Hex bolt, bolt stud grade 12.9 10.9 8.8 Bolts Hex matanjaka avo, visy faladia Gr8 8 10 9 12 9 Nopetahana zinc China fasteners hita ao ningbo, hex bolts hery avo 8.8 10.9 12.9 Bolts Hex tensile avo, visy faladia DIN kilasy mahazatra 8 8 10 9 12 9 Oksida mainty Karazana kofehy kofehy rehetra, bolt stud, vy karbaona hex nut, DIN, fenitra ASTM hex socket cap bolt/screws DIN912 Gr10.9 Ny karazana fitaovana rehetra, fasteners Lahatsary momba ny bolts ampiasaina amin'ny tetikasa injeniera mpanjifa Matihanina bolt orinasa any Shina DIn6914, EN14399