The present disclosure describes an anchor device for receiving and securing a shaft thereto. The device includes an outer housing within which a jaw assembly is secured. The outer housing of the device may in turn be secured to or within a support structure such as a building component. Jaw components of the jaw assembly may be threaded. Furthermore, the jaw assembly has at least two configurations. In a first configuration, at least one jaw component is positioned away from a central shaft axis against the biasing force of a biasing member. A removable or reconfigurable holding member or stop member selectively secures the at least one jaw component in this position. A second configuration is the result of the holding member being reconfigured by the inserted shaft. The shaft triggers movement of the at least one jaw component toward the central shaft axis and into contact with the shaft.

A connecting bolt has a bolt shank and a bolt head which has a radially outwardly projecting bolt projection. The bolt head has a latching projection between the bolt shank and the bolt projection on the side opposite the bolt projection.

An expansion anchor includes an anchor bolt, an expansion sleeve as a first element where the expansion sleeve surrounds the anchor bolt, a wedge body for expanding the expansion sleeve as a second element where the wedge body is disposed on the anchor bolt, and a double coating disposed on one of the first and second elements at least in an area of contact with the other of the first and second elements. The one of the first and second elements on which the double coating is disposed is carbon steel. The double coating has a zinc flake and/or an aluminum flake top layer and a hot dip galvanized zinc, a ZnNi, or a ZnFe base layer that is covered by the zinc flake and/or the aluminum flake top layer.

An expansion anchor includes an anchor bolt, an expansion sleeve as a first element where the expansion sleeve surrounds the anchor bolt, a wedge body for expanding the expansion sleeve as a second element where the wedge body is disposed on the anchor bolt, and a double coating disposed on one of the first and second elements at least in an area of contact with the other of the first and second elements. The one of the first and second elements on which the double coating is disposed is carbon steel. The double coating has a zinc flake and/or an aluminum flake top layer and a hot dip galvanized zinc, a ZnNi, or a ZnFe base layer that is covered by the zinc flake and/or the aluminum flake top layer.

An anchor for an anchoring with, for example, a synthetic resin mortar in an anchoring hole in an anchoring substrate made, for example, of stone, concrete or masonry. In order that a displacement of the anchor in the direction of a mouth of the hole and, as a result, potential failure of the anchoring can be ascertained at an early stage, a cap as position sensor holder having an electrical counter-contact, which cap is mounted on the anchor. If the anchor becomes displaced, the counter-contact moves out of contact with the anchor, with the result that the displacement can be ascertained.

An anchor for hollow walls comprises a main body and an anchor member. The main body includes a proximal end adapted to be engaged by a rotatable tool to rotate the anchor about a longitudinal axis thereof and to cause it to gradually engage a wall, a distal end adapted to cut through the wall as the anchor is rotated, and a shank between the proximal and distal ends. The anchor member includes expandable wings and a body defining a hole, the expandable wings being in registry with respective slots defined in the shank and being displaceable between collapsed and expanded positions, A threaded fastener introduced in the anchor engages the body of the anchor member such that upon sufficient rotation of the fastener, the body of the anchor member retracts towards the proximal end thereby causing the expandable wings to extend outwardly through the slots behind the wall.

A dowel pin (1) according to a first aspect with a cylindrical body (4). The cylindrical body (4) is divided into first and second parts (2,3). The first part (2) is movably connected to the second part (3) allowing only relative transverse movement between the first and second parts (2,3). According to a second aspect, the dowel pin (1) comprises a cylindrical circumferential surface (5) and first and second longitudinal ends. The circumferential surface (5) comprises a first plurality of primary radially lifted contact areas (33) at a first distance D1 from the first longitudinal end and a second distance D2 from the second longitudinal end, with D1 being less than D2, and a second plurality of secondary lifted contact areas (35,36) at a third distance D3 from the first longitudinal end and a fourth distance D4 from the second longitudinal end, D3 being larger than D4.

A dowel pin (1) according to a first aspect with a cylindrical body (4). The cylindrical body (4) is divided into first and second parts (2,3). The first part (2) is movably connected to the second part (3) allowing only relative transverse movement between the first and second parts (2,3). According to a second aspect, the dowel pin (1) comprises a cylindrical circumferential surface (5) and first and second longitudinal ends. The circumferential surface (5) comprises a first plurality of primary radially lifted contact areas (33) at a first distance D1 from the first longitudinal end and a second distance D2 from the second longitudinal end, with D1 being less than D2, and a second plurality of secondary lifted contact areas (35,36) at a third distance D3 from the first longitudinal end and a fourth distance D4 from the second longitudinal end, D3 being larger than D4.

A cutting tool for undercutting a bore in a component includes a shaft portion and at least one tangentially and axially cutting portion. The shaft portion extends in an axial direction relative to the component and has a maximum shaft radius. The cutting portion projects radially with respect to the shaft portion further than the maximum shaft radius. Each cutting portion includes a tangentially arranged lateral cutting edge configured to form a tangentially extending groove in the component. At least one cutting portion has a front cutting edge arranged axially at a front end thereof and configured to form an axially extending groove in the component.

A connector (100) is disclosed for use in forming a joint between a first surface (400) and a second surface (410). The connector (100) comprises a housing (10). The connector also comprises a tendon (200). A portion of the tendon (200) can protrude from the housing (10) through a seal (50). The seal (50) is configured to sealably cover an open end (14) of the housing (10) such that the tendon (200) can move through the seal (50) and laterally sideways across the open end (14) together with at least a portion of the seal (50). Also disclosed is a connector (100) system for use in forming a joint, and a method of installing a connector (100) to form a joint, between a first surface (400) and a second surface (410). The connector (100) system and method comprises and makes use of the housing (10) and the tendon (200).