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1) Standard: ANSI/ASME, DIN, BS, GB, JIS, ISO, Non-standard.
2) Material: Carbon Steel
3) Surface: Plain, Zinc, Black, etc
4) Size: Diameter: M3-M22; Length: 6-220 mm;
5) Grade: Grade 4.8, grade 6.8, grade 8.8, grade 10.9, grade 12.9.
hex head bolt
