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WRENCH BOLT M4 ~ M16WRENCH SEMS BOLT is used throughout industries such as electricity,
Electronics, automobiles, and nuclear power.Detailed Information Material S45C(8.8, 10.9, 12.9), SUS304, SUS316, SUS316L Coating zinc-plated(yellow, white, black, whisker), GEOMAT, hot dipping Size M5, M6, M8, M10, M12