is affixed to the hung member. The elastic unit is connected to the affixed section. The restriction section is connected to the elastic unit, wherein the restriction section corresponds to the insertion area.

A bolted joint for coupling two components that undergo thermal expansion and contraction includes a bolt having a head and a stem, the bolt configured to provide a clamping force between the two components. A first washer having a thermal resistant, low friction coating is configured to be disposed between one of the two components and the bolt head to enable the one component to slide relative to the bolt during the thermal expansion and contraction, while maintaining the clamping force, to facilitate preventing bending or shearing of the bolt.