TW201901050A - Stay tight threaded fasteners - Google Patents

Abstract

A male fastener, female fastener, a wedge, and a space adapted to receive the wedge, which are configured to secure the female fastener to the male fastener, and to prevent unwanted loosening of the female fastener from the male fastener. The male fastener includes a shaft and the female fastener includes an aperture. The male or female fastener includes a plurality of protruding elements that extend outwardly from an external surface of the shaft or the external surface of the aperture. The wedge (which is affixed to the corresponding male or female fastener) is adapted to be inserted into a space located between a set of protruding elements (or into multiple spaces located between multiple protruding elements), which prevents the female fastener from rotating around the shaft in a direction that would loosen the female fastener from the male fastener.

Description

Threaded fasteners that remain tight

The present invention relates to male and female threaded fasteners that include various styles of bolts, machine screws, and nuts. More particularly, the present invention relates to male and female threaded fasteners for joining different articles together that are configured to avoid unnecessary loosening of the male and female threaded fasteners from one another.

Male and female threaded fasteners, such as bolts and machine screws (and corresponding nuts), are used today in a variety of applications. Male and female threaded fasteners are most commonly used to attach and secure two or more components or items. together. In fact, male and female threaded fasteners have been used in residential and commercial buildings, complex mechanical structures, and many other industries for many years. A common and long-standing problem with male and female threaded fasteners is that the female fastener (eg, a nut) will create unnecessary along the axis of a corresponding male fastener (eg, a screw or bolt) (sometimes It is dangerous) loose, the aforementioned looseness may be caused by vibration, lubrication, thermal expansion and contraction, and other external forces. For example, when a screw/bolt and nut combination is incorporated into a complex machine that periodically vibrates, this vibration will typically cause the nut (over time) to loosen along the thread axis of the screw/bolt. Traveling (along the direction in which the nut and screw/bolt combination will eventually loosen), so that the two components that are joined together by this screw/bolt and nut combination are loosened.

Therefore, in the market, male and female threaded fasteners continue to be required to be improved. More specifically, male and female threaded fasteners are continually being modified to resist unwanted loosening over time. As described below, the invention described herein addresses this need on the market (and others).

In accordance with certain aspects of the present invention, male and female threaded fasteners, such as screws, bolts, nuts, etc., are provided that are combined with or adapted for use with a particular wedge member. The male fastener is adapted to be secured and attached to the female fastener to avoid unnecessarily loosening of the female fastener from the male fastener, such as due to vibration or other forces resulting from passage of time. As used herein, the terms "screw" and "bolt" are used interchangeably and are generally to be interpreted to mean a male threaded fastener, such as a male threaded member that is adapted to be received by a female threaded fastener (eg, a nut). And connected to the female threaded fasteners. More specifically, male fasteners (eg, screws and bolts) will include a rigid shaft that is configured to pass through a hole in the middle of a female fastener (eg, a nut) and rotate therein. As used herein, the term "mother fastener" refers to a member having a threaded bore configured to receive a corresponding threaded shaft of a male fastener. As used herein, a female fastener can comprise a separate object, such as a nut, or the female fastener (with its threaded bore) can be bonded to a larger object and form part of a larger object. For example, a so-called female fastener may be comprised of a threaded bore located in the housing that is configured to receive a male fastener rather than a separate component of the shaft of the male fastener (in this example, for example, a nut member) ).

In the broadest sense, the shaft of the male fastener provided by the present invention will include one or more spaces adapted to receive a corresponding wedge located within the bore of the female fastener or adjacent one of the holes of the female fastener. The thread of the female fastener (located within the bore of the female fastener) will be configured to engage the passage of the male fastener such that the female fastener can be caused by the female fastener toward the top of the male fastener and Rotate along the axis of the male fastener (ie, to "fasten" the female fastener). Conversely, the threads of the male fastener (on the outer surface of the shaft) will be configured to engage the passage of the female fastener such that the female fastener can be oriented toward the male fastener The top is rotated and travels along the axis of the male fastener (ie, to "fasten" the female fastener). After the female fastener is sufficiently "fastened", the wedge (located in or near the bore of the female fastener) can be placed in the space (or other area) of the male fastener's shaft (in In some cases, at or near the bottom surface of the female fastener, such that the wedge prevents the female fastener from passing through the axis along the axis of the male fastener and away from the male fastener The direction of travel of the top rotates around the axis and "loose".

