The present invention discloses a guide pin, which comprises a base support layer (1) and a protective layer (2). The base support layer (1) is a rod-shaped structure. The protective layer (2) tightly wraps the surface of the base support layer (1). A manufacturing method for the guide pin made of various materials is also disclosed. The guide pin manufactured by the method of the present invention is not prone to bending or deformation and has good corrosion resistance and acid/alkaline resistance properties; it is wear resistant and has of extended service life; it is easy to be processed and is low in cost.

An anchor for wallboard installation includes an anchor body elongated along an axis, the anchor body including a driving end, a wall boring end and an internal bore running from the driving end to an internal end short of a distal tip of the wall boring end. The anchor body includes a first frusto-conical body portion, a second frusto-conical body portion running from the first frusto-conical body portion to an annular groove and an end body portion running from the annular groove toward the distal tip.

A fixing for attaching an object to a panel, the fixing comprising: a head member (11) configured to be located on a first side of the panel; a back member (13) configured to be located on a second side of the panel and to receive at least part of an attachment element; and a neck member (12) connecting the head member (11) and the back member (13), wherein the head member (11), neck member (12), and back member (13) are rigidly coupled together and a part of the back member extends radially outwardly with respect to the head member, such that the back member is locatable on the second side of the panel by manipulation of the rigidly coupled head member, neck member and back member.

An oval-shaped T-nut that is received within an oval receiver machined into the upholstered panel to be secured to a chair frame is provided. The oval shape of the T-nut prevents the oval-shaped T-nut from rotating when a screw is driven into the T-nut. Further, this eliminates the necessity of stapling the traditional plastic T-nut to the chair panel, thus saving time and money associated with the manufacture of an upholstered metal frame chair. In addition to the oval-shaped T-nut described herein, a novel U-shaped screw catch is also provided which cooperates with a barbed nylon or plastic push rivet to secure the upholstered chair panels to one another. Further, a method for connecting upholstered seat back panels to the tabs positioned on the back frame of a chair, utilizing the T-nut and the screw catch is disclosed.

A fastening assembly includes a mounting cylinder frame, a movable part and a turnover part, the mounting cylinder frame is provided with a first vertical beam and a transmission rod, the mounting cylinder is provided with a butting block at the top of the first vertical beam, the transmission rod passes through the butting block, the side wall of the first vertical beam is provided with a bulge, the movable part is connected with the transmission rod, and the turnover part is arranged on the first vertical beam and rotationally connected with the movable part. The turnover part is butted with the bulge, the turnover part is located between the butting block and the movable part, and has a vertical state and a horizontal state. The transmission rod is used to drive the turnover part to switch between the horizontal state or the vertical state.

An oval-shaped T-nut that is received within an oval receiver machined into the upholstered panel to be secured to a chair frame is provided. The oval shape of the T-nut prevents the oval-shaped T-nut from rotating when a screw is driven into the T-nut. Further, this eliminates the necessity of stapling the traditional plastic T-nut to the chair panel, thus reducing materials and eliminating a manufacturing step, thus saving time and money associated with the manufacture of an upholstered metal frame chair. In addition to the oval-shaped T-nut described herein, a novel U-shaped screw catch is also provided which cooperates with a barbed nylon or plastic push rivet to secure the upholstered chair panels to one another.

The present screw anchor advantageously has two fins radially extending from the body of the screw anchor, where the fins additionally extend above the top end of the body. This unique fin design permits the user to drive the screw anchor into the worn screw hole within a wood substrate so that the screw anchor is substantially flush or recessed within the worn screw hole. When the fins are aligned with the grain of the wood, the fins split the wood at the grain and prevent rotation of the screw anchor. Because the screw anchor is flush or recessed, the anchor does not interfere with the installation of hardware overtop the anchor, such as a hinge. Furthermore, the original screw, such as in the case of a door hinge, can be reused to create an invisible repair.

A mounting system employs an X-shaped adapter for mounting a device to a square receiver. Many different devices can include an X-shaped adapter to allow the device to be mounted to any appropriately sized square receiver. A square receiver can be positioned and secured in many different locations to facilitate the use of a variety of devices in such locations. The X-shaped adapter is configured to insert within the opening of the square receiver when the X is aligned with the corners of the opening. Once inserted, the X-shape prevents the device from rotating.

A screw insert configured for repairing a stripped screw hole. The screw insert comprises three elongated prongs each having a distal end and a proximal end. The three elongated prongs are hingedly connected to each other only at the proximal ends thereof. The three elongated prongs are equiangularly spaced from each other so that longitudinal axes thereof are spaced apart. Each of the prongs has an outer surface and an inner surface. The screw insert is transformable from an open configuration to a folded configuration. The longitudinal axes of the prongs are coplanar in the open configuration. The longitudinal axes of the prongs define an acute angle therebetween in the folded configuration.