Step bolt Size: 5/8x7", 3/4x7 1/2", 3/4x8" Material: Carbon Steel ... , T-1 Finish: H.D.G Products information: Step boltSize: 5/8x7", 3/4x7 1/2", 3/4x8"Material: Carbon SteelGrade ... bolts, heavy hex bolts, Tower bolt,stud bolt,hex flange bolts, Carriage bolt, threaded rod, eye bolt, square bolt etc. *Standard:IFI,DIN,ISO*Material ... .8 8.8,10.9,12.9,SAE J429 Gr2, 5, 8,ASTM A325,A307,A490, A394 T-0, T-1 ...