A blind fastener is disclosed having a bolt part, a sleeve part, and a tubular insulating sheath. The bolt part is at least partially received within the sleeve part. A first end of the sheath is retained on the bolt part such that relative axial movement between the first end of the sheath and the bolt part is substantially prevented. The blind fastener is movable between: a pre-installation configuration in which the sleeve part has a first axial position relative to the bolt part and a predetermined section of the sheath is adjacent an outer surface of the sleeve part; and a post-installation configuration in which the sleeve part has a second, different axial position relative to the bolt part and the predetermined section of the sheath is adjacent an inner surface of the sleeve part.

Fluid tight blind fasteners and methods tor fastening are provided. The sleeve comprises a first sleeve end comprising a first inner surface, a second sleeve end comprising a second inner surface, and an elongate portion extending from the first sleeve end to the second sleeve end. The first inner surface and the second inner surface define a sleeve cavity extending into the sleeve from the first sleeve end toward or to the second sleeve end. The pin is configured to be at least partially received by the sleeve cavity. The pin comprises a first pin end portion configured to receive a torque, a second pin end, and a shank extending from the first pin end portion to the second pin end. Tire shank comprises threads and the threads are configured to form threads on the second inner surface of the sleeve.

A multifunction drill bit includes an outer shank including an outer lock head, an outer shank body, and an axial hole wherein spiral grooves are on the outer shank body; from a joining portion of the outer shank body and the outer lock head to the outer lock head, a threaded section, a deformable section, and a guide section are provided; each of the threaded and deformable sections include first external threads; the deformable section has outer curved grooves; a deformable concave surface is on an inner surface of the deformable section; and first internal threads are on the guide section; and an inner shank in the axial hole and including a top socket, an inner lock head, and an inner shank body. Second external threads are on an inner surface of the guide section corresponding to the first internal threads. A tip of the drill bit is replaceable.

A fastener includes a sleeve, a pin, and a visual indicator. The sleeve includes a tubular body. The pin includes a shank. At least a portion of the shank of the pin is configured to extend through the tubular body of the sleeve and to facilitate deformation of a portion of the tubular body into a bulb in response to a force applied to the tubular body of the sleeve by the shank of the pin. The visual indicator is configured to provide a visual verification of correct formation of the bulb.

A fastener includes a sleeve having a tubular portion including a first end and a second end; a head located at the first end; a deformable portion located at the second end; and a core pin having a first end and a second end. The core pin has an elongated shank portion between the first end of the core pin and the second end of the core pin including a threaded portion proximate the second end of the core pin and a head at the first end of the core pin. The sleeve is configured to receive the core pin. The fastener is configured to secure a plurality of workpieces to one another. The deformable portion is configured deflect in response to compression of the deformable portion by the head of the core pin, to form a flared connection that engages a surface of one of the plurality of workpieces.

A rivet element for setting a thread into at least one component has a head portion which can be interlockingly brought into abutment with the component and a sleeve portion which can be inserted into an opening extending through the component and can be plastically deformed. The sleeve portion is provided with an internal thread into which a traction mandrel and/or a screw element can be screwed. The sleeve portion has a protruding rib structure on the outer circumference, the rib structure having at least one first support rib and at least one second support rib which extend in the longitudinal direction of the sleeve portion and are separated from one another by a recess. After the plastic deformation of the sleeve portion, the support ribs contact one another in order to allow a direct force flow between the head portion and the sleeve portion.

A method of assembling an accumulator for a suspension damper where the method includes the steps of forming an outer shell of an accumulator, assembling a bellows assembly by connecting distal and proximal plates to opposite ends of an annular bellows wall, and inserting the bellows assembly into the outer shell. The outer shell is formed such that it includes a distal end with an end wall and an open end opposite the distal end. The bellows assembly is inserted into the open end of the outer shell with the distal plate facing the end wall of the outer shell. The method proceeds with coupling the distal plate of the bellows assembly to a stem of a gas charging port on the end wall of the outer shell at a fixed axial position using a fixation component that engages the stem of the gas charging port.

This invention relates to a pin comprising a head (22) and a threaded portion, an end of the head forming an end surface (32) on a first plane perpendicular to the main axis. The pin further comprises a handling component (30) which is an integral part of the head, a junction (50) between that head and the handling component comprising a breakneck groove (52) with a rotational shape. A section of the breakneck groove has an arc of circle portion (60), a center (68) of that circle primarily in the first plane, so that a plane containing the breakneck groove (52) surface clearly coincides with the first plane.

A rivet fastener assembly is configured to securely clamp together one or more components. The rivet fastener assembly includes a pin and a rivet body having a collar and a column extending from the collar. The rivet body further includes a collar stop configured to provide a positive locating feature for the pin once assembled.

Method and installation kit for fastening a plurality of individual objects to a supporting structure via blind rivet nuts guided through respective openings in the plurality of individual objects and in the supporting structure, in which an opening in one of the plurality of individual objects and an opening in the supporting structure to be fastened together have different sizes. Each blind rivet nut has a rivet shank and female thread with a same size female thread, and at least two of the blind rivet nuts have different outer sizes. Method includes selecting outer size of one blind rivet nuts according to the size of the opening in the one of the plurality of individual objects and the size of the opening in the supporting structure; screwing a threaded spindle into the female head of the selected blind rivet nut; and forming a closing head by pulling the threaded spindle.