/ RDLs / ISO 15926 Part 4: Core reference data - Edition 4 / MUSHROOM SQUARE NECK FASTENER HEAD

MUSHROOM SQUARE NECK FASTENER HEAD

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https://posccaesar.org/ontology/15926-4/4.0/MUSHROOM_SQUARE_NECK_FASTENER_HEAD
Definition A <MUSHROOM SQUARE NECK FASTENER HEAD> is a <MUSHROOM FASTENER HEAD> that is furnished with a square neck on the underside to prevent the screw from loosening when tightened.