According to a particular embodiment, the shaft of the male fastener may comprise a series of protruding elements. In such an embodiment, the protruding elements provided by the present invention are preferably arranged at equal intervals. The equally spaced apart protruding elements form a void (or space) between each of the protruding elements. The space thus provided provided by the present invention is adapted to receive the wedge member. In this embodiment, as also described in the above embodiments, the present invention further provides that the wedge member is configured to prevent the female fastener from surrounding the female fastener in a manner to move toward the bottom of the male fastener. The shaft is rotated (ie, the wedge is configured to prevent the female fastener from rotating in a counterclockwise direction, otherwise the female fastener will be released).

Although the present description is directed to a female fastener equipped with a wedge that is configured to be disposed in one or more spaces on a shaft of a male fastener, one of ordinary skill in the art will appreciate that In an alternative embodiment, the wedge member can be located on the male fastener and configured to be disposed in one or more spaces within the bore of a female fastener. For example, in such an embodiment, the aperture of the female fastener provided by the present invention will include one or more spaces adapted to receive a corresponding wedge, the wedge being located on the shaft of a male fastener as described herein. on. The male fastener (on the shaft portion of the male fastener) will be configured to engage a channel in the bore of the female fastener such that the male fastener can cause the female fastener to follow the male The shaft of the firmware travels and rotates toward the top of the male fastener (ie, to "fasten" the female fastener). After the female fastener is sufficiently "fastened", the wedge (on the shaft of the male fastener) may be disposed in the inner space (or other area) of the female fastener, and the wedge is shaped The piece prevents the female fastener from "loose" by rotating about the axis of the male fastener and causing the female fastener to rotate about the axis away from the top of the male fastener.

According to another aspect of the invention, a male and female threaded fastener set (e.g., a screw and a nut) as described above is included. In such an embodiment, the wedge can be bonded to the female (or male) fastener or the wedge can be present as a separate component.

According to yet another aspect of the invention, a male and female threaded fastener set (such as a screw and nut) and a wedge are included as described herein. Similar to other embodiments of the invention, the wedge may be incorporated into the female (or male) fastener or the wedge may be present as a separate component.

The above and additional features of the present invention are further described in the embodiments contained herein.

Several preferred embodiments of the invention are described in detail below. These examples are provided for illustrative purposes only and thus should not unduly limit the scope of the invention. In fact, many variations and modifications of the present invention will be apparent to those skilled in the <RTIgt; Many variations of the invention.

Referring now to Figures 1-7, in accordance with a particularly preferred embodiment of the present invention, male and female threaded fasteners are provided, such as screws, bolts, nuts, etc., which are associated with or adapted to a particular wedge member. The wedge members are used together. Female fasteners (eg, nuts) are adapted to prevent such female fasteners from being secured to the male fasteners (eg, screws/bolts) from the male fasteners in an unnecessarily and potentially dangerous manner, for example, The result of vibration or other forces that occur over time. The male fasteners provided by the present invention are adapted to be received by a female fastener and attached to a female fastener. More specifically, the male fastener will include a rigid (and in some cases cylindrical) shaft 10 that is configured to be placed in a hole in the middle of a female fastener (eg, a nut) And rotating within the bore such that the passage of the male fastener on the shaft 10 (described below) is allowed to receive and engage corresponding threads in the bore of the female fastener (or vice versa, for example, allowing male fasteners The threads on the shaft 10 engage corresponding passages in the bore of the female fastener).

