NF EN 2874

Aerospace series. Bolts, large bihexagonal head, close tolerance normal shank, medium length thread, in heat resisting nickel base alloy, passivated. Classification : 1550 MPa (at ambient temperature) / 315 degrees celsius.

La présente norme spécifie les caractéristiques des vis à tête bihexagonale large, tige normale à tolérance serrée, filetage moyen, en alliage résistant à chaud à base de nickel, passivées.

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