ESSVE box screws L8 with pointed end are designed for mounting interior door boxes in wood, concrete, lightweight concrete, light clinker, brick and hollow brick. Box screws L8 provide a fully adjustable mounting. Specially adapted for windows with 9/5 mm holes. Also suitable for 14/5 mm holes. Screws made of hardened steel, bright galvanized. Screws for box with combined hole; TX nozzle, TX25. By screwing in the L-box screws, the nails under the head will be attached to the box. The box is adjusted by screwing in the box screw L deeper or by unscrewing it slightly. Cover the assembly with a cover of appropriate color.