CN201843879U - Self-tapping screw - Google Patents
Self-tapping screw Download PDFInfo
- Publication number
- CN201843879U CN201843879U CN2010206033557U CN201020603355U CN201843879U CN 201843879 U CN201843879 U CN 201843879U CN 2010206033557 U CN2010206033557 U CN 2010206033557U CN 201020603355 U CN201020603355 U CN 201020603355U CN 201843879 U CN201843879 U CN 201843879U
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- China
- Prior art keywords
- screw
- head
- self
- tapping screw
- tapping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a screw, in particular to a self-tapping screw used on a metal plate. The technical scheme is that the self-tapping screw comprises a screw body and a head arranged at the top of the screw body, and threads are arranged on the external surface of the screw body. The self-tapping screw is characterized in that the head is arranged on one side of the screw body, anti-slipping teeth are arranged on the side surface of the head, the periphery of the connecting part of the head and the screw body is provided with a concave chamber, and the root of the threads on the screw body extends to the concave chamber. By adopting the technical scheme, the novel self-tapping screw has the advantages that the defects existing in the prior art are overcome, the screw can be used on the metal plate with any thickness, the screw is not apt to slip, and compared with the conventional self-tapping screw, the tightening torque is greatly improved.
Description
Technical field
The utility model relates to a kind of screw, especially for the tapping screw on the sheet metal.
Background technique
Tapping screw is that known being used for of people is fixed on fixed connecting piece on another parts with parts.Common tapping screw includes the body of screw and is positioned at the head at body of screw top, the outer surface of the body of screw is provided with screw thread, has certain spacing between the heel of screw thread and the head, the side of a side that is positioned at the body of screw of head is a smooth surface, and another side is provided with for stressed groove or the hole of throw.When the tapping screw of said structure is used on the sheet metal, the thickness of sheet metal is had certain requirement, when thickness does not reach when requiring tapping screw will stripped thread, torsion is little, has a strong impact on the using effect performance.
Summary of the invention
The purpose of this utility model is to overcome the deficiency that prior art exists, provide a kind of can use on any thickness sheet metal and be not easy to skid a kind of novel tapping screw that the comparable conventional self threading pin of locking torsion improves greatly.
For achieving the above object, the utility model provides following technological scheme: a kind of tapping screw, include the body of screw and the head that is positioned at body of screw top, the outer surface of the body of screw is provided with screw thread, it is characterized in that: a side that is positioned at the body of screw of described head, its side is provided with slideproof tooth, and the periphery with body of screw joint of described head is made as cavity, and the thread root on the body of screw extends to cavity.
By adopting such scheme, after tapping screw was screwed on the sheet metal, its slideproof tooth can embed the surface of sheet metal, increased frictional force; In addition, the periphery with body of screw joint of head is made as cavity, like this in processing, can allow the root of screw thread extend in the cavity or maintain an equal level with the actinal surface of cavity, screw is not easy to skid like this, when the thread root of tapping screw did not also screw in or just screws in sheet metal, tight stressed contact of face of sheet metal and the band slideproof tooth of head was so can reach very big torsion.
Further setting of the present utility model is: described slideproof tooth evenly is arranged on the side of head, and the height of slideproof tooth is 0.06-0.15mm.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation;
Fig. 2 is the structural representation of looking up of Fig. 1.
Embodiment
As depicted in figs. 1 and 2, a kind of tapping screw, include the body of screw 1 and the head 2 that is positioned at body of screw top, the outer surface of the body of screw 1 is provided with screw thread 11, in the utility model embodiment, the side 21 of a side that is positioned at the body of screw 1 of described head 2 is provided with slideproof tooth 22, and the height of slideproof tooth 22 is between the 0.06-0.15mm, the periphery with the body of screw 1 joint of described head 2 is made as cavity 23, and the screw thread heel 111 on the body of screw 1 extends to cavity 23.The utility model adopts such scheme, and after tapping screw was screwed on the sheet metal, its slideproof tooth 22 can embed the surface of sheet metal, increases frictional force; In addition, the periphery with the body of screw 1 joint of head 2 is made as cavity 23, like this in processing, can allow the root 111 of screw thread 11 extend in the cavity 23 or maintain an equal level with the actinal surface of cavity 23, screw is not easy to revolve like this, when the thread root 111 of tapping screw did not also screw in or just screws in sheet metal, sheet metal and tight stressed contact the in the side 21 of the band slideproof tooth of head 2 were so can reach very big torsion.
Claims (2)
1. tapping screw, include the body of screw and the head that is positioned at body of screw top, the outer surface of the body of screw is provided with screw thread, it is characterized in that: the side of a side that is positioned at the body of screw of described head is provided with slideproof tooth, the periphery with body of screw joint of described head is made as cavity, and the thread root on the body of screw extends to cavity.
2. tapping screw according to claim 1 is characterized in that: described slideproof tooth evenly is arranged on the side of head, and the height of slideproof tooth is 0.06-0.15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206033557U CN201843879U (en) | 2010-11-12 | 2010-11-12 | Self-tapping screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206033557U CN201843879U (en) | 2010-11-12 | 2010-11-12 | Self-tapping screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201843879U true CN201843879U (en) | 2011-05-25 |
Family
ID=44038771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206033557U Expired - Fee Related CN201843879U (en) | 2010-11-12 | 2010-11-12 | Self-tapping screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201843879U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106133345A (en) * | 2014-03-20 | 2016-11-16 | 株式会社托普拉 | Tapping screw and fastening structure thereof |
| CN107740802A (en) * | 2017-10-17 | 2018-02-27 | 苏州华丰不锈钢紧固件有限公司 | A kind of cross recessed pan head tapping screw |
-
2010
- 2010-11-12 CN CN2010206033557U patent/CN201843879U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106133345A (en) * | 2014-03-20 | 2016-11-16 | 株式会社托普拉 | Tapping screw and fastening structure thereof |
| CN107740802A (en) * | 2017-10-17 | 2018-02-27 | 苏州华丰不锈钢紧固件有限公司 | A kind of cross recessed pan head tapping screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110525 Termination date: 20151112 |
|
| EXPY | Termination of patent right or utility model |