NF E25-404

Square regular nuts (style 1) - Product grade C -Symbol Q

Le présent document spécifie les dimensions et les caractéristiques des écrous carrés normaux (style 1) , symbole Q, de grade C, à filetage métrique ISO, de diamètre nominal de filetage M5 à M39. Les écrous carrés larges de grade C sont définis dans la norme NF E 25-803.

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