Material :Stainless Steel. The link shows that the inventory is all fake.
FINE PITCH NYLOC NUTS A2 STAINLESS STEEL FINE THREAD NYLON LOCK NUTS M8 M10 M12
M10 x 1.25mm FINE PITCH CAP SCREWS ALLEN KEY SOCKET BOLT HIGH TENSILE BLACK 12.9
M10 x 1.25mm FINE PITCH SOCKET CAP SCREWS HIGH TENSILE BLACK 12.9 ALLEN KEY BOLT
FINE PITCH THREAD HEXAGON FULL NUTS STAINLESS STEEL M8 M10 M12 M14 M16 M18 M20
M10 x 1.25 FINE PITCH SET SCREWS FULLY THREADED HEX BOLTS HIGH TENSILE GRADE 8.8
M10 x 1.25 FINE PITCH FULLY THREADED SET SCREWS HIGH TENSILE GRADE 8.8 HEX BOLT