In a broad definition, in accordance with certain preferred embodiments, the present invention includes male fasteners (eg, screws/bolts) and female fasteners (eg, nuts) as described herein, and can be used to lock the female fasteners A wedge 22 in place prevents the female fastener (e.g., nut) from "looking" and rotating in a counterclockwise direction about the axis of the male fastener. In such an embodiment, the wedge 22 can be configured to be present in or near the bottom surface of a female fastener (eg, a nut), or as described below, the wedge 22 can be mated with a female fastener (nut) The outer surface of the hole is integrally formed. The wedge 22 can be configured to be inserted into one or more spaces 20 on the outer surface of the shaft 10 (as further described below). Importantly, the wedge 22 will be configured to allow the female fastener (nut) to allow the female fastener (nut) to travel along the shaft 10 of the male fastener and toward the top of the male fastener (screw/bolt) ( For example: rotating in a clockwise direction to "fasten" the female fastener (nut) to the male fastener (screw/bolt), and the wedge 22 is configured to prevent the female fastener (nut) from allowing the female The fastener (nut) rotates along the axis 10 of the male fastener and away from the top of the male fastener (eg, in a counterclockwise direction) which would otherwise "release" the female fastener (nut).

According to a particular embodiment of the invention, the shaft 10 of the male fastener can include a plurality of protruding elements 12 that extend outwardly from the outer surface 14 of the shaft 10. The protruding elements 12 provided by the present invention radially spiral around the circumference of the shaft 10. Moreover, in some embodiments, the array of protruding elements 12 are positioned in a manner that forms a channel 40 between the array of protruding elements 12. The channel 40 thus formed travels radially along the circumference of the shaft 10 and is wound (in a spiral manner) on the circumference of the shaft 10, starting from a top 16 or top 16 of the male fastener and terminating in the male A bottom 18 or bottom 18 of the fastener is adjacent. The passage 40 provided by the present invention is adapted to receive a corresponding thread (or set of threads) located within the bore of the female fastener. As such, the threads of the female fastener can engage the channel 40 such that the female fastener can cause the female fastener to rotate (clockwise) along the axis 10 of the male fastener and toward the top 16 of the male fastener (ie, To "fasten" the female fastener). Of course, when in use, the shaft 10 of the male fastener will be threaded into the hole of another item (or located in a plurality of items) and rotated with the shaft 10 and about the shaft 10 The article (or items) will be positioned between the top 16 of the male fastener and the female fastener.

The protruding elements 12 provided by the present invention are preferably arranged at equal intervals. The equal spacing of the protruding elements 12 forms a void or cavity (i.e., a space) 20 between each of the protruding elements 12. The space 20 thus formed provided by the present invention is adapted to receive a wedge 22 (or the wedge 22 can be configured to be inserted into a plurality of spaces 20). More specifically, the outer dimensions of the wedge 22 provided by the present invention will be configured to be inserted into and fit into the space 20 or spaces 20 between adjacent protruding elements 12. When the wedge member 22 is inserted into one or more spaces, the wedge member 22 will act to prevent the female fastener from rotating about the shaft 10 (in a counterclockwise manner), so that the female fastener is prevented from facing the bottom of the male fastener. Travel in the direction of 18. More specifically, when the wedge 22 is inserted into one or more of the spaces 20, the wedge 22 is configured to prevent the female fastener from rotating in a counterclockwise direction (otherwise, this will cause the female fastener to move along the axis 10 toward The bottom 18 of the male fastener travels, which will loosen the female fastener (relative to the items fixed by the male and female fasteners). As noted above, in certain embodiments, the wedge 22 can be configured to simultaneously straddle and insert a plurality of spaces 20 on the shaft 10 of the male fastener, which creates increased resistance to prevent the female fastener from surrounding the male The shaft 10 of the fastener rotates in a counterclockwise direction. Furthermore, as shown in Figures 1 and 7D, the female and wedge members 22 can be configured such that the wedge member 22 can be manually accessed adjacent to the female fastener and can be manually operated, for example, the wedge member 22 can be pulled out A space 20 allows the female fastener to be easily released or removed from the shaft 10 of the male fastener.

