MY163898A - Self-tapping thread forming screw and corresponding thread roll die - Google Patents
Self-tapping thread forming screw and corresponding thread roll dieInfo
- Publication number
- MY163898A MY163898A MYPI2011700128A MYPI2011700128A MY163898A MY 163898 A MY163898 A MY 163898A MY PI2011700128 A MYPI2011700128 A MY PI2011700128A MY PI2011700128 A MYPI2011700128 A MY PI2011700128A MY 163898 A MY163898 A MY 163898A
- Authority
- MY
- Malaysia
- Prior art keywords
- thread
- crest
- fastener
- profile
- flank
- Prior art date
Links
Landscapes
- Forging (AREA)
Abstract
A thread forming screw thread fastener (10) for fastening into a hole formed by the fastener in a work piece, the fastener comprising: a head (12) having a drice to be engaged with a driver bit; and a shank with threads having asymmetrical thread profile with a minor diameter and a major diameter, the major diameter defining a thread crest of the screw thread, and the minor diameter defining the thread root of the screw thread, the profile of the screw thread between adjacent thread crest forming a thread flank (20), the thread flank having a first central portion of constant radius along the thread root, the radius common at the thread root, at each adjacent thread crest, and at two transition intersection points, the profile of the thread flank having second and third portions defined by surfaces having different radii of curvature between each transition intersection point and each adjacent thread crest.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MYPI2011700128A MY163898A (en) | 2009-02-16 | 2009-02-16 | Self-tapping thread forming screw and corresponding thread roll die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MYPI2011700128A MY163898A (en) | 2009-02-16 | 2009-02-16 | Self-tapping thread forming screw and corresponding thread roll die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MY163898A true MY163898A (en) | 2017-11-15 |
Family
ID=61017712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MYPI2011700128A MY163898A (en) | 2009-02-16 | 2009-02-16 | Self-tapping thread forming screw and corresponding thread roll die |
Country Status (1)
| Country | Link |
|---|---|
| MY (1) | MY163898A (en) |
-
2009
- 2009-02-16 MY MYPI2011700128A patent/MY163898A/en unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| NZ705037A (en) | Fastener with drill pilot and reversed threaded regions | |
| US7677854B2 (en) | Self-boring and self-tapping screw | |
| MX2013003701A (en) | Threaded fastener. | |
| MY160088A (en) | Self-tapping screw | |
| MX345851B (en) | Weldless building structures. | |
| HK1101711A1 (en) | Thread-forming screw | |
| JP6431127B2 (en) | Metric locking stopper tapping screw | |
| ATE523155T1 (en) | THREAD FORMING SCREW | |
| WO2008130855A3 (en) | Threaded screw fastener with multiple characteristic threads | |
| DE502007002123D1 (en) | Hole and thread forming screw | |
| TW200718873A (en) | Ribbed fastener | |
| EP1847345A3 (en) | A tool for chip removing machining as well as a part and threaded joint therefor | |
| WO2005081691A3 (en) | Anti-splay closure with multi-stepped removal counterbore | |
| CA2559595A1 (en) | Dual threaded screw for composite materials | |
| TW200514640A (en) | Internal thread member, external thread member, and working tool for internal thread | |
| ATE511931T1 (en) | SELF-DRILLING SCREW AND METHOD OF PRODUCTION THEREOF | |
| WO2008030409A3 (en) | Positive auto blocking machine screw mechanism | |
| JP2006329254A (en) | Double threaded wood screw | |
| CN205136305U (en) | High -strength bolt of area replacement head | |
| MY163898A (en) | Self-tapping thread forming screw and corresponding thread roll die | |
| US20150010375A1 (en) | Self-tapping screw | |
| CN209083767U (en) | A kind of antirust tapping screw | |
| CN202326622U (en) | Fastener | |
| CN204591940U (en) | A kind of two bolt head bolt | |
| US20140017033A1 (en) | Self-tapping screw |