M6 M8-M16 BOLTS HIGH TENSILE GRADE 12.9 PART THREADED HEXAGON HEAD BLACK SCREWS

Material: Alloy steel / 12.9 grade high strength
Surface: blackened
Packing: plastic bag/carton

Wide range of applications
12.9 grade high strength alloy steel, suitable for bridge steel frame structure beams and columns connection building steel structure, vehicle manufacturing, large shipbuilding industry

Assured selection of materials with excellent quality
The product is made of 12.9 grade high strength alloy steel.
Its hardness and strength characteristics are better than ordinary metal materials.

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