According to a particularly preferred embodiment, the wedge member 22 provided by the present invention is selectively provided with a spring 24 whereby the spring 24 applies a constant force to push the wedge member 22 between the two protruding members 12. In space 20. The spring 24 provided by the present invention can rest between two solid guide walls 42 forming a portion of the wedge 22. In yet another aspect, according to a particular embodiment, the wedge 22 provided by the present invention can be incorporated into (a portion of) a female fastener, as shown in FIG. In such an embodiment, the wedge 22 can be flush with the outer surface of the female fastener such that the wedge 22 can be manually moved from the outer surface (outer/bottom) of the female fastener to the female fastener. (If desired) the wedge 22 can be manually pulled out of the space 20 to allow the female fastener to freely rotate about the shaft 10 of the male fastener in a counterclockwise (loose) manner, ie, with the female fastener facing The bottom 18 of the male fastener travels.

Referring to Figure 5, in accordance with a particular preferred embodiment, the space 20 provided between the respective protruding members 12 of the present invention will include a first region 26 adjacent the outer surface 14 of the shaft 10 and a member adjacent the protruding member 12. A second region 28 of one of the tops 30. The first region 26 of the space 20 provided by the present invention will preferably have less volume (and will exhibit a smaller size) than the second region 28 of the space 20. This configuration produces a space 20 that is widest at a second region 28 adjacent the top 30 of the protruding element 12, and that is narrowed as it approaches the first region 26 adjacent the outer surface 14 of the shaft 10. In such an embodiment, the wedge 22 will assume a corresponding outer dimension. More specifically, the tip end of the wedge member 22 in the insertion space 20 will include a region that narrows near the end (tip) of the insertion space 20 of the wedge member 22 and that region will be adjacent to the outer surface of the shaft 10. 14.

In accordance with yet another embodiment of the present invention, the protruding elements 12 can be configured to impart greater resistance to movement of the wedge 22 relative to other directions in one direction. More specifically, in such an embodiment, the protruding elements 12 can be compared to the resistance when the wedge 22 is moved from one space 20 to the right (or clockwise) to another adjacent space 20. It is configured to give the wedge 22 greater resistance when moving from one space 20 to the left (or counterclockwise) to another adjacent space 20. In other words, there is less resistance to moving the wedge 22 to the space 20 on the right side (while the female fastener will be allowed to rotate with less force and clockwise and tightened), The protruding elements 12 can be configured to impart more resistance (or prevention) to the wedge 22 to move to the space 20 on the left side (while the female fastener will not be allowed to rotate and loosen in a counterclockwise manner). In yet another illustration, the protruding elements 12 and wedges 22 are configured to (a) allow the wedge 22 to easily slide out and move adjacent to the direction in which the female fastener is fastened to the male fastener. Space 20, and (b) prevents the wedge member 22 from moving in an opposite direction that would release the female fastener from the male fastener to another adjacent space 20.

According to such an embodiment, each of the spaces 20 between each of the protruding elements 12 can include four surfaces formed by protruding elements 12 on each side of the space 20. More specifically, and with reference to FIG. 5, the space 20 will include a first (left) surface 32 that lies perpendicular to a line tangential to the outer surface 14 of the shaft 10. In accordance with such an embodiment, a second surface 34 is adjacent the first surface 32 and the second surface 34 is located at an angle of about 30 degrees from the line tangential to the outer surface 14 of the shaft 10. In accordance with such an embodiment, a third surface 36 is adjacent the second surface 34 and the third surface 36 is located at an angle of approximately 60 degrees from the line tangential to the outer surface 14 of the shaft 10. Finally, in accordance with such an embodiment, a fourth surface 38 will be adjacent the third surface 36 and the fourth surface 38 will be at an angle of approximately 20 degrees from the line tangential to the outer surface 14 of the shaft 10. . These four surfaces 32, 34, 36, 38 will collectively form each of the spaces 20. The arrangement of the first surface 32 provided by the present invention is perpendicular to a line tangential to the outer surface 14 of the shaft 10, which will effectively resist (or prevent) the wedge member 22 from unnecessarily moving to the wedge member. In the space 20 on the left side of the 22, that is, the arrangement of the first surface 32 will strongly resist (or prevent) the ability of the wedge member 22 and the female fastener to rotate in a counterclockwise manner (which would otherwise loosen the female fastener). Conversely, the bevel created by the angle of the third surface 36 and the fourth surface 38 will allow the wedge 22 to slidably move with less resistance to the space 20 on the right side of the wedge 22, making the wedge The piece 22 and the female fastener can be rotated in a clockwise manner to secure the female fastener.

