... ,ISO 4.black,zinc plated,HDG,etc Steel thread rod stud 1.Features Material: Carbon steel, stainless steelFinished: PL, ... 30 days after order is confired2) nelson stud Dimensions Product name nelson stud Specification M2-50MaterialMild/medium/high carbon steelMaterial grade4 ... are unqualified,we take full responsibility for it.3) nelson stud Picture details4) Factory: 5) Packing: 6) Company Information: ...