A threaded sleeve for assembling with heat input in a component manufactured by FDM process is provided. The threaded sleeve includes a groove along its longitudinal axis. Further, the outwardly facing surface of the threaded sleeve includes a self-tapping thread which is divided into two sections along the threaded sleeve's longitudinal axis. The first section includes a constant pitch diameter and the second area comprises a pitch diameter decreasing along its longitudinal axis. The inwardly facing surface of the threaded sleeve comprises a metric thread. Furthermore, a kit, a system and a method for assembling with heat input the above-mentioned threaded sleeve in a component manufactured by FDM process is provided.

Disclosed is an improved fastening system that leverages magnetism to assist in the installation of a fastener. The system may include an axially magnetized insert adapted to be secured within a bore in a surrounding material. The insert may be composed of a material having a magnetic permeability that is higher than that of the surrounding material. The insert may include a helical threaded interior surface adapted to receive a ferromagnetic screw. When placed in proximity of the insert, the tip of the screw is pulled into and held in alignment with the insert by the magnetic field emanating from the magnet. The fastening system may be particularly beneficial in environments where positioning or holding the screw in the starting position is difficult.

Inexperienced users of conventional self-drilling drywall anchors may apply too much torque to its screw drive, even after the anchor has become fully bedded down in the drywall, under the mistaken impression that applying a greater torque will improve security of the anchor within the drywall. However, continuing to rotate the anchor after it has been fully inserted into the dry wall continues to rotate the anchor within the drywall and gouges out drywall material from around the anchor. Such gouging causes a cavity to form around the anchor, reducing its security within the wall. The present invention provides a self-drilling drywall anchor having a screw drive 16 that comprises a clutch configured to limit an amount of torque transmitted to the shank 5 by a tool engaged with the screw drive 16. In this way, a user may drive the anchor into a drywall, but over-tightening is prevented as the clutch limits the amount of torque transmitted to the shank 5, thereby preventing the external threads 7 on the shank from gouging out drywall material adjacent to the anchor and reducing the anchor's security within the drywall.

The invention relates to a device for compensating tolerances between a first component and a second component to be screwed to it by means of a connecting screw, comprising a base element and a compensation element that is in thread engagement with the base element, the thread engagement being non-self-locking in such a way that the compensation element moves out of the base element when the connecting screw exerts an axial force on the compensation element.

The invention relates to a device for compensating tolerances between a first component and a second component to be screwed to it by means of a connecting screw, comprising a base element and a compensation element that is in thread engagement with the base element, the thread engagement being non-self-locking in such a way that the compensation element moves out of the base element when the connecting screw exerts an axial force on the compensation element.

A metallic holding element for absorbing or introducing a torque in a plastic housing is presented, wherein the holding element in the holding area features a profile with three, four, or five main corners, which are connected to each other via straight or convex edges, preferably the edges are generally curved in a convex manner respectively through one or more obtuse-angled intermediate corners.

One or more techniques and/or systems are disclosed for a replacement insert, which may be used for replacing stripped threads and providing the new smooth surface for a washer/gasket on component, such as for a vehicle. The insert has an inner and outer threaded surface, and the inner threads are merely partially formed in the inner cavity of the insert, leaving an unthreaded surface proximate the end of the insert. The insert has a shoulder with a greater diameter than the hole into which it is inserted, to stop further insertion. The insert can be threaded into the hole using the thread chaser bit screwed insert, and continued rotation of the chaser past a thread stop can form remaining threads, allowing for application of torque to install the insert in the component.

Insert designed to be fitted on a support, including a body extending along a longitudinal axis and a base including at least one plate extending along a base plane, at least one through hole oriented along an orientation axis perpendicular to the base plane being formed in said at least one plate, at least one protuberance being formed on a first surface of said at least one plate and forming a hollow on a second surface of said at least one plate.

A locking fastener includes a thermoplastic fastener body, a locking coil, and a support collar. The fastener body defines a cylindrical cavity and a radially extending slot communicating with the cavity. The support collar has an arcuate portion and first and second tabs extending radially outward from the arcuate portion. The support collar is disposed within the fastener body with the arcuate portion adjacent the cavity wall and the tabs extending into the slot. The locking coil has a helical portion and first and second tangs extending radially outward from the helical portion. The helical portion of the locking coil is positioned within the support collar, and the first and second tangs extend into the slot and between the first and second tabs.

A locking fastener includes a thermoplastic fastener body, a locking coil, and a support collar. The fastener body defines a cylindrical cavity and a radially extending slot communicating with the cavity. The support collar has an arcuate portion and first and second tabs extending radially outward from the arcuate portion. The support collar is disposed within the fastener body with the arcuate portion adjacent the cavity wall and the tabs extending into the slot. The locking coil has a helical portion and first and second tangs extending radially outward from the helical portion. The helical portion of the locking coil is positioned within the support collar, and the first and second tangs extend into the slot and between the first and second tabs.