In yet another embodiment, the wedge member 22 provided by the present invention can be integrally formed with the outer surface (thread) of the bore of the female fastener (Fig. 6). In these embodiments, the wedge 22 will preferably present a sloping surface 50 that is configured to allow the wedge 22 (and the attached female fastener) to be clockwise with minimal force The shaft 10 is rotated about the male fastener so that the wedge 22 does not interfere with the female fastener being rotated and "fastened". For example, the angled surface 50 will preferably be less than 45 degrees from the line tangential to the outer surface 14 of the shaft 10 (and the top or tip of the surface 50 will preferably be long enough to remain in the adjacent protruding element 12). At the top, as the female fastener rotates clockwise, the surface 50 will be allowed to slide over the protruding element 12). Moreover, the wedge 22 will further present a surface 52 (or a portion of the surface 52) that is at an angle greater than 45 degrees with respect to the line tangential to the outer surface 14 of the shaft 10, such that the surface 52 of the wedge 22 (and The attached female fastener is prevented from rotating in a counterclockwise direction about the axis 10 of the male fastener, otherwise the female fastener will be "released".

Referring now to Figure 7, in accordance with yet another embodiment of the present invention (with respect to the embodiment of Figure 5), each of the spaces 20 between each of the protruding elements 12 can include three surfaces, each of which is located in the space 20. The lateral protruding elements 12 are formed. More specifically, FIG. 7A provides a cross-sectional view of a male fastener (eg, a bolt) including a plurality of spaces 20 between the protruding members 12 on the shaft 10 of the male fastener, the spaces 20 It is configured to receive the wedge 22 shown here. Figure 7B is a cross-sectional view of a female fastener (e.g., a nut) including an integrally formed wedge member 22 that can be used to secure the female fastener to the shaft 10 of the male fastener of Figure 7A. The right place.

As with other embodiments described herein, in the embodiment illustrated in Figure 7, the resistance is compared to when the wedge 22 is moved from one space 20 to the right (or clockwise) to another adjacent space 20. The protruding elements 12 are configured such that when the wedge 22 is moved to the left (or counterclockwise), the protruding elements 12 impart more resistance to movement of the wedge 22 from one space 20 to another adjacent space 20. . More specifically, in these embodiments, each of the spaces 20 between each of the protruding elements 12 can include three surfaces formed by protruding elements 12 on each side of the space 20. For example, a first left surface 60 (relative to a line tangent to the outer surface of the shaft 10) is at a first angle; a second central surface 62 is adjacent to the first left surface 60 and at a second angle; A third right surface 64 is adjacent the second central surface 62 and (at a line tangential to the outer surface of the shaft 10) at a third angle. In such an embodiment, the first angle is at least twice the amount of the second angle (ie, an amount of at least twice the size); the third angle is less than the first angle. Compared to the resistance that exists when the wedge 22 moves from one space 20 to the right (or clockwise) to another adjacent space 20, when the wedge 22 is from a space 20 to the left (or counterclockwise) When moved to another adjacent space 20, the configuration of the space 20 between the protruding elements 12 creates a greater resistance during movement of the wedge 22. Stated another way, the protruding elements 12 and wedges 22 are configured to (a) allow the wedge 22 to easily slide out and move into adjacent spaces in a direction that secures the female fastener to the male fastener. 20, and (b) preventing the wedge member 22 from moving in an opposite direction to the adjacent space 20 in a direction that causes the female fastener to loosen from the male fastener. In still another aspect, in these embodiments, the wedge 22 is configured to nest into and nest within the space 20 between the two protruding elements 12. That is, the overall geometry and shape of the wedge 22 is complementary to the internal geometry and shape of each of the spaces 20 (as long as the overall geometry and shape of the wedge 22 is internal to the interior geometry of each of the spaces 20 described herein. Complementary shapes, less relevant to the specific geometry and shape used). For example, the width of the portion of the wedge member 22 that enters the space 20 may gradually increase from a top region 66 to a bottom region 68 (thus forming a generally trapezoidal shape), which allows the wedge member 22 to be securely fitted into the space 20 Inside, as shown in Figure 7.

