DIN 7380 Hexagon socket button head screws torx Zinc-plated steel 10.9 M3x45, 100 000 pcs. M3x40, 100 000 pcs. DIN 7991 (ISO 10642) Hexagon socket countersunk head screws Zinc-plated steel 10.9 M3x45, 100 000 pcs. M3x40, 100 000 pcs.