Self drilling screw
US5141376A · kind A · utility
32Cited by
7References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 3, 1992 |
| Grant date | Aug 25, 1992 |
| Priority date | — |
| Expiry date | Feb 3, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B25/0057
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A self drilling screw for thin metal applications. The screw has a small point for drilling a hole in the thin metal and a substantially larger diameter non-tapered threaded section. Between these portions is an extended length taper having a plurality of thread pitches each including swaging lobes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.