摘要:
The invention concerns a screwing element (1) for receiving the fastener head (5) of a fastener device (6), which screwing element (1) is provided with jaws (3, 4) for grasping the fastener head. The jaws (3, 4) can be inserted into and extracted from the mounting (2) in the axial direction and, in the extracted position, can be pivoted apart from each other into an open position. At their free ends, the jaws have recesses (15, 16) with adjoining gripper-like parts (17, 18) which project towards the centre axis and engage behind the fastener head (5) in a form- and/or force-locking manner.
摘要:
A large-surface plain washer (1) has an opening (5) for inserting a fastener. Engagement elements (13) that increase the engagement with a plate and/or web to be fastened are provided at the surface of the washer (1) that faces in the fastening direction. In addition, projecting spacers (17) shaped as tongues (26) that become effective when several washers (1) are stacked are provided at the lower side of the washer (1). The free end of these tongues (26) may be supported on the top side of the plain washer located directly underneath, so that the washers may be stacked without causing the engagement elements (13) of different washers (1) to engage each other. Individual washers (1) may thus be easily separated from a stack of washers (1), either by rotating or by moving the lowermost washer.
摘要:
A package for elongated parts (2) has a supporting element (1) made of a supporting strip (4) and of a tear-off covering strip (5). The supporting strip (4) has openings (6) in which the elongated parts (2) are laid, forming a row of parallel elongated parts. The package may be easily removed by tearing the covering strip (5) along perforated lines (13, 14).
摘要:
In a large-area washer (1) there is an aperture for the insertion of a fastener and a bead (16) to stiffen the washer (1). To provide better engagement with a plate and/or web to be fastened, there are engagement components (13) on the underside of the washer (1) which are pressed out of the whole material of the washer (1) and project approximately perpendicularly downwards from it. The engagement components (13) are conical or truncated cones.
摘要:
The invention concerns a screw (1) provided with a shank (3), a head (2) and a boring part (5). The shank (3) has a thread (4). The head (2) comprises a collar (6) disposed at an axial spacing (B) from the support face (12), a section (7) adjoining the collar at the shank end being provided with a tool-engagement surface (8). A tool can thus grasp the screw head (2) in axially secure manner in the region of the collar (6), this tool then simultaneously being able to transmit the necessary torque in the region of the tool-engagement surface (8).
摘要:
With an adjusting device it must be possible to fit and secure components (2), e.g. a window or door frame, in an aperture (1) in a building. The adjusting device consists of a clamping sleeve (3) with a corresponding support (15), which can be supported on an edge (4) of the building aperture (11), and a bolt (6) which can be inserted into a central drilling (5) in the clamping sleeve (3) and can be knocked or rotated into the edge (4) of the building aperture. The bolt (6) provides a hold transversely to its axial direction, an adjustment axially to the bolt (6), i.e. along it, being possible by rotating the clamping sleeve (3).
摘要:
With an adjusting device it must be possible to fit and secure components (2), e.g. a window or door frame, in an aperture (1) in a building. The adjusting device consists of a clamping sleeve (3) with a corresponding support (15), which can be supported on an edge (4) of the building aperture (11), and a bolt (6) which can be inserted into a central drilling (5) in the clamping sleeve (3) and can be knocked or rotated into the edge (4) of the building aperture. The bolt (6) provides a hold transversely to its axial direction, an adjustment axially to the bolt (6), i.e. along it, being possible by rotating the clamping sleeve (3).
摘要:
A hole-shaping and thread-forming screw (1) has a non-cutting hole-shaping end section (2) that ends in a point, a shaft section (4) provided with a thread (3) and an engagement section (5). The non-cutting hole-shaping end section (2) tapers towards its end. The whole screw is made of a stainless material, in particular its end section (2). When the screw (1) is driven in, a hole is shaped without cutting into the workpiece (7) and is then threaded by the screw (1) itself.
摘要:
A large-surface plain washer (1) has an opening (5) for inserting a fastener. Engagement elements (13) that increase the engagement with a plate and/or web to be fastened are provided at the surface of the washer (1) that faces in the fastening direction. In addition, projecting spacers (17) shaped as tongues (26) that become effective when several washers (1) are stacked are provided at the lower side of the washer (1). The free end of these tongues (26) may be supported on the top side of the plain washer located directly underneath, so that the washers may be stacked without causing the engagement elements (13) of different washers (1) to engage each other. Individual washers (1) may thus be easily separated from a stack of washers (1), either by rotating or by moving the lowermost washer.
摘要:
A hole-shaping and thread-forming screw (1) has a non-cutting hole-shaping end section (2) that ends in a point, a shaft section (4) provided with a thread (3) and an engagement section (5). The non-cutting hole-shaping end section (2) tapers towards its end. The whole screw is made of a stainless material, in particular its end section (2). When the screw (1) is driven in, a hole is shaped without cutting into the workpiece (7) and is then threaded by the screw (1) itself.