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| Number | Title | Issue Date |
| 8137042 | Fastener for securing first and second components together and method of using same First and second components are connected together by a fastener that includes a head and a shank having a bolt portion and a drill portion. The fastener is initially rotated relative to the first and second components such that the drill portion drills a hole throu... | 03/20/2012 |
| 8057147 | Self-drilling anchor A self-drilling anchor for use in a friable material or a semi-rigid material comprises a body having an axis, an axial bore adapted to receive a fastener, a proximal end, a drilling end, a proximal portion adjacent the proximal end having high threading having a cr... | 11/15/2011 |
| 8052363 | Self-tapping screw A self-tapping screw having a boring part and a threaded shaft for fixing a panel-type object to a preferably metallic substructure is provided. The screw is configured in such a way that it produces a through hole in the panel type object, said hole accommodating t... | 11/08/2011 |
| 7883307 | Self-drilling fastener A self-drilling fastener from which objects may be hung, for use in a friable material with or without an underlying member at the point of use or in a semi-rigid material such as a hollow core door comprises an elongated body having a threaded exterior with separat... | 02/08/2011 |
| 7862279 | Screw A screw, in particular a self-tapping screw, has a screw thread which covers up to the front end of the screw formed as a drilling tip or cutting tip. In the front area, starting with a distance from the front end of the screw, there is an opposite thread showing th... | 01/04/2011 |
| 7699569 | Self-drilling screw A self-drilling screw is in particular to a drill portion having a non-threaded first drilling section connecting with the shank and a second drilling section connecting with said first drilling section and forms two grooves therein. Moreover, the whole first drilli... | 04/20/2010 |
| 7682118 | Threaded screw fastener with multiple characteristic threads A fastener with multiple thread characteristics includes a shank and head. The shank has a penetrating tip distal most from the head. The shank includes a first, conventional thread formation formed therein adjacent the penetrating tip and a second, anti-back-out th... | 03/23/2010 |
| 7588402 | Fastener with removable element The present invention pertains to a screw with a removable tip section comprising a shank and a tip section; wherein the shank has a first threaded section consisted of an upper and a lower threaded sections and a recess defined at the surface of an end face. Furthe... | 09/15/2009 |
| 7393170 | Screw with guide wings A screw is provided that includes a head from which a shank extends. The shank has an end section at a distal end that includes a drilling portion. A conically-shaped tip potion is disposed at the distal end of the drilling portion and at least one guiding thread is... | 07/01/2008 |
| 7377019 | Method and apparatus for fastening together structural components A method and apparatus for fastening a first relatively soft structural component such as a wood panel to a second relatively hard structural component such as a steel angle iron using fasteners each having a forward self-drilling portion, a rearward, self-tapping p... | 05/27/2008 |
| 7367768 | Deck screw and installation method for composite lumber A deck screw and an installation method is intended for use with composite lumber, although it can be used with other products. The deck screw may be provided with a head and a shaft that has two regions of varying diameter. The upper region has threads that exceed ... | 05/06/2008 |
| 7338243 | Thread-cutting screw A thread-cutting screw (1) serves for being screwed into the bore-hole wall (1a) of a bore-hole (1b). It comprises a substantially cylindrical core (2) of metal which has a central longitudinal axis (4), a thread (... | 03/04/2008 |
| 7334976 | Countersunk screw The invention relates to a countersunk screw having a threaded shank and a countersunk head, which latter has a conical surface tapering at a countersinking angle in the direction of the threaded shank. The conical surface has a plurality of ribbed protrusions distr... | 02/26/2008 |
| 7290972 | Screw anchor for friable material A screw anchor includes a roughly cylindrical body (1) with a drilling portion (3) provided, at its free end, with drilling teeth (14-16), at the other end of the body, a bearing flange (5) and an external screw thread (7). ... | 11/06/2007 |
| 7273337 | Partially coated fastener assembly and method for coating A fastener assembly includes a row of fasteners having a head, a tip, and a portion of a shank coated with a polymer composition. The polymer composition includes a polymer material such as polyurethane and metal particles. The polymer composition is used to provide... | 09/25/2007 |
| 7237994 | Wall plug A wall plug for enabling fixings to be attached to a wall, the wall plug comprising an elongate body having an inner insertion end and an outer end, a through bore extending from the outer end toward the inner end, the through bore being adapted to axially receive a... | 07/03/2007 |
| 7214019 | Self-tapping screw A self-tapping screw having a boring part and a threaded shaft for fixing a panel-type object to a preferably metallic substructure is provided. The screw is configured in such a way that it produces a through hole in the panel type object, said hole accommodating t... | 05/08/2007 |
| 7214020 | Looseness resisting screw and stud hole A looseness resisting screw formed with an external thread includes a first thread area having a substantially uniform outer diameter and a second thread area extended from the first thread area toward a leading end of the screw. The second thread area has a plurali... | 05/08/2007 |
| 7182159 | Drill member for rock drilling and a method for manufacturing the drill member A drill member for percussive rock drilling is formed by forming a compound component and friction welding the compound component to the end of a drill rod. The compound component is formed by welding a core part within a shell part and machining a thread into eithe... | 02/27/2007 |
| 7160074 | Garage hook In one aspect, a holder mountable to a friable substrate may include a self-drilling anchor, a wall engaging flange having an opening for receiving a fastener, and at least one leg extending from the flange for holding an object. In another aspect, a holder may incl... | 01/09/2007 |
