Used attributively in combinations such as "lag screw", "lag bolt"; treated as adjective per dictionary guidelines.
Translations
tire-fondTechnique de la fixation, emploi attributif. He secured the joists with lag screws.
Il a fixé les solives avec des vis tire-fond.
Definitions
Attributive: designating a heavy wood screw or bolt with a square or hexagonal head, used for fastening heavy timber or other materials. He secured the joists with lag screws.