A metric self-tapping locking screw comprises a screw head which is connected to a thread locking body by a screw rod. The thread locking body and the self-tapping tip are provided with a screw thread on the surface. The self-tapping tip is arranged at the root of the thread locking body; the screw thread adopts the basic structure of the standard ordinary triangular thread. The flank angle back to the fastened surface is 15-20 and the flank angle of the screw thread facing the fastened surface is 30. The metric self-tapping locking screw in the Invention make the installed parts to be fastened have higher axial clamping force and static loosing moment, which solves the attenuation problem of axial clamping force and static moment of fastened parts.

An enhanced multipurpose twist tie is formed with two helically disposed wires encased in a sheath having a polygon shaped cross section, a longitudinal ridges, and detachable end caps. The wires are defined by a longitudinal length and a pair of wire termini. The wires intertwine in a helical configuration along the length of the sheath. The helical configuration compresses the wires together and also allows for a greater concentration of wire to be fit into the sheath. The sheath is defined by an outer face having a plurality of longitudinal ridges that extend along the length of the sheath to provide a grip for facilitated twisting and tying of the twist tie. An inner face has a polygon shaped cross section that restricts longitudinal and rotational slippage by the wires. The end caps detachably attach at sheath termini to form a smooth surface over wire termini.

An enhanced multipurpose twist tie is formed with two helically disposed wires encased in a sheath having a polygon shaped cross section, a longitudinal ridges, and detachable end caps. The wires are defined by a longitudinal length and a pair of wire termini. The wires intertwine in a helical configuration along the length of the sheath. The helical configuration compresses the wires together and also allows for a greater concentration of wire to be fit into the sheath. The sheath is defined by an outer face having a plurality of longitudinal ridges that extend along the length of the sheath to provide a grip for facilitated twisting and tying of the twist tie. An inner face has a polygon shaped cross section that restricts longitudinal and rotational slippage by the wires. The end caps detachably attach at sheath termini to form a smooth surface over wire termini.

An elastic cord terminating in a pair of hook devices, each hook device made from a continuous length of wire. The continuous length of wire at one end has a hook bend having a hook tip, and at the other end a cord attachment. The hook bend and the cord attachment are separated by a straight shank length of the continuous wire into which there is bent a closed finger loop. The finger loop is sized to receive therethrough at least the tip of a finger. The finger loop has a hook proximate surface that is separated longitudinally from the hook tip and toward the cord attachment by a selectable clearance distance.

An elastic cord terminating in a pair of hook devices, each hook device made from a continuous length of wire. The continuous length of wire at one end has a hook bend having a hook tip, and at the other end a cord attachment. The hook bend and the cord attachment are separated by a straight shank length of the continuous wire into which there is bent a closed finger loop. The finger loop is sized to receive therethrough at least the tip of a finger. The finger loop has a hook proximate surface that is separated longitudinally from the hook tip and toward the cord attachment by a selectable clearance distance.

A wire mesh rivet (13) is provided which is used to produce a wire mesh isolator (11) in a bore (9) of a substrate such as a heat shield (7) for a vehicle exhaust system. The rivet (13) comprises a unitary wire mesh structure (19) which has a collar (15) and a shank (17). The collar (15) has a higher density than the shank (17), e.g., the collar (15) has the density of the finished isolator (11). The rivet (13) is formed into the finished isolator (11) by compressing the shank (17) to form a second collar, while restraining the original collar (15) from substantially changing its shape. The rivet (13) can include a metal insert (23) which prevents the wire mesh of the finished isolator (11) from experiencing high levels of compression when the substrate is fastened to its supporting structure. The rivets (13) can be carried by a dispensing strip (31) and can be formed into the finished isolator (11) using forming equipment (39) whose dimensions are compatible with the limited space available with some substrates.

A wire mesh rivet (13) is provided which is used to produce a wire mesh isolator (11) in a bore (9) of a substrate such as a heat shield (7) for a vehicle exhaust system. The rivet (13) comprises a unitary wire mesh structure (19) which has a collar (15) and a shank (17). The collar (15) has a higher density than the shank (17), e.g., the collar (15) has the density of the finished isolator (11). The rivet (13) is formed into the finished isolator (11) by compressing the shank (17) to form a second collar, while restraining the original collar (15) from substantially changing its shape. The rivet (13) can include a metal insert (23) which prevents the wire mesh of the finished isolator (11) from experiencing high levels of compression when the substrate is fastened to its supporting structure. The rivets (13) can be carried by a dispensing strip (31) and can be formed into the finished isolator (11) using forming equipment (39) whose dimensions are compatible with the limited space available with some substrates.

Systems and devices for endovascular treatment of intracranial aneurysms are described. Various configurations of coiled implants may be used as stenting devices or aneurysm coils. The implants include one or more filaments wound about a longitudinal axis to form a generally tubular shape. Lateral flexibility of the implants may be manipulated by, for example, adjusting a pitch between adjacent filaments, using different materials for the filaments, employing different filament cross-sectional shapes, grouping filaments into pluralities of varying flexibilities, and nesting inner coils within outer coils.

Systems and devices for endovascular treatment of intracranial aneurysms are described. Various configurations of coiled implants may be used as stenting devices or aneurysm coils. The implants include one or more filaments wound about a longitudinal axis to form a generally tubular shape. Lateral flexibility of the implants may be manipulated by, for example, adjusting a pitch between adjacent filaments, using different materials for the filaments, employing different filament cross-sectional shapes, grouping filaments into pluralities of varying flexibilities, and nesting inner coils within outer coils.

A wire mesh rivet (13) is provided which is used to produce a wire mesh isolator (11) in a bore (9) of a substrate such as a heat shield (7) for a vehicle exhaust system. The rivet (13) comprises a unitary wire mesh structure (19) which has a collar (15) and a shank (17). The collar (15) has a higher density than the shank (17), e.g., the collar (15) has the density of the finished isolator (11). The rivet (13) is formed into the finished isolator (11) by compressing the shank (17) to form a second collar, while restraining the original collar (15) from substantially changing its shape. The rivet (13) can include a metal insert (23) which prevents the wire mesh of the finished isolator (11) from experiencing high levels of compression when the substrate is fastened to its supporting structure. The rivets (13) can be carried by a dispensing strip (31) and can be formed into the finished isolator (11) using forming equipment (39) whose dimensions are compatible with the limited space available with some substrates.