high strength egg neck bolts 1.standard:GB8262 2.class:8.8 3.material:alloy steel 4.finishing:zinc high strength egg neck bolts1.Standard:GB8262,ANSI ... .etc2.Metail:Carbon steel,stainless steel3.Size:M6 ... United States, Saudi Arabia, Europe,South Korea,Southeast Asia ,etc. high strength egg neck bolts