1. GB16674 M6×45 Hex flange flange bolt (9.8 grade/environmental color Zinc)
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3. M6×22 Hex flang bolt thread (8.8 garde/environmental color Zinc)
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4. GB818M5×12 (environmental color)
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6. Inner plum blossom shaft shoulder screw M6×14+diameter 8.5×2.9 (304 stainless steel)
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