FLOW DRILL SCREW AND TIP CONFIGURATION

FLOW DRILL SCREW AND TIP CONFIGURATION

A screw includes a head portion, an externally threaded shank extending from the head portion, the externally threaded shank having an external surface, and a flow-hole-forming tip disposed at a distal end portion of the externally threaded shank. The flow-hole-forming tip includes a convex radiused...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Huff, Garret Sankey, Crockett, Stephen J, Freis, Amanda Kay, Ruszkiewicz, Brandt J
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
THERMAL INSULATION IN GENERAL
WEAPONS
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Beschreibung
Zusammenfassung:A screw includes a head portion, an externally threaded shank extending from the head portion, the externally threaded shank having an external surface, and a flow-hole-forming tip disposed at a distal end portion of the externally threaded shank. The flow-hole-forming tip includes a convex radiused lower zone having an external surface, a concave radiused middle zone having an external surface tangent to the external surface of the convex radiused lower zone, and a radiused distal end zone having an external surface tangent to the external surface of the concave radiused middle zone.