Zinc-plated for corrosion resistance. Self-tapping PoziDriv pan head and countersunk slotted head screws for multipurpose applications in the home, workshop and garage. Assorted sizes slotted: M3 x 8mm, M4 x 25mm and M5 x 20mm. Assorted sizes pozidriv: M3 x 12mm, M3 x 20mm, M4 x 20mm, M4 x 40mm, M5 x 20mm, M5 x 50mm, M6 x 30mm and M6 x 50mm. Handy storage case with compartments.