Material: Carbon steel
Strength grades: 4.8, 8.8, 10.9, 12.9
Surface finishes: Plain / natural, blue-white zinc plated, yellow zinc plated, hot-dip galvanized, tempered blackened, Dacromet
High-strength Dacromet coated carriage bolt. Round head with square neck prevents rotation and theft, making installation easy. Dacromet surface treatment provides excellent corrosion and rust resistance. The material is tough with precision threads. Suitable for humid, acid/alkali, and other complex environments. Used in automotive, machinery, outdoor equipment, and similar fields.