NF EN ISO 8741

Grooved pins. Half-length reverse-taper grooved.

La présente Norme internationale prescrit les caractéristiques des goupilles cannelées en acier ou en acier inoxydable austénitique, à trois cannelures progressives renversées sur la moitié de leur longueur, non débouchantes et régulièrement espacées, de diamètre nominal, d₁, de 1,5 mm à 25 mm inclus. Le matériau refoulé de chaque côté des cannelures forme un renflement dont le diamètre d₂, supérieur au diamètre nominal d₁, permet un ajustement serré de ces goupilles cannelées lorsqu'elles sont emmanchées en force dans un trou de diamètre de perçage égal au diamètre nominal de la goupille d₁ (voir article 4).

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