Although the present specification refers to a female fastener equipped with a wedge member 22 that is configured to be disposed in one or more spaces 20 on the shaft 10 of the male fastener, those of ordinary skill in the art will appreciate that In an alternative embodiment, the wedge 22 can be located on the male fastener and configured to be disposed in one or more spaces 20 located within the aperture of the female fastener. For example, in such an embodiment, the aperture of the female fastener provided by the present invention will include one or more spaces 20, as described herein, adapted to receive a corresponding wedge on one of the shafts 10 of the male fastener. Item 22. The threads of the male fastener (on the shaft 10 of the male fastener) will be configured to engage the passageway in the bore of the female fastener such that the male fastener can be passed through the axis of the male fastener and Rotate (ie, "fasten" the female fastener) toward the top of the male fastener. After the female fastener is sufficiently "fastened", the wedge member 22 (on the shaft 10 of the male fastener) can be disposed in a space 20 (or other region) within the bore of the female fastener, such that The wedge member 22 prevents the female fastener from "loose" by rotating about the shaft 10 in a direction that causes the female fastener to travel along the axis 10 of the male fastener and away from the top of the male fastener.

According to another aspect of the invention, a male and female fastener sets (as described above) are included. In such an embodiment, the wedge 22 can be incorporated into such a female fastener or, alternatively, the wedge 22 can exist as a separate component. In accordance with yet another aspect of the present invention, a set of male fasteners, female fasteners and wedge members 22 as described herein are included. Similar to other embodiments of the invention, the wedge 22 can be incorporated into such a female fastener or, alternatively, the wedge 22 can exist as a separate component. The male fasteners, female fasteners, and wedges 22 as described herein may be constructed of any suitable rigid material, such as steel, iron, plastic, and the like.

The many aspects and benefits of the present invention are apparent from the embodiments, and the scope of the invention is intended to cover all aspects and advantages of the invention. In addition, many modifications and variations are obvious to those skilled in the art, and the scope of the invention is not to be construed as limiting the invention. Therefore, all appropriate modifications and equivalents should be construed as falling within the scope of the invention as claimed herein.

10‧‧‧Axis

12‧‧‧ protruding elements

14‧‧‧ outer surface

16‧‧‧ top

18‧‧‧ bottom

20‧‧‧ space

22‧‧‧Wedges

24‧‧ ‧ spring

26‧‧‧First area

28‧‧‧Second area

30‧‧‧ top

32‧‧‧ first surface

34‧‧‧second surface

36‧‧‧ third surface

38‧‧‧ fourth surface

40‧‧‧ channel

42‧‧‧ Guide wall

50‧‧‧ surface

52‧‧‧ Surface

60‧‧‧ first left surface

62‧‧‧Second center surface

64‧‧‧ third right surface

66‧‧‧Top area

68‧‧‧ bottom area

Figure 1 is a perspective view of the male and female fastener (screw/nut) combination described herein. 2 is a top plan view of the male and female fastener combinations described herein. Figure 3 is a side elevational view of the male and female fastener combinations described herein. 4 is a cross-sectional view of the male and female fastener combinations described herein, showing a wedge member being secured in place on the female fastener. Figure 5A is a cross-sectional view of another embodiment of a space as described herein between the protruding elements. Figure 5B is a cross-sectional view of the rod (or shaft) of the male fastener, the space (between the two protruding elements) has been described in Figure 5A. Figure 6A is a cross-sectional view of the male and female fastener combinations described herein, showing a wedge member (which is integrally formed with the inner surface of the female fastener) for securing the female fastener in place. Figure 6B is an enlarged view of the wedge of Figure 6A. 7A is a cross-sectional view (eg, a bolt) of a male fastener including a plurality of spaces on the shaft of the male fastener and between the protruding elements, the spaces being configured to receive A wedge as shown and described herein. Figure 7B is a cross-sectional view (e.g., a nut) of a female fastener including a wedge member (which is integrally formed with the inner surface of the female fastener) that can be used to the female fastener Fixed in position on the shaft of the male fastener in Figure 7A. Figure 7C is a perspective enlarged view of two wedge members integrally formed with the inner surface of the female fastener of Figure 7B. Figure 7D is a perspective view of the male and female fasteners of Figures 7A and 7B.

