M3 M4 M5 M6 COUNTERSUNK BOLTS ALLEN KEY BOLT SOCKET SCREWS A2 STAINLESS DIN 7991
Standard DIN 7991. Shape Countersunk. Shape: Countersunk. Head Style: Countersunk Head. Type: Allen Key Countersunk Socket Screw. Model Allen Key Socket Screw. Model: Allen Key Socket Screw. Drive Style Allen Key.