Panel screw (A4 acid-resistant) for wooden stud

Patented design with a sharp tip and threads adapted for anchoring in wood. The threads grip immediately and pull the screw into the panel. The threads under the head secure the panel, while the grooves under the head countersink the screw. Suitable for mounting panels, fences, etc. The screw meets the requirements of AMA Hus 21 HSD.16 regarding panel mounting. The screw's unique driving properties have been achieved by equipping the screw with a cutting drill tip, as well as angled and longitudinal cuts between the threads.