... 2.size:M20X55 3.Standards:DIN933 4.grade:8.8 HDG din933 hex bolt1.Standards:DIN933 ANSI/ASME B18.2.1 ... ,black,ZB,ZBK,ZY,ZW,Sil Plat,Nic Plat,Dacr,HDG or according to customer requirements.5.Grade: grade2 grade5 class4 ... ,bulking,36carton/pallet 4 boxes/carton,small boxes 36carton/pallet HDG din933 hex bolt