M3 M4 M5 M6 COUNTERSUNK BOLTS ALLEN KEY BOLT SOCKET SCREWS A2 STAINLESS DIN 7991
M3 COUNTERSUNK ALLEN KEY BOLTS A2 STAINLESS STEEL DIN 7991 BOLT SOCKET SCREWS. Standard DIN 7991. Countersunk Socket Head Screws feature a countersunk head type, which essentially allows them to sit flush.