Anti-corrosion protection: zinc electroplated coating. You will get answer in 30 minutes. If You don't live in Great Britain.
M6 - 6mm Hex Screw Nylon Lock Nut Washer Bolt Nyloc A2-70 Stainless Steel (304)
M6 ( 6mm ) A2 STAINLESS STEEL FLANGED BUTTON HEAD SCREWS HEX SOCKET FLANGE BOLTS
M6 6mm FLANGED HEXAGON HEAD BOLTS FLANGE HEX SCREWS A2 STAINLESS STEEL DIN 6921
M6 6MM A2 STAINLESS STEEL FLANGE DOME HEAD BOLT WITH PLAIN HEX NUT AND WASHERS
M6 / 6mm A2 STAINLESS STEEL FLAT POINT GRUB SCREWS HEX SOCKET SET SCREW DIN 913
M6 ( 6mm ) A2 STAINLESS STEEL CONE POINT GRUB SCREWS HEX SOCKET SET SCREW DIN914
