Abstract: 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 is formed at the second end. The shank includes a threaded portion and an unthreaded portion. The threaded portion axially extends from the drilling tip towards the head and includes helical threads and has an axial length, a root diameter, and a thread diameter. The length of the threaded portion is greater than the length of the drilling tip. The unthreaded portion axially extends from the threaded portion to the head and has an axial length and a diameter. The length of the unthreaded portion is substantially greater than the length of the threaded portion and the diameter of the unthreaded portion is smaller than the thread diameter of the threaded portion.

Abstract: A nut assembly is disclosed that will ensure that the shank of a bolt that features a measurable grip length will pass through the contact plane of adjoining members. The nut assembly also allows the desired compressive force in the adjoining members to be attained by using a telescopic feature of the nut to allocate additional thread action for the bolt, enabling the bolt to be drawn into the nut further than what would be allowed by a standard nut. The adaptability of the nut assembly can eliminate the need for washers or shims to adjust the shank penetration of the bolt. The nut assembly is useful for application in which the specified thread length and the grip length of the bolt is incompatable with the abutment thickness of the adjoining members.

Abstract: A fastening assembly is provided. The fastening assembly includes provision for a stud to be positioned in a plurality of predetermined extended positions, minimizing the amount of clearance required for removing a cover from a substructure.

Abstract: A quick mounting nut (2) movable, at least partially, without being rotated, axially to a threaded bolt (1), with a springing wire clip (4) being located in a nut housing (5) with a continuous coaxial opening (6), with the wire clip (4) at least partially engaging in a bolt thread (3) and having two legs (8, 8?) which spring relative to one another, with the opening (6) having an inner cone (7) which narrows radially from an axial neutral position of the wire clip (4) and with the wire clip (4) being movable axially to a limited extent and contacting at least partially inside the inner cone (7) in its locking position.

Abstract: The screw grommet 1 comprises a flange 2 and a shank 3 extending from the flange. The shank is provided with flexible legs 7 extending from the end of the shank towards the flange and outwardly from the shank. The shank has a screw insertion hole 13 into which a tapping screw is screwed to prevent the legs from being bent radially inward towards the shank so that the screw grommet is fixed to the workpiece by means of the legs and the flange. The inner portion of the legs is provided with a threaded section turned by screwing in the tapping screw. The flange 2 is integrated with a tubular fastening torque bearing section 18 extending in the direction opposite the shank 3. The fastening torque bearing section is formed with a screw insertion hole having a diameter smaller than the outside diameter of the tapping screw so as to receive the tapping screw.

Abstract: A quick release nut (1) includes a pair of body members or segments (2, 3) having internal surfaces (4) to be placed around and engage the shaft of a bolt. The segments (2, 3) are movable between an operative position and an inoperative position in which the segments (2, 3) are spaced further apart. A pin (8) and quick release cartridge (15) on segment (2) slide within corresponding channels (12, 18) in segment (3), and a pair of ball bearings (25, 26) are released from the groove (28) by pushing the end of pin (21) axially relative to the quick release cartridge (15).

Abstract: A method of securely attaching a plate to a malleable metal rod includes forming an integral, generally annular projection on one end of the rod. An opening through the plate is configured to receive the annual projection on the rod. The annual projection is inserted through the opening in the plate and is permanently deformed radially outwardly to overlie and contact the plate at a plurality of spaced locations. The deformations in the annular projection securely attach the plate to the rod.

Abstract: A bolt is provided with a head part and a shank part. The shank part includes a first constant diameter cylindrical part, a transition part, a cylindrical connection part, and a second constant diameter cylindrical part concentrically extending from the first constant diameter cylindrical part to the second constant diameter cylindrical part. The first constant diameter cylindrical part has a screw thread with a predetermined pitch formed on the side surface thereof. The transition part has a tapered shape and has a screw thread with a predetermined pitch formed on the side surface thereof. The cylindrical connection part has a diameter smaller than that of the first constant diameter part. The second constant diameter cylindrical part has a diameter smaller than the first constant diameter part, and has a screw thread with a predetermined pitch formed on the side surface thereof. The crest part of the screw thread formed on the side surface of the transition part is truncated.

Abstract: A screw includes a rod-shaped portion, and a spiral-shaped thread winding around the rod-shaped portion. The rod-shaped portion has a straight portion, and a front end portion tapering towards a pointed front end. Several cutting trenches are formed on the rod-shaped portion for cutting bits off a workpiece with which when the screw is being screwed into the same. The tapering front end portion is provided with a notch, and cutting teeth are provided on that portion of the thread corresponding to the tapering front end portion. Cut-off bits of a workpiece can be received in the trenches as well as the cutting teeth so that the same can't have excessive resistance against the screw.

