1 non-stardard screw 2 Material :A2.A4.SUS201.304.316 3.Advantage:Mainly used in the solar equipement Quick Details:Origin: ... Color:silver,plainPacking &Delivery:Packing items:usually packed in bulk,also packed in plastic bags and then to carton,also can be ... 9StandardGB37,DIN,JIS,ANSIColorsilver,plainTechnology:cold forging,heat treatment,Packing:in bulk,in plastic bags and then to carton,and can be ...