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WO/2011/006491A1 |
The invention relates to a self-drilling fastening element (10), comprising a rotationally symmetrical drilling tip (16) and a shaft (14), wherein the cross-section of the drilling tip (16) is bounded by a first radius (R2), the origin (...
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WO/2011/008152A1 |
The present invention relates to a method to obtain a time saving and ergonomic sustainable piercing, forming of threads and fixing of at least two metal sheets (2, 3) by using a hand held power tool for driving a drilling screw (1) with...
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WO/2010/148626A1 |
A self-drilling screw (10) with two or more angles is disclosed. The self-drilling screw (10) comprises a head part (11), a rod (12), a screw thread (121) formed on the rod (12) and extended axially, and a self-drilling end part (13) who...
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WO/2010/139608A1 |
The invention relates to a self-tapping screw comprising a drive part, a thread part (30), a drilling part (40), and two blades (42) freely projecting transversely to the screw axis (12) on the drilling part (40). The boundary of each bl...
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WO/2010/135016A1 |
A low energy wood screw that may be inserted quickly and using less energy than conventional screws. In various embodiments, the screw may include a countersunk head (30) having a recess (34) for accommodating a driving tool, a tapered n...
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WO/2010/119052A1 |
The invention relates to a method for manufacturing a flanged drill screw (10), which method comprises the steps of : - providing a shaft (1) with a head (2) at one end and a free tip at the opposite end of the shaft; - bulging part of t...
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WO/2010/111802A1 |
A bone screw (600) comprising a proximal head (618) with a central axis (619) and an external thread (626) having a pitch p for lockingly engaging a bone plate hole (652) and a first shaft (602) extending distally from said head (618) an...
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WO/2010/098925A1 |
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 (12) havin...
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WO/2010/093329A1 |
A thread forming screw thread fastener for fastening into a hole formed by the fastener in a work piece, the fastener comprising: a head having a drive to be engaged with a driver bit; and a shank with threads having a symmetrical thread...
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WO/2010/093330A1 |
A torque retention screw thread fastener and corresponding thread roll die to manufacture the screw thread fastener is disclosed. The torque retention thread forming screw comprises retention elements in the thread valley of the screw th...
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WO/2010/088647A1 |
A fastener may include a shaft and a head. The shaft may have first and second opposing ends and a first surface having a first diameter. The head may be attached to the first opposing end of the shaft. The head may have a second surface...
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WO/2010/084469A1 |
A self-drilling screw for fastening sheet metal roofing or other cladding to wood or metal, has a buttress thread in which the trailing flank of the thread is inclined at a greater angle to the axis of the screw shank than is the leading...
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WO/2010/083634A1 |
A self-drilling screw consists essentially of a screw head, a rod body, a plurality of screw threads which are formed on the rod body and extended along the axis direction, and a bore tail part, wherein a drilling point is extended forwa...
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WO/2010/040607A1 |
The invention relates to a self-drilling screw (1) for fastening insulating panels having cover layers arranged optionally on both sides and a corresponding method. The self-drilling screw (1) comprises a screw head (2) and a screw shank...
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WO/2010/034390A1 |
The invention relates to a screw (1) comprising a shaft (2), a tip (3), a head (4) having rotary dog means (5), a primary thread (6) and a secondary thread (7), wherein the primary thread (6) has a lesser thread pitch than the secondary ...
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WO/2010/007649A1 |
To provide a screw fastening structure for enhancing the strength of a bolt and fatigue strength by reducing the machining process without altering the shape of an associated member, and for achieving downsizing by keeping the fitting le...
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WO/2010/003901A1 |
A screw with a polygonal cross section comprises a threaded section (5) and a non-threaded section (7) that extends from the threaded section (5) to a front, rounded screw tip (8). The side line of the non-threaded section (7) runs smoot...
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WO/2009/145169A1 |
A lash adjuster in which an oil film by a squeeze effect is less likely to occur between the pressure flank of a male screw thread and the pressure flank of a female screw thread. The lash adjuster (1) is provided with a nut (14) having...
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WO/2009/121448A1 |
A thread-forming screw comprises a shank portion of a solid material and a thread portion which is joined to the shank portion and is wound from a profiled metal strip.
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WO/2009/122189A1 |
A fastening assembly for attachment of objects (1 ) to substrates (2) formed from friable materials, such as plasterboard, includes one or more longitudinal pins (8) having threaded head portions (10), which thread into one or more corre...
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WO/2009/109383A1 |
The invention proposes a blind fastening element, which is constructed similarly to a screw. The fastening element thus has a head (1), which is disposed on one end of the shaft (3) and has a contact surface, which faces toward the shaft...
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WO/2009/106483A1 |
What is described is a self-boring screw (2) comprising a bore section (6) attached to the free end of the screw shaft (4), two vanes (12) radially protruding from said bore section, the border of said vanes facing toward the bore tip (8...
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WO/2009/103935A1 |
The coated meta screw (1) of the. invention comprises a tapered tip (It) with an assorted integral screw head (4) and has a substantial length of screw heads (2), thickly coated with resilient elastic material (3). The advantages thereof...
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WO/2009/101751A1 |
Provided is a tapping screw which ensures smooth plastic flow of a partner material when the tapping screw is screwed into the partner material for tapping, and does not cause cutting or destruction of the internal structure of the partn...
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WO/2009/091857A1 |
A fastener wherein the tip portion (318) includes a structure that enables and facilitates the insertion of the fastener into both wood and concrete substrates. The tip portion (318) includes a half-cone structure (325) in which a pointe...
