Countersunk Allen Bolts. Allen key sizes: M6=4mm key. A2 Stainless Steel. Stainless Steel A2 (304), DIN 7991. The bolt length includes the head. Bolt World.
M6 (6mm) A2 STAINLESS HEXAGONAL FLANGE BOLTS WITH FREE A2 FULL NUTS & A2 WASHERS
M6 ( 6mm ) A2 STAINLESS STEEL FLANGED BUTTON HEAD SCREWS HEX SOCKET FLANGE BOLTS
M6 6MM A2 STAINLESS STEEL FLANGE DOME HEAD BOLT WITH NYLOC NUT AND WASHERS
M6 / 6mm A2 STAINLESS SLOTTED CHEESE HEAD MACHINE SCREWS METRIC SLOT SCREW
M6 / 6mm A2 STAINLESS STEEL THREADED ROD BAR STUD HEXAGON CONNECTOR LONG NUTS
M6 / 6mm A2 STAINLESS STEEL TORX FLANGED BUTTON SCREWS HEXOBULAR SIX LOBE TX30