... 1)Stud 2)Material: Carbon steel, B7, 42CrMo 3)Surface: Plain, Black, HDG, Dacromet, etc 4)Reliable quality We have nearly ... Train, Petroleum and Petrochemical field, etc..1) Product name: double end stud2) Size: M16-M1503) Material: B7, 42CrMo, etc4) Standard: ... DIN, ANSI, BS, JIS, GB, ANSI5) Finish/surface treatment: Galvanized, Plain, Black, HDG, Dacromet, Delta MKS, Geomet 6) Packing: Carton 7 ...