... /HDG, Black, Yellow ZincThe following Grade of heavy hex nuts are also available:ASTM A194 2HM, ... regualr products are as following:Bolt: hex bolts, heavy hex bolts, hex flange bolts, carrage bolts, B7 ... stud boltsNuts: hex nuts, heavy hex nuts, hex flange nuts, nylon insert lock ... Our products are as following:Bolts: hex bolts, heavy hex bolts, hex flange bolts, carriage bolts, stud ...