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WO/2009/090069A1 |
The invention relates to a connecting device (27) having a screw (1) and a carrier (7, 70), wherein the latter has a hollow space (8, 9, 28, 29) receiving the screw (1), said space being frictionally and/or positively connected to the th...
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WO/2009/090103A1 |
The invention relates to a self-cutting screw-in insert having a preferably buckled and/or curved external surface and a region which has a thread (31, 32, 33, 34) and is located on said external surface, wherein the tooth profile of sai...
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WO/2009/074813A1 |
The present invention relates to a fixing device for fixing to timber, plastics materials and friable substrates, the fixing device comprising a shank (1) having a first end and a second end, the shank comprising helically extending firs...
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WO/2009/073663A1 |
A truss screw is disclosed for use in fastening framing members together. In embodiments, the truss screw includes a raised recess section having walls extending from a top surface of the screw head. The raised recess sinks into the back...
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WO/2009/070571A1 |
A threaded screw fastener has a point (5), a shank (4) and a head (2). The point is a ballistic point. The shank comprises a linear travel area (6), preferably unthreaded, adjacent to the point and a threaded area (13) between the linear...
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WO/2009/064158A1 |
A nut for use with self-tapping screws (3) utilized in sheet metal work which comprises an elongated hexagonal-shaped body (1) with a straight through centre core (4) and has a flanged rear end (7) that is beveled (9) at the edge of the ...
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WO/2009/047486A1 |
An extraction device is provided for use when extracting a ceramic foam filter, as used for example in the production and processing of aluminium. The extraction device includes an anchor device (3) suitable for driving into the filter, ...
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WO/2009/034276A2 |
The assembly of the invention includes a rod (8) made of a plastic material and a metal nut (10) to be screwed onto the rod (8) by forming an outer threading on the rod (8) upon the first screwing operation, the nut (10) having an inner ...
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WO/2009/036452A2 |
An embodiment of the invention includes a self-drilling anchor. The self-drilling anchor includes a drill rod with a first end and a second end and a drill bit attached to the first end of the drill rod. The self-drilling anchor also inc...
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WO/2009/034078A1 |
The present invention relates to a screw of the type composed of a head (2), a threaded body (3) and a tip (4), in which the tip (4) comprises at least one section (4b) which has a stepped profile with spiral helicoidal development.
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WO/2008/141693A1 |
The invention relates to a thread-cutting concrete screw (1) and to an arrangement of such a concrete screw (1) which has been screwed into a borehole (9). The invention proposes that the concrete screw (1) be formed with two threads (6,...
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WO/2008/139555A1 |
A connecting bolt is composed of a cylindrical rod with a continuous helical rib around a circular surface thereof, and a guide member made integral with the rod in a way extending beyond a tip of the rod and having an outer diametral di...
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WO/2008/138510A1 |
The invention relates to a particle board screw having a conical screw tip with a thread. The thread extends from the screw shaft to the front end of the screw tip. In order to make it easier to screw in, and in order to reduce the split...
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WO/2008/116581A1 |
The invention relates to a self-drilling screw which is produced from hardened, alloyed carbon steel comprising an alloying additive and which has a hard tip. The hardness of the tip increases owing to the alloying additive when the scre...
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WO/2008/116582A1 |
The invention relates to a self-drilling screw which is produced from hardened, alloyed carbon steel comprising an alloying additive and which has a hard tip. The hardness of the tip increases owing to the alloying additive when the scre...
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WO/2008/116491A1 |
The invention relates to a thread forming screw (10) for screwing directly into a borehole (12). Said screw (10) is introduced into a solid anchoring base and has a screw head (14) with tool driving means, an essentially cylindrical shaf...
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WO/2008/073147A2 |
A fastener element (16) has a head section (18), a threaded shank section (17) with threads (20) at a pitch and a distal end section (22). A retention device (24) is secured to the distal end section and is engageable with a fastener rec...
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WO/2008/044751A1 |
A coating film forming agent that can form on the outer circumference of tapping screw a coating film capable of trapping any internal thread formation waste occurring at the time of driving the tapping screw into a pilot hole of work an...
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WO/2008/030507A2 |
A self drilling fastener (210) for use in a friable material with or without an underlying support member at the point of use comprises an elongated body (212) having an axis (6), a threaded exterior having a root, an enlarged head (214)...
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WO/2008/012051A1 |
The invention relates to a hole-forming and thread-forming screw comprising a head provided with a tool receiving element, in addition to a threaded shaft, and a hole-forming part tapering off in the form of a cone and ending in a trunca...
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WO/2008/012052A1 |
The invention relates to a self-tapping drill screw (1) which can be screwed into a metal sheet (20) comprising a slotted head (2) and a threaded shank (3), a slightly tapered tapping part and a friction part (5, 8, 12) being slightly co...
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WO/2008/012050A1 |
The invention relates to a hole-forming and thread-forming screw (1) for screwing into a metal plate, said screw comprising a head (2) provided with a tool-receiving element, in addition to a threaded shaft (3) and a hole-forming part (4...
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WO/2007/146200A2 |
An anchor assembly structured for use in connection with ceiling or roofing structures for hanging industrial or commercial components, such as, for example, electrical conduits, heating units, water pipes for automatic water sprinkler s...
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WO/2007/137771A1 |
Disclosed is a screw for hard wood, comprising a screw tip (3) with two cutting edges (5) that extend approximately parallel to each other and perpendicular to the longitudinal axis of the screw. The cutting angle of the cutting edges am...
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WO/2007/134681A1 |
The invention relates to a screw anchor for fixing wood components to concrete or masonry. Said anchor has a shaft (1) comprising a first threaded section (2) with a wood screw thread (6) for screwing into wood, and a second threaded sec...
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