




Sizes : M2 to M18
Length : 3mm to 150mm
Material : Black Alloy Steel
●Product Features :
12.9 grade high-strength bolts, 12 grade hexagonal nuts,
8.8 grade spring washers, 8 grade flat washers, with high toughness and
good hot and cold machining performance, excellent cutting properties and other characteristics.
●Use of products :
Grade 12.9 bolt material, commonly known as high-strength bolts,
is suitable for beam-column connections in steel frame structures, solid
web beam connections, heavy crane beam connections in industrial plants,
braking systems and connections of important structures subjected to dynamic loads.

