Hex Lag Screw, Machine Screw, Hex Socket Cap Screw manufacturer / supplier in China, offering DIN912/ASME/ANSI Grade4.8/ 8.8/12.9 Hex Socket Head Cap Screw M5 Series, DIN912/ASME/ANSI Grade4.8/ 8.8/12.9 Hex Socket Head Cap Screw M4 Series, DIN912/ASME/ANSI Grade4.8/ 8.8/12.9 Hex Socket Head Cap Screw M3 Series and so on.
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