Title:
SELF-TAPPING SCREW AND METHOD FOR JOINING THIN WORKPIECES
Document Type and Number:
WIPO Patent Application WO2003023052
Kind Code:
A3
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.
Inventors:
PRITCHARD ALAN
Application Number:
PCT/EP2002/008663
Publication Date:
June 24, 2004
Filing Date:
August 02, 2002
Export Citation:
Assignee:
CONTI FASTENERS AG (CH)
International Classes:
F16B25/02; F16B25/00; F16B33/02; F16B35/00; F16B35/04; (IPC1-7): F16B25/10; F16B35/04
Foreign References:
| US5597357A | 1997-01-28 | |||
| US5356253A | 1994-10-18 | |||
| US5909992A | 1999-06-08 | |||
| US3661046A | 1972-05-09 |
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