/ RDLs / ISO 15926 Part 4: Core reference data - Edition 4 / FREARSON ROUND FASTENER HEAD

FREARSON ROUND FASTENER HEAD

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https://posccaesar.org/ontology/15926-4/4.0/FREARSON_ROUND_FASTENER_HEAD
Definition A <FREARSON ROUND FASTENER HEAD> is a <ROUND FASTENER HEAD> that is furnished with a Frearson-type driving recess.