Self-drilling fastener

Details Self-drilling fastener Self-drilling fastener

1996-09-20

1999-09-07

Saether, Flemming

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

411414, 4113871, F16B 2500

Patent

active

059476702

ABSTRACT:
A self-drilling fastener includes an elongated shank region having first and second ends, a head at the first end and a drill point at the second end. Included in the shank region is a root having helical threads extending therefrom with a predetermined thread density. The threads are configured to extend onto the drill point, which point extends from the root, and has a conical point with a rounded tip and a flat side. The flat side defines a pair of drilling edges.

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