Name: hex bolt, haxagon head bolt, hex cap screw, hex flange bolt, heavy hex bolt, hexagon socket bolt
1) Standard: DIN6921, IFI 111 1986 C-28
2) Material: 1008, 1035, Carbon steel, carbon steel , al or stainless steel 304,316  
3) Size: M3X5 to M40X800; 1/4X1/2" to 1-3/4X12"
4) Finish: Plain, Zinc, Black, Nickel, HDG ,Chromate plating