NF E25-022

Fasteners. Tolerances for bolts, screws and nuts product grade F (fine mechanic). Thread diameters from 1 up to 3 mm.

La présente norme définit les tolérances à utiliser pour les vis et écrous de diamètres de filetage de l mm à 3 mm inclus, lorsque des exigences très grandes sont demandées en ce qui concerne la qualité des produits, par exemple dans l'industrie de la mécanique fine (produits de grade F).

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