Calibración de los huecos hexagonales (ISO 23429:2004).
Gauging of hexagon sockets (ISO 23429:2004).
Calibrage des six pans creux (ISO 23429:2004).
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See part of the content of the standard
21.060.10 / Bolts, screws, studs
CTN 17 - Fasteners
EN ISO 23429:2004 (Identical)
ISO 23429:2004 (Identical)
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