Wheel Bolts made of harden steel hex available: 17 &19mm, thread availve:12x1.5mm, 12x1.25mm, 14x1.5mm conical & ball seat Wheel Bolts1.Made of Harden Steel2.HEX available: 17mm, 19mm3.thread availve:12x1.5mm, 12x1.25mm, 14x1.5mm4.conical & ball seat5.finish:chrome, zinc, Dacoromet6.Grade:8.8, 10.9 Wheel Bolts