High Rust Resistance Din931 Dacromet Hex Bolts 20mm China Factory Direct Full Thread Extension Bolts Hex Head Carbon Steel
Dacromet Hex Bolt: High-quality fastener with hex head, treated by Dacromet coating technology. Offers excellent corrosion resistance, salt spray resistance (up to 500+ hours), and durability in harsh environments like marine, automotive, and industrial settings. Features strong load-bearing capacity, good thread precision, and compatibility with standard tools. Non-toxic, environmentally friendly coating ensures no hydrogen embrittlement risk. Ideal for outdoor, humid, or corrosive applications requiring long-term reliability. Available in various sizes (M3-M30) and grades (8.8/10.9) to meet diverse assembly needs.