Refined eyebolt, smooth spherical surface, high thread precision,
thread size M6 to M64. The surface treatment of the connecting bolt
includes anti-corrosion measures such as hot dip galvanizing,
galvanizing, whitening, etc. Electroplating. The factory color of
high strength bolts is boiled black, and the materials are Q235,
45#, 40Cr, 35CrMoA and stainless steel. Steel 304 and stainless
steel 316, etc