Product Description ISO 8677 (DIN 603) Galvanized Carriage Bolt round head square neck bolt We offer Carriage Bolts in various standards that are typically used in Road Crash Barriers, Electric Towers and Mobile Tower assemblies etc. Details are as follows: Standards: ISO 8677, DIN 603, BS 4933, ANSI B18.5.2.1M Grade: 4.6, 5.6, 8.8, 10.9 Size: M10 to M24 Forging: Cold/ Hot FOrged Finish: HDG, Zinc, Black Material carbon steel Color white,yellow,black Standard D…