MULTI-MATE FASTENER

A threaded fastener has a substantially single helical thread formed upon a shank portion thereof, and a plurality of substantially saw-blade type or serrated teeth are formed upon crest portions of leading ones of individual thread portions of the helical thread. The saw-blade type or serrated teet...

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Hauptverfasser: CHEN, CHIN-TSAI, KRAM, GUENTHER REINHARD
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creator CHEN, CHIN-TSAI
KRAM, GUENTHER REINHARD
description A threaded fastener has a substantially single helical thread formed upon a shank portion thereof, and a plurality of substantially saw-blade type or serrated teeth are formed upon crest portions of leading ones of individual thread portions of the helical thread. The saw-blade type or serrated teeth cut into side wall portions of any one of a multiplicity of substrates so as to substantially reduce re-quired insertion torque levels, render fastener insertion operations quicker, and enhance fastener pull-out resistance values.
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subjects 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
title MULTI-MATE FASTENER
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