ボルト フランジ- Bolt Flange
 
Flange bolt with a dimple head, M6, M8, M10, M12:
The reference number is 96300-ZZXXX-0Y.
XXX is the length in millimeter
Y is the plating, 0 for white zinc, 7 for black, 8 for Chromate chromate
ZZ is the size, 06, 08, 10, 12
 
You will receive each bolt in a separate sealed plastic bag. OEM stuff is always a safe choice for quality.