Translations for hook in French

Here are paragraphs from public domain books translated:
"No, it is not even attached to a wire. This is very interesting. You can see now that it is fastened to a hook just above where the little opening for the ventilator is." — Non, il n’est même pas fixé à un fil de fer. Oh ! mais ceci devient fort intéressant. Tenez, regardez, le cordon est attaché à un crochet, juste au-dessus de la prise d’air.
The Adventures of Sherlock Holmes, by Arthur Conan Doyle Les Aventures de Sherlock Holmes, de Arthur Conan Doyle
But, suddenly, there was an outcry, promptly followed by shouts of rage: and one and all, men and women alike, rushed in disorder toward the well. One of the workman's brats was at that moment coming out of it, fastened by his belt to the hook at the end of the rope; and the three other urchins were drawing him up by turning the handle. More active than the rest, the corporal flung himself upon him; and forthwith the footman and the fat gentleman seized hold of him also, while the beggars and the lean sisters came to blows with the workman and his family. Mais soudain il y eut une exclamation et, aussitôt, des cris de colère, et tous, hommes et femmes, ils s’élancèrent en désordre vers le puits. Un des gamins de l’ouvrier en surgissait à ce moment, attaché par la ceinture au crochet de fer qui termine la corde, et les trois autres gamins le remontaient en tournant la manivelle. Plus agile, le caporal se jeta sur lui, et, tout de suite, le valet de chambre et le gros monsieur l’agrippèrent, tandis que les mendiants et les sœurs maigres se battaient avec le ménage ouvrier.
The Confessions of Arsene Lupin, by Maurice Leblanc Les Confidences d’Arsène Lupin, de Maurice Leblanc