Screws that form threads in the body into which they are screwed, e.g. wood screws, self-tapping screws

Classification Context

Section:

MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

Class:

ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL

Subclass:

DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING

Related Keywords

Child Classifications

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• F16B 25/02 by a cutting and material removing action, e.g. fluted self-tapping screws
• F16B 25/04 by a slicing and material displacing action, e.g. wood screws with sharp thread crests
• F16B 25/06 by swaging, i.e. material deforming action
• F16B 25/08 by a combination of any two or all of the actions provided for in groups
• F16B 25/1 Screws performing an additional function to thread-forming, e.g. drill screws