Abstract: A fastening device for pivotably fixing one end of a linear drive to a support part includes a first fastening half disposed at an end of the linear drive and a second fastening half arranged on the support part. The linear drive has an installation position and a functional position, the installed position being inclined at an angle with respect to the functional position. One of the fastening halves includes a U-shaped or L-shaped section. The U-shaped or L-shaped section includes a bolt extending transversely with respect to an axis of the linear drive. The bolt has two mutually parallel, flat outer surfaces, the outer surfaces being disposed on two opposite sides of the bolt and extending parallel to a bolt axis. The other fastening half includes a cylindrical bolt socket having a radial bolt-insertion opening in an insertion direction.

Abstract: A nut and plate washer assembly formed from a separate nut body and a separate washer body. The washer body is press fit onto a shank of the nut body, with a head of the nut body embedded in a recess of the washer body. The washer body and nut body can be made from dissimilar materials.

Abstract: An improved female splined member includes a female tubular member having an inner surface provided with a plurality of longitudinally extending grooves that are sized and spaced in accordance with a desired number and position of splines to be formed. A plurality of elongate rods is disposed in respective longitudinally extending grooves formed in the inner surface of the female tubular member. A quantity of positioning material is provided within spaces provided between the elongate rods and the longitudinally extending grooves. The positioning material is hardened to support the elongate rods in the longitudinally extending grooves to define a plurality of inwardly extending splines in the female splined member. An improved method for manufacturing a female splined member includes the initial step of providing a female tubular member having an inner surface provided with a plurality of circumferentially spaced, longitudinally extending grooves.

Abstract: A spring-loaded, locking press pin assembly with a pin which extends axially through a guide sleeve and is connected at its upper end with a button, whereby a covered locking device is formed between the button and the guide sleeve. The locking device includes a ring recess, which is located in the button and is downwardly open in the axial direction, into which the guide sleeve engages in a spring-loaded manner with at least two locking teeth, opposite to each other and forming an axial slot between each other. The retainer area for the pressure spring is located in a downwardly open borehole in the guide sleeve and this borehole is located in an axial direction below the locking device.

Abstract: An expansion bolt. In a preferred embodiment, the expansion bolt includes a center chock having either a convex or a concave outer ramping surface and two outer chocks disposed about the center chock having complementarily concave or convex outer ramping surfaces.

Abstract: A cable release anchor having an improved breakaway post design with a cable release feature. The cable release anchor includes upper and lower anchor portions that are readily separable from one another during an impact. A bearing plate is retained within the end of each of the upper and lower anchor portions, and each bearing plate has a bearing surface that is oriented at an acute angle with the vertical when installed in the ground. Each of these bearing plates contains a U-shaped cutout. When the upper and lower anchor portions are joined, the cutouts form an opening through which an end of the tension cable is disposed. An impact to the upper anchor portion readily releases the upper post section from the lower post section and frees the cable. The cable release anchor provides positive anchorage to react to tensile loads on a rail member to redirect a vehicle impacting along the length of the terminal or guardrail.

Abstract: A fence made of foaming agent is disclosed. A bottom of the fence has at least one inserting portion, and the inserting portion is inserted to a seat. The seat is inserted to an inserting hole for being inserted by the inserting portion.

Abstract: Described herein are fastener inserts formed from a titanium alloy which reduce corrosion in a fastener assembly. In addition to reduced corrosion, particularly galvanic corrosion, the fastener insert is lightweight and provides improved strength to weight ratios as compared to stainless steel fastener inserts.

Abstract: A releasable clampband apparatus and an associated method gently alter clampband tension, such that clampband tension may be reduced after the need for high clampband tension is no longer present, but before clampband separation. Thus, equipment or electronics contained in elements joined by the clampband are protected from excessive shock upon clampband separation. The releaseable clampband apparatus includes a discontinuous clampband having at least one opening. A connector is fixed to one side of the clampband opening and extends across the opening. A housing is fixed to the other side of the clampband opening and has a cavity surrounding at least a portion of the connector. A moveable positioning assembly is at least partially disposed within the housing cavity and is connected to the connector such that movement of the assembly with respect to the housing alters the clampband tension by varying the size of the opening.

Abstract: A fastening system is provided that includes a fastener having a pin member with a lock groove and crest geometry that is optimized to receive swaged material from collars of materials of different strengths for securing workpieces for different load applications. The lock grooves have the longest width required for collars of lower strength for one application or greater strength for a second application and the crests have the longest width required for collars of greater strength for the second application whereby satisfactory clamp and tensile loads and resistance to failure will result when the lock grooves are filled with collar materials of different strengths. The lock groove and crest geometry is of a uniform construction for the plurality of applications with pin members of a common diameter.

Abstract: A spreader dowel includes a sleeve having an area formed with an internal first thread for engagement by a screw. The sleeve has opposite ends and includes first longitude slots on one end for defining an expansion zone. A spreader piece formed with a conical portion is connected to the screw and spreads the expansion zone, when the screw is inserted. The sleeve has second longitude slots which extend inwardly from an end face on the other end. In the region of the second longitude slots toward the end face, the sleeve has a zone which is formed with an internal second thread defined by a thread diameter which is smaller than a thread diameter of the screw while having a same pitch as the thread diameter of the screw, or is threadless with a clear diameter which is smaller than an outer diameter of the screw.