DIN 7971 Screws with rounded cylindrical head for thin metal and plastic sheets. Self-tapping sheet metal screw with cylindrical, lenticular head and straight slot. The screw is full threaded, the deep slot makes it easy to screw. They are used for various fittings, slotting of metal sheets, metal doors and can be completed with nylon dowels. The screws are made of carbon steel and have a galvanized, anti-corrosion coating.

ISO 1481:83
BDS 1481:03

from Ilchevi Fasteners; Ilchevi Fasteners LTD, gr. Plovdiv