M5-.8 X 40 FLAT HEAD SOCKET DIN 7991 S/S
M8-1.25 X 40 FLAT HD SOC DIN7991 316 S/S
M6-1.0 X 40 FLAT HD SOC DIN7991 316 S/S
M6-1.0 X 40 FLAT HD SOCKET DIN 7991 S/S FULL THREAD