A fastener adapted to be mounted through an aperture of a wall has an inner stud, a spiral structure, and an outer fastener. The inner stud is sized to fit through the aperture of the wall and hold the spiral structure. The outer fastener engages the inner stud to compress the spiral structure into a washer-like structure, which supports the fastener on the wall.

A fastener adapted to be mounted through an aperture of a wall has an inner stud, a spiral structure, and an outer fastener. The inner stud is sized to fit through the aperture of the wall and hold the spiral structure. The outer fastener engages the inner stud to compress the spiral structure into a washer-like structure, which supports the fastener on the wall.

The invention relates to a fastening device for fastening at least one mounting element to a threaded bolt, including a nut having a threaded bore and a clamping element that interacts with the nut and has an opening. The nut has a conical supporting region on the outside. In the mounted state, the nut engages at least partly in the opening of the clamping element and rests on a complimentary inner cone which the clamping element has. The nut has at least one slot which interrupts the nut wall over a sub region of the axial extent of the latter. The at least one slot opens at the axial end of the nut which is located closer to the larger diameter than to the smaller diameter of the conical supporting region is designated as the top end. The clamping element can be screwed into a mounting element.

An interlocking drive plate for an anilox roll which incorporates a dowel pin with a bushing that is able to move slightly and rotate. The interlocking drive disc is similar in structure to the current structure of a drive disc for the Mark Andy P-Series printing presses. However, the stationary dowel pin has been replaced with a modified dowel pin which includes a bushing providing slight movement and rotation. The modified dowel pin, with slight movement and rotation, reduces the shear forces on the pin which in turn reduces the wear on the pin when rotated by a servomotor. This reduction in wear will cause the interlocking drive disc to last longer than traditional drive discs without the need for repair or replacement.

An interlocking drive plate for an anilox roll which incorporates a dowel pin with a bushing that is able to move slightly and rotate. The interlocking drive disc is similar in structure to the current structure of a drive disc for the Mark Andy P-Series printing presses. However, the stationary dowel pin has been replaced with a modified dowel pin which includes a bushing providing slight movement and rotation. The modified dowel pin, with slight movement and rotation, reduces the shear forces on the pin which in turn reduces the wear on the pin when rotated by a servomotor. This reduction in wear will cause the interlocking drive disc to last longer than traditional drive discs without the need for repair or replacement.

The present invention relates to a mechanism and method for rigidly mounting a handrail to the interior of an elevator cab. The mechanism includes a threaded rod having a pivoting member at one end for passing through an existing or new opening in an elevator cab wall. Upon passing through the wall, the pivoting member can rotate to provide a brace against the exterior of the elevator cab wall. A base portion having a number of grooves on its exterior surface and threads on its interior surface threads onto the rod to create a solid connection to the cab's wall. The handrail, having a base portion receiver, is then securely attached to the cab by sliding over it the sleeve and having set screw(s) inserted through the handrail's receiver at points adjacent to the corresponding grooves in the sleeve.

An undercut anchor 2; 30, which facilitates the formation of a corresponding undercut in a blind hole for receiving the undercut anchor 2; 30, is formed to independently cut or form this undercut by rotating and spreading the undercut anchor 2; 30. Furthermore, a setting tool for forming this undercut at the bottom of the blind hole in the joining partner is proposed. Finally, a method of forming an undercut at the bottom of a blind hole using the setting tool is disclosed.

A fastening system having differentiable components includes a first bushing with a first mating feature to be inserted within a first receiver. A first fuse pin with a second mating figure and being configured to shear upon the application of a first predetermined load is configured to be inserted into the first receiver and mate with the first mating feature of the first bushing. The first and second mating features correspond and permit the insertion of the first fuse pin into the first bushing within the first receiver to selectively connect components. The first bushing may prevent the complete insertion of a second fuse pin having a third mating feature into the first receiver. A second bushing having a fourth mating feature may permit the complete insertion of the second fuse pin into the second bushing positioned within a second receiver.

A fastening system having differentiable components includes a first bushing with a first mating feature to be inserted within a first receiver. A first fuse pin with a second mating figure and being configured to shear upon the application of a first predetermined load is configured to be inserted into the first receiver and mate with the first mating feature of the first bushing. The first and second mating features correspond and permit the insertion of the first fuse pin into the first bushing within the first receiver to selectively connect components. The first bushing may prevent the complete insertion of a second fuse pin having a third mating feature into the first receiver. A second bushing having a fourth mating feature may permit the complete insertion of the second fuse pin into the second bushing positioned within a second receiver.

A fastening system having differentiable components includes a first fuse pin with a first mating figure and being configured to shear upon the application of a first predetermined load and a first receiver with a second mating feature. The first and second mating features correspond and permit the insertion of the first fuse pin into the first receiver to selectively connect components. The system may include a second fuse pin having a third mating feature and being configured to shear upon the application of a second predetermined load, which may differ from the first predetermined load. The second fuse pin having a third mating feature that prevents the insertion of the second fuse pin into the first receiver. The first fuse pin may be configured to connect together components of a first aircraft and the second fuse pin may be configured to connect together components of a different aircraft.