Claims (13)

A fastener set comprising a male fastener, a female fastener and a wedge member, whereby the male fastener is adapted to be received by the female fastener and coupled to the female fastener, wherein: (a) the male The fastener includes a rigid shaft including a passage radially from a top of the male fastener to a bottom of the male fastener about a circumference of the shaft, wherein the passage is adapted to receive a corresponding thread in a hole of the female fastener; and (b) the wedge member is integrally formed with a surface of one of the holes of the female fastener, wherein the wedge is configured to be one of the shafts of the male fastener The outer surface contacts and prevents the female fastener from rotating about the axis in a direction that causes the female fastener to move toward the bottom of the male fastener. The fastener set of claim 1, wherein the wedge is further configured to allow the female fastener to rotate about the axis in a direction that causes the female fastener to move toward the top of the male fastener. The fastener set of claim 2, wherein: (a) the shaft of the male fastener comprises a series of protruding elements; (b) the protruding elements are radially surrounding the circumference of the shaft; and (c) The protruding elements are equally spaced apart, wherein a space is formed between each of the protruding elements, wherein the wedge is adapted to be inserted into a space between the two protruding elements. The fastener set of claim 3, wherein the wedge is bonded to the interior of the female fastener, and the wedge is manually accessible from an outer surface of the female fastener to the interior of the female fastener. The fastener set of claim 4, wherein the protruding elements and the wedge are configured to (a) allow the wedge to easily follow the direction in which the female fastener is fastened to the male fastener Sliding out and moving into the adjacent spaces, and (b) preventing the wedge from moving into an adjacent space in an opposite direction that releases the female fastener from the male fastener. The fastener set of claim 5, wherein each of the spaces between each of the protruding elements comprises three surfaces formed by one of the protruding elements on each side of the space, wherein: (a) a first left surface is located at a first angle from a line tangent to an outer surface of the shaft; (b) a second central surface is adjacent to the first left surface and is located opposite to The line tangent to the outer surface of the shaft differs by a second angle; (c) a third right surface is adjacent to the second central surface and is located at a third angle relative to a line tangent to the outer surface of the shaft (d) the first angle is at least twice the second angle; and (e) the third angle is less than the first angle. The fastener set of claim 6, wherein the male fastener is a screw and the female fastener is a nut. The fastener set of claim 6, wherein the male fastener is a bolt, and the female fastener is a nut. The fastener set of claim 6, wherein the wedge is attached to the female fastener. The fastener set of claim 6, wherein the wedge is not attached to the female fastener. The fastener set of claim 6, wherein the wedge is integrally formed with the female fastener. The fastener set of claim 6, wherein the wedge member includes a spring that applies a constant force to push the wedge member into a space between the two protruding members. A fastener set comprising a male fastener, a female fastener and a wedge member, whereby the male fastener is adapted to be received by the female fastener and coupled to the female fastener, wherein: (a) the male The fastener includes a rigid shaft; (b) the female fastener includes a bore configured to receive the rigid shaft; (c) the shaft of the male fastener or the bore of the female fastener includes a passage The passageway radially travels about the shaft or a circumference of the bore, wherein the passageway is adapted to receive a respective thread in the bore of the female fastener or the shaft of the male fastener And (d) the wedge member is integrally formed with a surface of one of the shafts of the male fastener or a surface of the female fastener, wherein the wedge is configured to: (i) when the wedge is When the surface of the shaft of the male fastener is integrally formed, the wedge member is disposed in a space between the two protruding members on the hole of the female fastener, or when the wedge member and the female fastener are in the hole When the surface is integrally formed, the wedge member is located on two axes of the male fastener And (ii) preventing the female fastener from rotating about the axis in a direction that causes the female fastener to loosen and move toward a bottom of the male fastener.