Self-tapping screw and method for joining thin workpieces
US6494655B1 · kind B1 · utility
12Cited by
15References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 13, 2001 |
| Grant date | Dec 17, 2002 |
| Priority date | — |
| Expiry date | Sep 13, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B35/048
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A threaded self-tapping screw for joining thin workpieces having a tapered root portion adjacent to the head of the screw. A plurality of threads are disposed on the body and the tapered root portion of the screw such that the radial distance from the center of the screw to the crests of the threads is maintained along both the body and the tapered root portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.