... JIS ,ASTM,DIN ,BS or per customers' requirement spec:hexgon flange bolts standard: JIS ,ASTM,DIN ,BS or per customers' requirement ... or samples. Product rangeBOLTS: hex bolts, heavy hex bolts, hex flange bolts, carrage bolts, wheel bolts, stud boltsNUTS: hex nuts, ... heavy hex nuts, hex flange nuts, nylon insert lock nuts, cap nuts, slotted nuts, rivet nutWASHERS: flat washers ...