... 8.8 10.9 SS201 SS304 SS312 SS316 Hex Flange Bolt1)Sizes:M5-M20 1/4''-5/8'' ... Drawings or SamplesGrade4.8,8.8,10.9,12.9,SUS304,SUS316Surface treatmentZinc,Chrome,Black,Nickel,Dacromat, ... of product:BOLTS: hex bolts, heavy hex bolts, hex flange bolts, carriage bolts, wheel bolts, stud bolts, square ... , hook boltsNUTS: hex nuts, heavy hex nuts, hex flange nuts, nylon insert lock nuts, cap nuts, slotted nuts ...