Viti bulloni testa esagonale filettatura fine nera grado 8,8 alta resistenza M8 M10 M12

Surface: blackened. Head type: Hexagon socket. Model: Grade 8.8 Fine Thread Hexagonal Bolts. Pitch: 1mm 1.25mm 1.5mm. Product strength: Grade 8.8. Length：16mm-60mm(Excluding head thickness).

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