| 7156598 | Waffle stud for insert molded plastic members A fastener is configured for use in the manufacture of molded plastic components that will be subsequently attached to other components by the fastener. The low profile head portion of the fastener has a rounded contoured and convoluted top surface to facilitate the... | 01/02/2007 |
| 7140825 | Self tapping bolt A self tapping bolt which fastens a mounting member and a receiving member while the bolt cuts internal threads on an inner surface of a tap drill hole prepared in the receiving member. The bolt includes at least one groove formed near an end of a threaded portion o... | 11/28/2006 |
| 7090452 | Tapping screw A tapping screw includes a head, a shank and a cutting member, Said the shank has male threads, and the cutting member extends down from the shank and has a plurality of cutting grooves lengthwise formed and/or a plurality of wings also lengthwise formed; an annular... | 08/15/2006 |
| 7090453 | Screw A screw which can be more quickly screwed into a work piece and has better chip-exhausting effect. The screw has a rod body and higher thread and lower thread formed on the rod body. On a conic section of the screw, a cutting thread with another guide angle larger t... | 08/15/2006 |
| 7070376 | Self-drilling, self-anchoring fastener for concrete A fastener adapted for anchoring into a masonry structure, such as a concrete block, employs an epoxy resin system so that the fastener is both mechanically engaged and bonded to the structure. In one preferred configuration, the bead is composed of a hardener, a re... | 07/04/2006 |
| 7063491 | Reverse barb system for screws and nails The reverse barb system for screws and nails includes fasteners that are barbed to prevent backing out once driven into a workpiece or construction material, such as wood. A screw with barbed threads has several barbed thread sections. Each barbed thread section is ... | 06/20/2006 |
| 7025551 | Fastener clip for use in supplying fasteners to a fastener driving tool A clip of fasteners for use in attaching a structural panel to a metal substrate comprises a plastic strip with openings characterized by inwardly-extending ribs for gripping and supporting fasteners that comprise a forward self-drilling portion, a rearward self-tap... | 04/11/2006 |
| 7014383 | Shear wall hold-downs and wall anchor connectors A connector for securing a first building structural member to a second building structural member is provided. The connector includes a seat member with an opening for receiving an anchor bolt that secures the connector to the second building structural member. The... | 03/21/2006 |
| 7014386 | Screw connection of components to sheet material and method of effecting connection A secure connection (10) of a component to a sheet material including, an extent of thin sheet metal (20) having an attaching surface (36), a component (30) having a mating surface (37) abutting the attaching surface, an aperture (... | 03/21/2006 |
| 6945729 | Structure for fastening by screw A second material is fastened to a first material by a tapping screw having a male thread. The first material includes a hole and a concave portion around the hole. The hole has a surface in which a female thread is formed as the tapping screw is screwed in. ... | 09/20/2005 |
| 6923611 | Self-drilling fastener A self-drilling fastener for attaching wood substrates to metal substrates comprises an elongate shank defining an axis, the shank having a first end and a second end. A drilling tip having a drill point and an axial length is formed at the first end. A broad head i... | 08/02/2005 |
| 6910836 | Impact driver for rotary tools Method and apparatus for improving the efficiency of the rotating cutter of a tool by converting at least part of the rotational torque applied to the cutter to repeated rotational impact forces. ... | 06/28/2005 |
| 6907699 | Gypsum wallboard fastener A fastener for securing a 0.625 inch (⅝ inch) thick gypsum wallboard panel to a wooden building frame. The fastener includes a body having a predetermined axial length. The body includes a cupped head at one axial end of the body, having a diameter that is at leas... | 06/21/2005 |
| 6896462 | Mechanical and adhesive fastener unit A multi-part, self-drilling, self-tapping fastener with on board, internal chambered adhesive for, permanently connecting a plurality of parts at an overlaid joint thereof having access from one side. The fastener, that drills its own hole through the joint and taps... | 05/24/2005 |
| 6887023 | Screw with protruding sheets on head portion A screw with protruding sheets on a head portion comprises a thread portion; a screw tail at one end of the thread portion, a slot formed on the screw tail; a plurality of screwing sheets formed at another end of the thread portion; a plurality of recesses formed be... | 05/03/2005 |
| 6764263 | Self-threading screw provided with a point and apparatus to produce it A self-threading screw is described which includes a (basically) conical point set at the end of its shank opposite that where the head is housed, and a sunken zone set between the end of the screw shank and the conical point. In addition, an apparatus is des... | 07/20/2004 |
| 6739815 | Wood screw A wood screw is provided which can be smoothly driven in with a small driving force. Helical ribs that are the highest at the center and gradually lower toward both ends are formed on the outer periphery of the tip of a shank having threads on the outer periphery at... | 05/25/2004 |
| 6619899 | Cutting insert for fasteners A cutting insert for fasteners having a shape with an outline conforming to at least a portion of a contour of a cross-section of on end of on fastener. The insert being made of a material sufficiently strong to provide for self-tapping in application of ... | 09/16/2003 |
| 6428259 | Self-drilling screw A flat headed screw structure includes a screw body having an axle face formed with an axially extended thread, and having a tail end provided with at least one cut groove. The cut groove has a top defining a cut groove opening. The cut groove opening fur... | 08/06/2002 |
| 6402448 | Self-drilling and self-tapping screw The present invention relates to a self-drilling and thread-forming connecting element, a screw, having a threaded shank and a drilling point at the end for the chip-forming drilling of a core hole for the threaded shank. The drilling point is designed as... | 06/11/2002 |
