Hex Lag Screw, Machine Screw, Hex Socket Cap Screw manufacturer / supplier in China, offering DIN933/ISO4017 Hex Bolts Grade 8.8 HDG Black/Yellow/White Zinc Plated M6*6-80mm, DIN933/ISO4017 Hex Bolts Grade 12.9 HDG Black/Yellow/White Zinc Plated M6*6-80mm, DIN933/ISO4017 Hex Bolts Grade 10.9 HDG Black/Yellow/White Zinc Plated M6*6-80mm and so on.
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