M5 M6 M8 M10 A2 Stainless Steel Allen Bolts Socket Cap Screws Hex Head DIN912
M5 M6 M8 M10 Socket Cap Screws A2 Stainless DIN916. They are tightened using a hexagon wrench. Socket Screws. They are fastened with the use of screwdriver with hexagonal insert bits or simply using an Allen key.