CN201786879U - Square-head internal pentagonal full-thread flange bolt - Google Patents
Square-head internal pentagonal full-thread flange bolt Download PDFInfo
- Publication number
- CN201786879U CN201786879U CN2010202903310U CN201020290331U CN201786879U CN 201786879 U CN201786879 U CN 201786879U CN 2010202903310 U CN2010202903310 U CN 2010202903310U CN 201020290331 U CN201020290331 U CN 201020290331U CN 201786879 U CN201786879 U CN 201786879U
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- China
- Prior art keywords
- spiral shell
- square
- screw rod
- shell head
- full
- 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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- 239000000463 material Substances 0.000 abstract description 4
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000007787 solid Substances 0.000 description 3
- 230000002950 deficient Effects 0.000 description 1
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Abstract
The utility model discloses a square-head internal pentagonal full-thread flange bolt, which comprises a square head (1) and a screw rod (2). An internal pentagonal counter bore (3) is arranged on the square head (1), a flange plate (4) is arranged between the square head (1) and the screw rod (2), a plurality of radially extending anti-loosening teeth are arranged on the end face of the flange plate, which is distant from the square head, the screw rod (2) adopts full thread and provided with a through hole (6) penetrating axially, and the through hole (6) is communicated with the counter bore (3). The square-head internal pentagonal full-thread flange bolt can not slip when in rotation and saves materials.
Description
Technical field
The utility model relates to a kind of fastening piece, specifically is five jiaos of Full Thread FT flange screws in a kind of side's spiral shell head.
Background technique
The square spiral shell head screw of prior art comprises that cross section is the square spiral shell head side of being spiral shell head and screw rod, and it is hexagonal counterbore that described spiral shell head is provided with cross section, promptly interior hexagonal counterbore, and described screw rod is a solid screw.
There is following defective in the square spiral shell head screw of prior art: at first, be interior hexagonal counterbore owing to what establish on the spiral shell head, in actual use, when screwing this screw with hexagon wrench, often skid easily; Secondly, because screw rod is solid, relatively take material, cost is than higher.
The model utility content
The technical problems to be solved in the utility model is, provides a kind of non-slip and save five jiaos of Full Thread FT flange screws in the square spiral shell head of material in screwing the process of this screw.
Technical solution of the present utility model is, a kind of interior five jiaos of Full Thread FT flange screws of square spiral shell head with following structure are provided, its side's of comprising spiral shell head and screw rod, described side's spiral shell head is provided with interior five jiaos of counterbores, be provided with flange plate between described side's spiral shell head and the screw rod, described flange plate is provided with some the radial locking teeth that radially extend away from the end face of spiral shell head, and described screw rod is thread section entirely, described screw rod is through with through hole along axis, and described through hole is communicated with counterbore.
After adopting above structure, five jiaos of Full Thread FT flange screws compared with prior art have the following advantages in the utility model side's spiral shell head:
Because the counterbore on this spiral shell head is interior five jiaos, according to general knowledge as can be known, many more easy more the skidding of polygonal seamed edge are that circle is the easiest as the infinite many limit polygonals of seamed edge in the polygonal skids, so the screw of interior five jiaos of counterbores screws, more is difficult for skidding than interior hexagonal counterbore screw is more convenient; And because screw rod is through with through hole along axis, obviously, cored screw is than solid screw material saving more, and cost is lower.
Description of drawings
Fig. 1 is the structural representation of facing of the interior five jiaos of Full Thread FT flange screws of the utility model side's spiral shell head.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the right elevation of Fig. 1.
Fig. 4 is the sectional structure schematic representation of five jiaos of Full Thread FT flange screws in the utility model side's spiral shell head.
Shown in the figure
1, square spiral shell head, 2, screw rod, 3, counterbore, 4, flange plate, 5, locking tooth, 6, through hole.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, five jiaos of Full Thread FT flange screws in the utility model side's spiral shell head, its side's of comprising spiral shell head 1 and screw rod 2, described side's spiral shell head 1 is provided with interior five jiaos of counterbores 3, be provided with flange plate 4 between described side's spiral shell head 1 and the screw rod 2, described flange plate 4 is provided with some the radial locking teeth 5 that radially extend away from the end face of square spiral shell head 1, and described screw rod 2 is a thread section entirely, described screw rod 2 is through with through hole 6 along axis, and described through hole 6 is communicated with counterbore 3.
Claims (1)
1. five jiaos of Full Thread FT flange screws in the square spiral shell head, its side's of comprising spiral shell head (1) and screw rod (2), it is characterized in that: described side's spiral shell head (1) is provided with interior five jiaos of counterbores (3), be provided with flange plate (4) between described side's spiral shell head (1) and the screw rod (2), described flange plate (4) is provided with some the radial locking teeth (5) that radially extend away from the end face of spiral shell head, described screw rod (2) is thread section entirely, described screw rod (2) is through with through hole (6) along axis, and described through hole (6) is communicated with counterbore (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202903310U CN201786879U (en) | 2010-08-09 | 2010-08-09 | Square-head internal pentagonal full-thread flange bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202903310U CN201786879U (en) | 2010-08-09 | 2010-08-09 | Square-head internal pentagonal full-thread flange bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201786879U true CN201786879U (en) | 2011-04-06 |
Family
ID=43818843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202903310U Expired - Fee Related CN201786879U (en) | 2010-08-09 | 2010-08-09 | Square-head internal pentagonal full-thread flange bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201786879U (en) |
-
2010
- 2010-08-09 CN CN2010202903310U patent/CN201786879U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20110809 |