Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Externally threaded fastener element – e.g. – bolt – screw – etc. – Pilot end having means enhancing fastening or installation
Patent
1992-02-03
1992-08-25
Lindsey, Rodney M.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Externally threaded fastener element, e.g., bolt, screw, etc.
Pilot end having means enhancing fastening or installation
411411, 411416, F16B 2500
Patent
active
051413760
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.
REFERENCES:
patent: 2479730 (1949-08-01), Dewar
patent: 3125923 (1964-03-01), Hanneman
patent: 3288015 (1966-11-01), Hanneman
patent: 3426642 (1969-02-01), Phipard, Jr.
patent: 4749322 (1988-06-01), Sygnator
patent: 4781503 (1988-11-01), Bogel
patent: 4781506 (1988-11-01), Roberts et al.
Brown, Jr. Robert W.
Piacenti Frank
Sublett William H.
Williams John J.
Emhart Inc.
Lindsey Rodney M.
Smith Spencer T.
LandOfFree
Self drilling screw does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Self drilling screw, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self drilling screw will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-381026